PLATFORM_EMSCRIPTEN -> EMSCRIPTEN

prepare
build adjustments
2026-09-03 11:13:54 +00:00 · 2026-09-01 21:26:37 +00:00 · 2026-09-01 21:21:52 +00:00 · 2026-09-01 21:21:52 +00:00 · 2026-09-01 21:21:52 +00:00 · 2026-09-01 21:21:52 +00:00
59 changed files with 1371 additions and 387 deletions
@@ -0,0 +1,92 @@
+#!/bin/sh -ex
+
+# SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+NUM_JOBS=$(nproc 2>/dev/null || getconf _NPROCESSORS_ONLN 2>/dev/null || echo 2)
+
+: "${CCACHE:=false}"
+RETURN=0
+
+usage() {
+    cat <<EOF
+Usage: $0 [-b|--build-type BUILD_TYPE] [-o|--outdir OUTPUT_DIRECTORY]
+
+Build script for Emscripten (using wasm64).
+
+Options:
+    --build-type    Set the CMake build type (Release|RelWithDebInfo|MinSizeRel|Debug)
+                    Default: Release
+    --outdir        Set the output directory
+                    Default: build
+
+EOF
+    exit "$RETURN"
+}
+
+die() {
+	echo "-- ! $*" >&2
+	RETURN=1 usage
+}
+
+type() {
+    [ -z "$1" ] && die "You must specify a valid type."
+    TYPE="$1"
+}
+
+outdir() {
+    [ -z "$1" ] && die "You must specify a valid output directory."
+    OUTDIR="$1"
+}
+
+while true; do
+	case "$1" in
+		-r|--release) DEVEL=false ;;
+		-b|--build-type) type "$2"; shift ;;
+		-o|--outdir) outdir "$2"; shift ;;
+		-h|--help) usage ;;
+		*) break ;;
+	esac
+	shift
+done
+
+: "${TYPE:=Release}"
+: "${DEVEL:=true}"
+: "${OUTDIR:=build}"
+
+# -sMEMORY64 must be specified twice, see below
+# The CMake toolchain file will match against MEMORY64 but will fail to match if:
+# - it's either -sMEMORY64
+# - or it's either -sMEMORY64=1
+# The line in question:
+# if (CMAKE_C_FLAGS MATCHES "MEMORY64")
+# However why need to specify -sMEMORY64=1 then? Oh that's because if you didn't set
+# the =1, it would assume you meant =0, which equates to not specifying it at all
+# This seems to be fixed in later versions but occurs atleast on 4.0.3-git and below.
+emcmake cmake -B "$OUTDIR" -G "Unix Makefiles" \
+    -DCMAKE_BUILD_TYPE=${TYPE} \
+    -DENABLE_OPENGL=OFF \
+    -DENABLE_LTO=OFF \
+    -DENABLE_QT=OFF \
+    -DENABLE_UNITY_BUILD=OFF \
+    -DENABLE_QT_TRANSLATION=OFF \
+    -DENABLE_CUBEB=OFF \
+    -DENABLE_LIBUSB=OFF \
+    -DENABLE_UPDATE_CHECKER=OFF \
+    -DENABLE_WEB_SERVICE=OFF \
+    -DUSE_DISCORD_PRESENCE=OFF \
+    -DENABLE_WIFI_SCAN=OFF \
+    -DUSE_FASTER_LINKER=ON \
+    -DYUZU_STATIC_BUILD=ON \
+    -DYUZU_USE_BUNDLED_OPENSSL=OFF \
+    -DYUZU_USE_EXTERNAL_FFMPEG=ON \
+    -Dzstd_FORCE_BUNDLED=ON \
+    -DOpenSSL_FORCE_BUNDLED=ON \
+    -DEMSCRIPTEN_SYSTEM_PROCESSOR=wasm \
+    -DCMAKE_C_FLAGS="-s MEMORY64 -m64 -pipe -sMEMORY64=1" \
+    -DCMAKE_CXX_FLAGS="-s MEMORY64 -m64 -pipe -sMEMORY64=1" \
+    -DCMAKE_EXE_LINKER_FLAGS="-sMEMORY64=1 -m64 -Wl,-mwasm64 -sASYNCIFY=1" \
+    -DCMAKE_C_LINK_FLAGS="-sMEMORY64=1 -m64 -Wl,-mwasm64 -sASYNCIFY=1" \
+    -DCMAKE_CXX_LINK_FLAGS="-sMEMORY64=1 -m64 -Wl,-mwasm64 -sASYNCIFY=1"
+
+cmake --build "$OUTDIR" -- -j$NUM_JOBS
@@ -63,6 +63,3 @@ artifacts
 /install*
 vulkansdk*.exe
 *.tar.zst
-
-# Build-time generated external sources
-externals/generated
@@ -0,0 +1,40 @@
+diff --git a/cmake/ConfigureOpenSSL.cmake b/cmake/ConfigureOpenSSL.cmake
+index 3012e05..2ae23ff 100644
+--- a/cmake/ConfigureOpenSSL.cmake
+++ b/cmake/ConfigureOpenSSL.cmake
+@@ -108,7 +108,8 @@ function(configure_openssl)
+     )
+ 
+     if(NOT "${CONFIGURE_OPTIONS_OLD}" STREQUAL "")
+-        if(CONFIGURE_OPTIONS STREQUAL CONFIGURE_OPTIONS_OLD)
+        # TODO(lizzie): Emscripten has issues with rebuilding due to the wrapper it uses
+        if(CMAKE_SYSTEM_NAME MATCHES "Emscripten" OR CONFIGURE_OPTIONS STREQUAL CONFIGURE_OPTIONS_OLD)
+             message(STATUS "Found previous configure results. Don't perform configuration")
+             return()
+         endif()
+@@ -134,10 +135,24 @@ function(configure_openssl)
+         set(VERBOSE_OPTION OUTPUT_QUIET)
+     endif()
+ 
+    if (CMAKE_SYSTEM_NAME MATCHES "Emscripten")
+        set(EMSCRIPTEN_CMAKE_WRAPPER "emcmake")
+        find_program(EMCC emcc REQUIRED)
+        set(EMSCRIPTEN_LINKER ${EMCC})
+        list(APPEND CONFIGURE_COMMAND wasm64)
+    else()
+        set(EMSCRIPTEN_CMAKE_WRAPPER "")
+        set(EMSCRIPTEN_LINKER ${CMAKE_LINKER})
+    endif ()
+
+     execute_process(
+-        COMMAND ${CMAKE_COMMAND} -E env
+        COMMAND ${EMSCRIPTEN_CMAKE_WRAPPER} ${CMAKE_COMMAND} -E env
+             "CFLAGS=${CMAKE_C_FLAGS}"
+             "CXXFLAGS=${CMAKE_CXX_FLAGS}"
+            "LDFLAGS=${CMAKE_CXX_LINK_FLAGS}"
+            "CC=${CMAKE_C_COMPILER}"
+            "CXX=${CMAKE_CXX_COMPILER}"
+            "LD=${EMSCRIPTEN_LINKER}"
+             ${CONFIGURE_COMMAND}
+         WORKING_DIRECTORY ${CONFIGURE_BUILD_DIR}
+         ${VERBOSE_OPTION}
@@ -0,0 +1,112 @@
+diff --git a/Configurations/10-main.conf b/Configurations/10-main.conf
+index e62721e..243feb4 100644
+--- a/Configurations/10-main.conf
+++ b/Configurations/10-main.conf
+@@ -1970,6 +1970,26 @@ my %targets = (
+         multilib         => "64",
+     },
+ 
+    "wasm32" => {
+        inherit_from     => [ "BASE_unix" ],
+        CC               => "emcc",
+        CXX              => "emc++",
+        cflags           => combine("--target=wasm32-unknown-emscripten", threads("-pthread")),
+        cxxflags         => combine("--target=wasm32-unknown-emscripten", threads("-pthread")),
+        lib_cppflags     => add("-DL_ENDIAN"),
+        bn_ops           => "THIRTY_TWO_BIT",
+    },
+    "wasm64" => {
+        inherit_from     => [ "BASE_unix" ],
+        CC               => "emcc",
+        CXX              => "emc++",
+        cflags           => combine("--target=wasm64-unknown-emscripten", threads("-pthread")),
+        cxxflags         => combine("--target=wasm64-unknown-emscripten", threads("-pthread")),
+        lib_cppflags     => add("-DL_ENDIAN"),
+        bn_ops           => "SIXTY_FOUR_BIT_LONG",
+    },
+
+
+ #### uClinux
+     "uClinux-dist" => {
+         inherit_from     => [ "BASE_unix" ],
+diff --git a/crypto/rand/rand_lib.c b/crypto/rand/rand_lib.c
+index d9e8f02..7faf347 100644
+--- a/crypto/rand/rand_lib.c
+++ b/crypto/rand/rand_lib.c
+@@ -379,17 +379,27 @@ void RAND_add(const void *buf, int num, double randomness)
+ #if !defined(OPENSSL_NO_DEPRECATED_1_1_0)
+ int RAND_pseudo_bytes(unsigned char *buf, int num)
+ {
+#if defined(__wasi__)
+    arc4random_buf(buf, num);
+    return 1;
+#elif defined(__EMSCRIPTEN__)
+    return 1;
+#else
+     const RAND_METHOD *meth = RAND_get_rand_method();
+ 
+     if (meth != NULL && meth->pseudorand != NULL)
+         return meth->pseudorand(buf, num);
+     ERR_raise(ERR_LIB_RAND, RAND_R_FUNC_NOT_IMPLEMENTED);
+     return -1;
+#endif
+ }
+ #endif
+ 
+ int RAND_status(void)
+ {
+#if defined(__EMSCRIPTEN__) || defined(__wasi__)
+    return 1;
+#else
+     EVP_RAND_CTX *rand;
+ #ifndef OPENSSL_NO_DEPRECATED_3_0
+     const RAND_METHOD *meth = RAND_get_rand_method();
+@@ -401,6 +411,7 @@ int RAND_status(void)
+     if ((rand = RAND_get0_primary(NULL)) == NULL)
+         return 0;
+     return EVP_RAND_get_state(rand) == EVP_RAND_STATE_READY;
+#endif
+ }
+ #else /* !FIPS_MODULE */
+ 
+@@ -420,6 +431,12 @@ const RAND_METHOD *RAND_get_rand_method(void)
+ int RAND_priv_bytes_ex(OSSL_LIB_CTX *ctx, unsigned char *buf, size_t num,
+     unsigned int strength)
+ {
+#if defined(__wasi__)
+    arc4random_buf(buf, num);
+    return 1;
+#elif defined(__EMSCRIPTEN__)
+    return 1;
+#else
+     RAND_GLOBAL *dgbl;
+     EVP_RAND_CTX *rand;
+ #if !defined(OPENSSL_NO_DEPRECATED_3_0) && !defined(FIPS_MODULE)
+@@ -451,6 +468,7 @@ int RAND_priv_bytes_ex(OSSL_LIB_CTX *ctx, unsigned char *buf, size_t num,
+         return EVP_RAND_generate(rand, buf, num, strength, 0, NULL, 0);
+ 
+     return 0;
+#endif
+ }
+ 
+ int RAND_priv_bytes(unsigned char *buf, int num)
+diff --git a/ssl/ssl_cert.c b/ssl/ssl_cert.c
+index 3d21801..e026f8f 100644
+--- a/ssl/ssl_cert.c
+++ b/ssl/ssl_cert.c
+@@ -941,6 +941,7 @@ done:
+     return ret;
+ }
+ 
+#ifndef OPENSSL_NO_POSIX_IO
+ int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack,
+     const char *dir)
+ {
+@@ -1016,6 +1017,7 @@ err:
+ 
+     return ret;
+ }
+#endif
+ 
+ static int add_uris_recursive(STACK_OF(X509_NAME) *stack,
+     const char *uri, int depth)
@@ -214,6 +214,8 @@ if(MSVC)
 endif()

 # TODO(crueter): Cleanup, each dep that has a bundled option should allow to choose between bundled, external, system
+cmake_dependent_option(YUZU_USE_BUNDLED_SDL3 "Download bundled SDL3 build" "${MSVC}" "NOT ANDROID" OFF)
+
 option(ENABLE_CUBEB "Enables the cubeb audio backend" ON)

 set(EXT_DEFAULT OFF)
@@ -221,8 +223,6 @@ if (MSVC OR ANDROID)
    set(EXT_DEFAULT ON)
 endif()

-option(YUZU_USE_BUNDLED_SDL3 "Download bundled SDL3 build" ${EXT_DEFAULT})
-
 # ffmpeg
 option(YUZU_USE_BUNDLED_FFMPEG "Download bundled FFmpeg" ${EXT_DEFAULT})
 cmake_dependent_option(YUZU_USE_EXTERNAL_FFMPEG "Build FFmpeg from external source" "${SOLARIS}" "NOT WIN32 AND NOT ANDROID" OFF)
@@ -238,7 +238,7 @@ option(YUZU_USE_BUNDLED_SIRIT "Download bundled sirit" ${BUNDLED_SIRIT_DEFAULT})
 # FreeBSD 15+ has libusb, versions below should disable it
 cmake_dependent_option(ENABLE_LIBUSB "Enable the use of LibUSB" ON "WIN32 OR LINUX OR FREEBSD OR APPLE" OFF)

-cmake_dependent_option(ENABLE_OPENGL "Enable OpenGL" ON "NOT (WIN32 AND ARCHITECTURE_arm64) AND NOT APPLE AND NOT ANDROID" OFF)
+cmake_dependent_option(ENABLE_OPENGL "Enable OpenGL" ON "NOT (WIN32 AND ARCHITECTURE_arm64) AND NOT APPLE" OFF)
 mark_as_advanced(FORCE ENABLE_OPENGL)

 option(ENABLE_WEB_SERVICE "Enable web services (telemetry, etc.)" ON)
@@ -377,6 +377,15 @@ set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${PROJECT_BINARY_DIR}/bin)
 # Prefer the -pthread flag on Linux.
 set(THREADS_PREFER_PTHREAD_FLAG ON)
 find_package(Threads REQUIRED)
+# It is absolutely promordial to enable on Emscripten
+# Not only this allows to use std::thread and std::jthread without exceptions
+# but it also fixes several issues related to MT operations.
+# ...and CMake doesn't include it by default even when we specify
+# that we prefer the pthread flag; why is that? I don't know.
+if (EMSCRIPTEN)
+    add_compile_options($<$<COMPILE_LANGUAGE:C,CXX>:-pthread>)
+    add_link_options($<$<COMPILE_LANGUAGE:C,CXX>:-pthread>)
+endif()

 find_package(RenderDoc MODULE)

@@ -405,7 +414,12 @@ set(BUILD_TESTING OFF)
 set(ENABLE_TESTING OFF)

 # boost
-set(BOOST_INCLUDE_LIBRARIES algorithm icl pool container heap asio headers process filesystem crc variant)
+if (EMSCRIPTEN)
+    set(BOOST_INCLUDE_LIBRARIES algorithm icl pool container heap headers filesystem crc variant)
+    set(BOOST_CONTAINER_HEADER_ONLY ON)
+else()
+    set(BOOST_INCLUDE_LIBRARIES algorithm icl pool container heap asio headers process filesystem crc variant)
+endif()

 AddJsonPackage(boost)

@@ -426,10 +440,12 @@ if (Boost_ADDED)

        target_compile_options(boost_heap INTERFACE $<$<COMPILE_LANGUAGE:C,CXX>:-Wno-shadow>)
        target_compile_options(boost_icl INTERFACE $<$<COMPILE_LANGUAGE:C,CXX>:-Wno-shadow>)
-        target_compile_options(boost_asio INTERFACE
-            $<$<COMPILE_LANGUAGE:C,CXX>:-Wno-conversion>
-            $<$<COMPILE_LANGUAGE:C,CXX>:-Wno-implicit-fallthrough>
-        )
+        # May not exist (i.e emscripten)
+        if (TARGET boost_asio)
+            target_compile_options(boost_asio INTERFACE
+                $<$<COMPILE_LANGUAGE:C,CXX>:-Wno-conversion>
+                $<$<COMPILE_LANGUAGE:C,CXX>:-Wno-implicit-fallthrough>)
+        endif()
    endif()
 endif()

@@ -22,9 +22,9 @@ Eden is free, open-source, copyleft software, licensed under the terms of the [G

 - No LLM or AI usage, *period*, for patches, pull requests, issues, comments, debugging, brainstorming, etc.
  - For details on why, see the [detailed AI policy](docs/policies/AI.md).
- Usage of any form of profanity or otherwise unsavory language is prohibited.
+- Usage of any form of profanity or otherwise unsavory language is generally discouraged.
  - This is primarily because it rarely helps to actually understand what's going on.
-  - Remember that your comments should be focused and actually address what's happening.
+  - Remember that your comments should be focused and actually address what's happening. With very few exceptions, expletives are actively detrimental at best.
 - New code must follow the same general style as the surrounding codebase. Exceptions may be granted in certain cases.
 - Maintainers reserve the right to change your patches and pull requests at will. We will try to avoid this.
  - You should generally respect all decisions made by the [code owners](docs/CODEOWNERS) in your particular subsystem.
@@ -115,7 +115,7 @@
        "find_args": "MODULE GLOBAL",
        "hash": "159ed94965018f2a371d45a3bfc1961e5fb1549e501ded70a6b4532d7fe99d0579c18b5195aff6e35f96f399b426cea2650ec9fb75ef80d4c9edeccb51f2e6c9",
        "options": [
-            "HTTPLIB_REQUIRE_OPENSSL ON",
+            "HTTPLIB_REQUIRE_OPENSSL OFF",
            "HTTPLIB_DISABLE_MACOSX_AUTOMATIC_ROOT_CERTIFICATES ON"
        ],
        "patches": [
@@ -186,12 +186,19 @@
        "repo": "eden-emulator/oaknut",
        "version": "v2.0.3"
    },
+    "oboe": {
+        "bundled": true,
+        "hash": "ce4011afe7345370d4ead3b891cd69a5ef224b129535783586c0ca75051d303ed446e6c7f10bde8da31fff58d6e307f1732a3ffd03b249f9ef1fd48fd4132715",
+        "repo": "google/oboe",
+        "version": "1.10.0"
+    },
    "openssl": {
        "hash": "29002ce50cb95a4f4f1d0e9d3f684401fbd4eac34203dc2eef3b6334af5d44aa46bf788b63a6f5c139c383eafb7269ae87a58a9a3ad5912903b9773e545ccc0a",
        "min_version": "3.0.0",
        "package": "OpenSSL",
        "patches": [
-            "0001-add-bundled-cert.patch"
+            "0001-add-bundled-cert.patch",
+            "0002-wasm-support.patch"
        ],
        "repo": "openssl/openssl",
        "version": "openssl-3.6.2"
@@ -213,7 +220,8 @@
            "0001-cpmutil-compat.patch",
            "0002-use-ccache.patch",
            "0003-use-cmake-compiler-flags.patch",
-            "0004-use-shell-wrapper.patch"
+            "0004-use-shell-wrapper.patch",
+            "0005-wasm-support.patch"
        ],
        "repo": "jimmy-park/openssl-cmake",
        "version": "3.6.2"
@@ -12,6 +12,7 @@
 - [NetBSD](#netbsd)
 - [MSYS2](#msys2)
 - [RedoxOS](#redoxos)
+- [WebAssembly](#webassembly)
 <!-- /TOC -->

 ## Arch Linux
@@ -239,6 +240,22 @@ find ./*/ -name "*.dll" | while read -r dll; do deps "$dll"; done

 ## RedoxOS

-Package installs randomly hang at times, you may need to restart it about 3-5 times to complete. Always do `sudo pkg update` or it will hang. Try installing each package individually.
+The package install may randomly hang at times, in which case it has to be restarted. ALWAYS do a `sudo pkg update` or the chances of it hanging will be close to 90%. If "multiple" installs fail at once, try installing 1 by 1 the packages.

-When CMake invokes certain file syscalls - most of the time it causes crashes, and corruptions on the address space. Reboot if there's a freeze over 5 minutes.
+When CMake invokes certain file syscalls - it may sometimes cause crashes or corruptions on the (kernel?) address space - so reboot the system if there is a "hang" in CMake.
+
+## WebAssembly
+
+**It doesn't run on a browser yet.**
+
+WebAssembly or "WASM" for short is a *mainly 32-bit* virtual "architecture" which we only bootstrap on 64-bit only. This means not only the program runs 2x slower than it would due to using JS BigInt, it also means we need to go out of our way to enable proper 64-bit support via `-sMEMORY64=1`, however once again, some Emscripten quirks force us to specify `-s MEMORY64` and `-sMEMORY64=1` at the same time: see the [CI build script](../.ci/wasm/build.sh).
+
+The WebAssembly target is very heavy on resources and requires at least 4 times the normal amount of resources that a native build would. Additionally, the only supported environment is Firefox at the moment, node.js and `wasmtime are not supported (PRs welcome!)
+
+If running under Firefox and you hit "out of memory" on dev console, close the entire tab, then open it back again, see [this issue](https://github.com/emscripten-core/emscripten/issues/8126).
+
+To run the binary (after building) you should be fine with `node ./eden-cli.js`. For obvious reasons no Qt frontend is available on WASM, support for Vulkan is done charily via [llvmpipe2wasm](https://github.com/Devsh-Graphics-Programming/llvmpipe2wasm).
+
+If you run into the error "acorn.js can't be found" check [this associated issue](https://github.com/emscripten-core/emscripten/issues/13368), the fix in short is `npm --global install acorn`. On FreeBSD you could run `npm` under root, or you could do the sane thing and do `sudo chown -R $USER /usr/local/lib/node_modules/ /usr/local/bin/` (remember to restore permissions afterwards!) unless you wish to run `npm` under root which is generally a bad idea.
+
+2026-06-09: As of writing, no Dynarmic-based JIT is possible on this target, full interpreted emulation is the only reasonable option. While there is some efforts on making a JIT like [here](https://github.com/wingo/wasm-jit) or [here](https://wingolog.org/archives/2022/08/18/just-in-time-code-generation-within-webassembly), the result is so latency expensive we're better off using an interpreter instead.
@@ -361,6 +361,14 @@ pkgman install git cmake patch libfmt_devel nlohmann_json lz4_devel opus_devel b

 [Caveats](./Caveats.md#haikuos).

+</details>
+<details>
+<summary>WebAssembly</summary>
+
+Emscripten: The default installation should provide enough.
+
+[Caveats](./Caveats.md#wasm).
+
 </details>
 <details>
 <summary>RedoxOS</summary>
@@ -38,7 +38,7 @@ Pull requests are only to be merged by core developers when properly tested and

 - The level of namespacing is generally left to the committer's choice.
 - However, we never recommend going more than two levels *except* in `hle`, in which case you may go as many as four levels depending on the specificity of your changes.
- Occasionally, up to two additional namespaces may be provided for more clarity.
+- Ocassionally, up to two additional namespaces may be provided for more clarity.
  - Changes that affect the entire project (sans CMake changes) should be namespaced as `meta`.
 - Maintainers are permitted to change namespaces at will.
 - Commits within PRs are not required to be namespaced, but it is highly recommended.
@@ -51,8 +51,8 @@ When adding new settings, use `tr("Setting:")` if the setting is meant to be a f
 - Debug settings must never be turned on by default.
 - Provide reasonable bounds (for example, a setting controlling the amount of VRAM should never be 0).
 - The description of the setting must be short and concise, if the setting "does a lot of things" consider splitting the setting into multiple if possible.
- Try to avoid excessive/redundant explanations "recommended for most users and games" can just be "(recommended)".
- Try to not write "slow/fast" options unless it clearly degrades/increases performance for a given case, as most options may modify behavior that result in different metrics across different systems. If for example the option is an "accuracy" option, writing "High" is sufficient to imply "Slow". No need to write "High (Slow)".
+- Try to avoid excessive/redundant explainations "recommended for most users and games" can just be "(recommended)".
+- Try to not write "slow/fast" options unless it clearly degrades/increases performance for a given case, as most options may modify behaviour that result in different metrics accross different systems. If for example the option is an "accuracy" option, writing "High" is sufficient to imply "Slow". No need to write "High (Slow)".

 Some examples:

@@ -91,7 +91,7 @@ You may additionally need the `Qt Extension Pack` extension if building Qt.

 # Build speedup

-If you have an HDD, use ramdisk (build in RAM); you need about 4GB for a `RelWithDebInfo` build:
+If you have an HDD, use ramdisk (build in RAM), approximately you need 4GB for a full build with debug symbols:

 ```sh
 mkdir /tmp/ramdisk
@@ -76,7 +76,7 @@ The following options are desktop only.

 - `ENABLE_LIBUSB` (ON) Enable the use of the libusb input backend (HIGHLY RECOMMENDED)
 - `ENABLE_OPENGL` (ON) Enable the OpenGL graphics backend
-  - Unavailable on Windows/ARM64 and on Android
+  - Unavailable on Windows/ARM64
  - You probably shouldn't turn this off.

 ### Qt
@@ -3,9 +3,9 @@
 > [!WARNING]
 > This guide is intended for developers ONLY. If you're looking for configuring the emulator itself, read **[the user handbook](./user/README.md)**.

-Settings have their own dedicated subsystem. Toggles can be added to gate features and fixes, as not all of them apply to every game.
+Settings on the emulator are very important, toggles and such can be used to guard and/or add branches to paths where some games may crash while others won't, and viceversa.

-However, this process can be tedious for those unfamiliar; this document serves as an outline for the settings subsystem.
+However, this process can be tedious for those unfamiliar; this document serves as an outline/documentation for the settings subsystem.

 ## Index

@@ -12,7 +12,7 @@ AMD64, aka x86_64, is the most tested and supported architecture for desktop tar

 ### Caveats

-AMD64 systems are almost always limited by the CPU. For example, a Zen 5/RX 6600 system will often hit max CPU usage before the GPU ever reaches 70% usage, with minimal exceptions (that tend to pop up only at >200fps). JIT is slow.
+AMD64 systems are almost always limited by the CPU. For example, a Zen 5/RX 6600 system will often hit max CPU usage before the GPU ever reaches 70% usage, with minimal exceptions (that tend to pop up only at >200fps). JIT is slow!

 Computers on Linux will almost always run Eden strictly better than an equivalent machine on Windows. This is largely due to the way the Linux kernel handles memory management (and the lack of Microsoft spyware).

@@ -24,7 +24,7 @@ ARM64, aka aarch64, is the only supported architecture for Android, with limited

 ### Caveats

-NCE (Native Code Execution) is currently only available on Android and (experimentally) Linux. Support for macOS is in the works, but Windows is extremely unlikely to ever happen (if you want it -- submit patches). Generally, if NCE is available, you should pretty much always use it due to the massive performance hit JIT has.
+NCE (Native Code Execution) is currently only available on Android and (experimentally) Linux. Support for macOS is in the works, but Windows is extremely unlikely to ever happen (if you want it--submit patches!). Generally, if NCE is available, you should pretty much always use it due to the massive performance hit JIT has.

 When NCE is enabled, do note that the GPU will almost always be the limiting factor. This is especially the case for Android, as well as desktops that lack dedicated GPUs; Adreno, Mali, PowerVR, etc. GPUs are generally significantly weaker relative to their respective CPUs.

@@ -44,7 +44,7 @@ Only Fedora/riscv64 has been tested, but in theory, every riscv64 distribution t

 ## Other

-Other architectures, such as SPARC, MIPS, PowerPC, Loong, and all 32-bit architectures are completely unsupported, as there is no JIT backend or emitter thereof. If you want support for it -- submit patches.
+Other architectures, such as SPARC, MIPS, PowerPC, Loong, and all 32-bit architectures are completely unsupported, as there is no JIT backend or emitter thereof. If you want support for it -- submit patches!

 IA-64 (Itanium) support is completely unknown. Existing amd64 packages will not run on IA-64 (assuming you can even find a supported Windows/Linux distribution)

@@ -106,14 +106,14 @@ Qualcomm Snapdragon SoCs are generally the most well supported.
  * A good base to compare to is the Snapdragon 865--e.g. [Tensor vs SD865](https://archive.is/M1P58)
  * Some benchmarks may be misleading due to thermal throttling OR RAM requirements.
    - For example, a Pixel 6a (Tensor G1) performs about 1/3 as well as an 865 due to its lack of RAM and poor thermals.
-  * Remember--always use a cooler if you can, and you MUST have *at least* 8GB of RAM.
+  * Remember--always use a cooler if you can, and you MUST have *at least* 8GB of RAM!
 - If you're not sure what SoC you have, check [GSMArena](https://www.gsmarena.com) - e.g. [Pixel 9 Pro](https://archive.ph/91VhA)

 Custom ROMs are recommended, *as long as* you know what you're doing.
 - For most devices, [LineageOS](https://lineageos.org/) is preferred.
 - [CalyxOS](https://calyxos.org/) is available as well.
 - For Google Pixel devices ONLY... and [soon another OEM](https://archive.ph/cPpMd)... [GrapheneOS](https://grapheneos.org/) is highly recommended.
-  * As of October 5, 2025, the Pixel 10 line is unsupported, however, [it will be](https://archive.is/viAUl) in the very near future.
+  * As of October 5, 2025, the Pixel 10 line is unsupported, however, [it will be](https://archive.is/viAUl) in the very near future!
  * Keep checking the [FAQ page](https://grapheneos.org/faq#supported-devices) for news.
 - Custom ROMs will likely be exclusively recommended in the future due to Google's upcoming [draconian](https://archive.is/hGIjZ), [anti-privacy, anti-user](https://archive.is/mc1CJ) verification requirements.

@@ -136,50 +136,49 @@ if(ENABLE_CUBEB)
    endif()
 endif()

-if (NOT YUZU_USE_BUNDLED_SDL3)
-    if (NOT WIN32)
-        # Yuzu itself needs: Atomic Audio Events Joystick Haptic Sensor Threads Timers
-        # Since 2.0.18 Atomic+Threads required for HIDAPI/libusb (see https://github.com/libsdl-org/SDL/issues/5095)
-        # Yuzu-cmd also needs: Video (depends on Loadso/Dlopen)
-        # CPUinfo also required for SDL Audio, at least until 2.28.0 (see https://github.com/libsdl-org/SDL/issues/7809)
-        set(SDL_UNUSED_SUBSYSTEMS
-            File Filesystem
-            Locale Power Render)
-        foreach(_SUB ${SDL_UNUSED_SUBSYSTEMS})
-          string(TOUPPER ${_SUB} _OPT)
-          set(SDL_${_OPT} OFF)
-        endforeach()
+if (NOT ANDROID)
+    if (NOT YUZU_USE_BUNDLED_SDL3)
+        if (NOT WIN32)
+            # Yuzu itself needs: Atomic Audio Events Joystick Haptic Sensor Threads Timers
+            # Since 2.0.18 Atomic+Threads required for HIDAPI/libusb (see https://github.com/libsdl-org/SDL/issues/5095)
+            # Yuzu-cmd also needs: Video (depends on Loadso/Dlopen)
+            # CPUinfo also required for SDL Audio, at least until 2.28.0 (see https://github.com/libsdl-org/SDL/issues/7809)
+            set(SDL_UNUSED_SUBSYSTEMS
+                File Filesystem
+                Locale Power Render)
+            foreach(_SUB ${SDL_UNUSED_SUBSYSTEMS})
+              string(TOUPPER ${_SUB} _OPT)
+              set(SDL_${_OPT} OFF)
+            endforeach()

-        set(HIDAPI ON)
-    endif()
+            set(HIDAPI ON)
+        endif()

-    if (APPLE)
-        set(SDL_FILE ON)
-    endif()
+        if (APPLE)
+            set(SDL_FILE ON)
+        endif()

-    AddJsonPackage(sdl3)
-else()
-    message(STATUS "Using bundled SDL3")
-    AddJsonPackage(sdl3-ci)
-
-    # copy sdl java sources for consumption by Gradle
-    if (ANDROID)
-        file(COPY ${SDL3_SOURCE_DIR}/java DESTINATION ${CMAKE_CURRENT_SOURCE_DIR}/generated/sdl)
-    endif()
-endif()
-
-# Normalize SDL3 link target across package variants.
-# Some SDL3 packages export only SDL3::SDL3-shared or SDL3::SDL3-static.
-if (NOT TARGET SDL3::SDL3)
-    if (TARGET SDL3::SDL3-shared)
-        add_library(SDL3::SDL3 ALIAS SDL3::SDL3-shared)
-    elseif (TARGET SDL3::SDL3-static)
-        add_library(SDL3::SDL3 ALIAS SDL3::SDL3-static)
+        AddJsonPackage(sdl3)
    else()
-        message(FATAL_ERROR "SDL3 package found, but no usable SDL3 target was exported")
+        message(STATUS "Using bundled SDL3")
+        AddJsonPackage(sdl3-ci)
+    endif()
+
+    # Normalize SDL3 link target across package variants.
+    # Some SDL3 packages export only SDL3::SDL3-shared or SDL3::SDL3-static.
+    if (NOT TARGET SDL3::SDL3)
+        if (TARGET SDL3::SDL3-shared)
+            add_library(SDL3::SDL3 ALIAS SDL3::SDL3-shared)
+        elseif (TARGET SDL3::SDL3-static)
+            add_library(SDL3::SDL3 ALIAS SDL3::SDL3-static)
+        else()
+            message(FATAL_ERROR "SDL3 package found, but no usable SDL3 target was exported")
+        endif()
    endif()
 endif()

+set(BUILD_SHARED_LIBS OFF)
+
 # SPIRV Headers
 AddJsonPackage(spirv-headers)

@@ -386,6 +385,13 @@ if (YUZU_CRASH_DUMPS AND NOT TARGET libbreakpad_client)
    endif()
 endif()

+# oboe
+if (ANDROID)
+    AddJsonPackage(oboe)
+
+    add_library(oboe::oboe ALIAS oboe)
+endif()
+
 if (APPLE)
    # moltenvk
    if (NOT YUZU_USE_BUNDLED_MOLTENVK)
@@ -94,6 +94,10 @@ function(detect_architecture_symbols)
 endfunction()

 # arches here are put in a sane default order of importance
+# EXCEPT FOR WASM, which must be probed for FIRST, because some genius
+# decided to also allow the host architecture to be defined when building
+# for the emscripten target, absolutely lovely detail.
+#
 # notably, amd64, arm64, and riscv (in order) are BY FAR the most common
 # mips is pretty popular in embedded
 # ppc64 is pretty popular in supercomputing
@@ -101,6 +105,11 @@ endfunction()
 # ia64 exists
 # the rest exist, but are probably less popular than ia64

+detect_architecture_symbols(
+    ARCH wasm
+    SYMBOLS
+        "__EMSCRIPTEN__")
+
 detect_architecture_symbols(
    ARCH arm64
    SYMBOLS
@@ -203,11 +212,6 @@ detect_architecture_symbols(
        "__loongarch__"
        "__loongarch64")

-detect_architecture_symbols(
-    ARCH wasm
-    SYMBOLS
-        "__EMSCRIPTEN__")
-
 # "generic" target
 # If you have reached this point, you're on some as-of-yet unsupported architecture.
 # See the docs up above for known unsupported architectures
@@ -20,6 +20,9 @@ elseif (${CMAKE_SYSTEM_NAME} STREQUAL "managarm")
    set(MANAGARM ON)
 elseif (${CMAKE_SYSTEM_NAME} STREQUAL "Haiku")
    set(HAIKUOS ON)
+elseif (${CMAKE_SYSTEM_NAME} STREQUAL "Emscripten")
+    set(EMSCRIPTEN ON)
+    message(WARNING "${CMAKE_LIBRARY_ARCHITECTURE} support is highly experimental!!!")
 endif()

 # BSD
@@ -97,3 +100,25 @@ if (MINGW)
    set(CMAKE_EXE_LINKER_FLAGS_RELEASE
        "${CMAKE_EXE_LINKER_FLAGS_RELEASE} ${MINGW_FLAGS}")
 endif()
+
+if (EMSCRIPTEN)
+    set(EMSCRIPTEN_C_FLAGS "-s MEMORY64 -m64 -pipe -sMEMORY64=1")
+    set(EMSCRIPTEN_LINK_FLAGS "-sMEMORY64=1 -m64 -Wl,-mwasm64 -sASYNCIFY=1")
+
+    # This prevents FFmpeg and other libraries from assuming it's the host's CPU
+    # Additionally some Emscripten installs may not be very good... generally
+    set(EMSCRIPTEN_SYSTEM_PROCESSOR wasm)
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${EMSCRIPTEN_C_FLAGS}")
+    set(CMAKE_CXX_FLAGS "${CMAKE_C_FLAGS} ${EMSCRIPTEN_C_FLAGS}")
+    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${EMSCRIPTEN_LINK_FLAGS}")
+    set(CMAKE_C_LINK_FLAGS "${CMAKE_C_LINK_FLAGS} ${EMSCRIPTEN_LINK_FLAGS}")
+    set(CMAKE_CXX_LINK_FLAGS "${CMAKE_CXX_LINK_FLAGS} ${EMSCRIPTEN_LINK_FLAGS}")
+
+    unset(EMSCRIPTEN_C_FLAGS)
+    unset(EMSCRIPTEN_LINK_FLAGS)
+endif()
+
+# awesome
+if (FREEBSD OR DRAGONFLYBSD)
+    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -L${CMAKE_SYSROOT}/usr/local/lib")
+endif()
@@ -35,26 +35,37 @@ if (NOT YUZU_USE_BUNDLED_FFMPEG)
    elseif (NOT (CMAKE_HOST_SYSTEM_PROCESSOR MATCHES CMAKE_SYSTEM_PROCESSOR
    AND CMAKE_HOST_SYSTEM_NAME MATCHES CMAKE_SYSTEM_NAME))
        string(TOLOWER "${CMAKE_SYSTEM_NAME}" FFmpeg_SYSTEM_NAME)
-        if (FFmpeg_SYSTEM_NAME STREQUAL "openorbis" OR FFmpeg_SYSTEM_NAME STREQUAL "managarm")
+        # All of these platforms are supported by ffmpeg as native build OSes
+        # anything else (like Redox or Managarm or PS4) is NOT natively supported
+        # hence, assume the "unix like" is just "none" for the sake of OUR sanity.
+        # If YOUR OS/platform has actual native support:
+        # 1. fucking congrats
+        # 2. feel free to add it on the condition below
+        if (NOT (NETBSD OR SOLARIS OR FREEBSD OR OPENBSD OR DRAGONFLYBSD OR HAIKU
+        OR LINUX OR MSYS OR WIN32 OR ANDROID OR APPLE))
            set(FFmpeg_SYSTEM_NAME "none")
        endif()
        # TODO: Can we really do better? Auto-detection? Something clever?
        list(APPEND FFmpeg_CROSS_COMPILE_FLAGS
            --enable-cross-compile
            --arch="${CMAKE_SYSTEM_PROCESSOR}"
-            --target-os="${FFmpeg_SYSTEM_NAME}"
-            --sysroot="${CMAKE_SYSROOT}"
-        )
+            --target-os="${FFmpeg_SYSTEM_NAME}")
+        # Emscripten doesn't use CMAKE_SYSROOT I'm afraid, but it does well use EMSCRIPTEN_SYSROOT
+        if (EMSCRIPTEN)
+            list(APPEND FFmpeg_CROSS_COMPILE_FLAGS --sysroot="${EMSCRIPTEN_SYSROOT}")
+        else()
+            list(APPEND FFmpeg_CROSS_COMPILE_FLAGS --sysroot="${CMAKE_SYSROOT}")
+        endif()
        if (DEFINED FFmpeg_CROSS_PREFIX)
            list(APPEND FFmpeg_CROSS_COMPILE_FLAGS --cross-prefix="${FFmpeg_CROSS_PREFIX}")
        else()
-            message(WARNING "Please set FFmpeg_CROSS_PREFIX to your cross toolchain prefix, for example: \${CMAKE_STAGING_PREFIX}/bin/${CMAKE_SYSTEM_PROCESSOR}-${CMAKE_SYSTEM_NAME}-")
+            message(WARNING "Please set FFmpeg_CROSS_PREFIX to your cross toolchain prefix, for example: ${CMAKE_STAGING_PREFIX}/bin/${CMAKE_SYSTEM_PROCESSOR}-${CMAKE_SYSTEM_NAME}")
        endif()
        set(FFmpeg_IS_CROSS_COMPILING TRUE)
    endif()
 endif()

-if (OPENORBIS OR MANAGARM)
+if (OPENORBIS OR MANAGARM OR EMSCRIPTEN)
    # Doesn't support VA-API, don't go thru the embarrassment of trying to enable it
    list(APPEND FFmpeg_HWACCEL_FLAGS --disable-vaapi)
 elseif (ANDROID)
@@ -162,8 +173,7 @@ if (OPENORBIS)
        -lSceUserService
        -lSceSysmodule
        -lSceNet
-        -lSceLibcInternal
-    )
+        -lSceLibcInternal)
    list(APPEND FFmpeg_CROSS_COMPILE_FLAGS
        --disable-pthreads
        --extra-cflags=${CMAKE_SYSROOT}/usr/include
@@ -174,8 +184,18 @@ elseif (MANAGARM)
    # Required for proper stuff
    list(APPEND FFmpeg_CROSS_COMPILE_FLAGS
        --disable-pthreads
-        --extra-libs="${FFmpeg_CROSS_COMPILE_LIBS}"
-    )
+        --extra-libs="${FFmpeg_CROSS_COMPILE_LIBS}")
+endif()
+
+# Usually used by Emscripten
+if (DEFINED CMAKE_AR)
+    list(APPEND FFmpeg_CROSS_COMPILE_FLAGS --ar=${CMAKE_AR})
+endif()
+if (DEFINED CMAKE_NM)
+    list(APPEND FFmpeg_CROSS_COMPILE_FLAGS --nm=${CMAKE_NM})
+endif()
+if (DEFINED CMAKE_RANLIB)
+    list(APPEND FFmpeg_CROSS_COMPILE_FLAGS --ranlib=${CMAKE_RANLIB})
 endif()

 if (YUZU_USE_BUNDLED_FFMPEG)
@@ -205,6 +225,7 @@ else()
    # Build FFmpeg from externals
    message(STATUS "Using FFmpeg from externals")

+    set(FFmpeg_LD ${CMAKE_LINKER})
    if (CMAKE_SYSTEM_PROCESSOR MATCHES "(x86_64|amd64)")
        # FFmpeg has source that requires one of nasm or yasm to assemble it.
        # REQUIRED throws an error if not found here during configuration rather than during compilation.
@@ -213,6 +234,12 @@ else()
            message(FATAL_ERROR "One of either `nasm` or `yasm` not found but is required.")
        endif()
    endif()
+    if (CMAKE_SYSTEM_NAME STREQUAL "Emscripten")
+        # TODO: this is 100% redundant but we need it because CMAKE_LINKER can resolve to ld.lld
+        # which is NOT compatible
+        find_program(EMCC NAMES emcc REQUIRED)
+        set(FFmpeg_LD ${EMCC})
+    endif()

    find_program(AUTOCONF autoconf)
    if ("${AUTOCONF}" STREQUAL "AUTOCONF-NOTFOUND")
@@ -246,7 +273,13 @@ else()
            CACHE PATH "Paths to FFmpeg libraries" FORCE)
    endforeach()

-    find_program(BASH_PROGRAM bash REQUIRED)
+    # Some SDKs (especially wasm) require us, actually, WANT us to use their "emconfigure"
+    # otherwise they will cry a billion tears
+    if (EMSCRIPTEN)
+        find_program(FFmpeg_CONFIGURE_WRAPPER emconfigure REQUIRED)
+    else()
+        find_program(FFmpeg_CONFIGURE_WRAPPER bash REQUIRED)
+    endif()

    # `configure` parameters builds only exactly what yuzu needs from FFmpeg
    # `--disable-vdpau` is needed to avoid linking issues
@@ -256,7 +289,7 @@ else()
        OUTPUT
            ${FFmpeg_MAKEFILE}
        COMMAND
-            ${BASH_PROGRAM} ${FFmpeg_PREFIX}/configure
+            ${FFmpeg_CONFIGURE_WRAPPER} ${FFmpeg_PREFIX}/configure
                --disable-avdevice
                --disable-avformat
                --disable-doc
@@ -265,6 +298,10 @@ else()
                --disable-ffprobe
                --disable-network
                --disable-swresample
+                --disable-autodetect
+                --disable-runtime-cpudetect
+                --disable-debug
+                --disable-programs
                --enable-decoder=h264
                --enable-decoder=vp8
                --enable-decoder=vp9
@@ -272,7 +309,7 @@ else()
                --enable-pic
                --cc=${FFmpeg_CC}
                --cxx=${FFmpeg_CXX}
-                --ld=${CMAKE_LINKER}
+                --ld=${FFmpeg_LD}
                --extra-cflags=${CMAKE_C_FLAGS}
                --extra-cxxflags=${CMAKE_CXX_FLAGS}
                --extra-ldflags=${CMAKE_C_LINK_FLAGS}
@@ -288,11 +325,7 @@ else()

    # Workaround for Ubuntu 18.04's older version of make not being able to call make as a child
    # with context of the jobserver. Also helps ninja users.
-    execute_process(
-        COMMAND
-            nproc
-        OUTPUT_VARIABLE
-            SYSTEM_THREADS)
+    cmake_host_system_information(RESULT SYSTEM_THREADS QUERY NUMBER_OF_LOGICAL_CORES)

    set(FFmpeg_BUILD_LIBRARIES ${FFmpeg_LIBRARIES})

@@ -300,6 +333,8 @@ else()
    if (LINUX OR ANDROID OR APPLE OR WIN32 OR FREEBSD)
        set(FFmpeg_MAKE_ARGS -j${SYSTEM_THREADS})
    else()
+        # No GNU make implies that this system may be highly non-GNU
+        find_program(MAKE make required)
        set(FFmpeg_MAKE_ARGS "")
    endif()

@@ -307,7 +342,7 @@ else()
        OUTPUT
            ${FFmpeg_BUILD_LIBRARIES}
        COMMAND
-            gmake ${FFmpeg_MAKE_ARGS}
+            ${MAKE} ${FFmpeg_MAKE_ARGS}
        WORKING_DIRECTORY
            ${FFmpeg_BUILD_DIR}
    )
@@ -14,7 +14,9 @@
 namespace Tz {

 namespace {
+#ifndef EINVAL
 #define EINVAL 22
+#endif

 static Rule gmtmem{};
 static Rule* const gmtptr = &gmtmem;
@@ -177,7 +177,6 @@ else()
        $<$<COMPILE_LANGUAGE:C,CXX>:-Wno-invalid-offsetof>
        $<$<COMPILE_LANGUAGE:C,CXX>:-Wno-unused-parameter>
        $<$<COMPILE_LANGUAGE:C,CXX>:-Wno-missing-field-initializers>)
-
    if (CXX_CLANG OR CXX_ICC OR CXX_APPLE) # Clang, AppleClang, or Intel C++
        if (NOT MSVC)
            add_compile_options(
@@ -191,7 +190,11 @@ else()
            $<$<COMPILE_LANGUAGE:C,CXX>:-Wno-nullability-completeness>)
    endif()

-    if (ARCHITECTURE_x86_64)
+    if (ARCHITECTURE_wasm)
+        # we are evil but fmt is even more evil
+        add_compile_options(
+            $<$<COMPILE_LANGUAGE:C,CXX>:-Wno-shorten-64-to-32>)
+    elseif (ARCHITECTURE_x86_64)
        add_compile_options($<$<COMPILE_LANGUAGE:C,CXX>:-mcx16>)
        if (LINUX OR FREEBSD)
            add_compile_options($<$<COMPILE_LANGUAGE:C,CXX>:-mtls-dialect=gnu2>)
@@ -272,13 +272,6 @@ android {
        resValue("string", "app_name_suffixed", "$currentName$suffix")
        resValue("string", "app_name", "Eden$suffix")
    }
-
-    sourceSets {
-        named("main") {
-            java.srcDir("${edenDir}/externals/generated/sdl/java")
-            kotlin.srcDir("${edenDir}/externals/generated/sdl/java")
-        }
-    }
 }

 idea {
@@ -9,9 +9,6 @@
 -keep class org.ini4j.spi.IniBuilder
 -keep class org.ini4j.spi.IniFormatter

-keep class org.libsdl.app.** { *; }
-keepclassmembers class org.libsdl.app.** { *; }
-
 # Suppress warnings for R8
 -dontwarn org.bouncycastle.jsse.BCSSLParameters
 -dontwarn org.bouncycastle.jsse.BCSSLSocket
@@ -16,7 +16,6 @@ import android.widget.TextView
 import androidx.annotation.Keep
 import androidx.core.net.toUri
 import com.google.android.material.dialog.MaterialAlertDialogBuilder
-import org.libsdl.app.SDL
 import java.lang.ref.WeakReference
 import org.yuzu.yuzu_emu.activities.EmulationActivity
 import org.yuzu.yuzu_emu.fragments.CoreErrorDialogFragment
@@ -53,8 +52,6 @@ object NativeLibrary {
    init {
        try {
            System.loadLibrary("yuzu-android")
-            SDL.setupJNI()
-            initJvm()
        } catch (ex: UnsatisfiedLinkError) {
            error("[NativeLibrary] $ex")
        }
@@ -370,7 +367,6 @@ object NativeLibrary {
        NetPlayManager.clearChat()
    }

-    external fun initJvm()
    external fun initMultiplayer()

    @Keep
@@ -22,7 +22,7 @@ add_library(yuzu-android SHARED
 set_property(TARGET yuzu-android PROPERTY IMPORTED_LOCATION ${FFmpeg_LIBRARY_DIR})

 target_link_libraries(yuzu-android PRIVATE audio_core common core input_common frontend_common video_core)
-target_link_libraries(yuzu-android PRIVATE android camera2ndk EGL glad jnigraphics log GLESv2)
+target_link_libraries(yuzu-android PRIVATE android camera2ndk EGL glad jnigraphics log)
 if (ARCHITECTURE_arm64)
    target_link_libraries(yuzu-android PRIVATE adrenotools)
 endif()
@@ -1730,15 +1730,6 @@ jint Java_org_yuzu_yuzu_1emu_NativeLibrary_loadAmiibo(JNIEnv* env, jobject jobj,
    return static_cast<jint>(info);
 }

-extern "C" JNIEXPORT void JNICALL
-Java_org_yuzu_yuzu_1emu_NativeLibrary_initJvm(JNIEnv *env, jclass clazz) {
-    JavaVM *vm;
-    if (env->GetJavaVM(&vm) != JNI_OK)
-        return;
-
-    Common::Android::Initialize(vm, env);
-}
-
 JNIEXPORT void JNICALL
 Java_org_yuzu_yuzu_1emu_NativeLibrary_initMultiplayer(
        JNIEnv* env, [[maybe_unused]] jobject obj) {
@@ -800,6 +800,7 @@
    <string name="theme_mode_dark">تاریک</string>

    <!-- Audio output engines -->
+    <string name="oboe">oboe</string>
    <string name="cubeb">cubeb</string>

    <!-- Anisotropic filtering options -->
@@ -465,13 +465,13 @@

    <string-array name="outputEngineEntries">
        <item>@string/auto</item>
-        <item>@string/sdl3</item>
+        <item>@string/oboe</item>
        <item>@string/cubeb</item>
        <item>@string/string_null</item>
    </string-array>
    <integer-array name="outputEngineValues">
        <item>0</item>
-        <item>2</item>
+        <item>4</item>
        <item>1</item>
        <item>3</item>
    </integer-array>
@@ -1240,7 +1240,7 @@
    <string name="theme_mode_dark">Dark</string>

    <!-- Audio output engines -->
-    <string name="sdl3" translatable="false">SDL3</string>
+    <string name="oboe" translatable="false">oboe</string>
    <string name="cubeb" translatable="false">cubeb</string>

    <!-- Anisotropic filtering options -->
@@ -238,11 +238,20 @@ if (ENABLE_CUBEB)
    target_compile_definitions(audio_core PRIVATE HAVE_CUBEB=1)
 endif()

-target_sources(audio_core PRIVATE
-    sink/sdl3_sink.cpp
-    sink/sdl3_sink.h)
+if(ANDROID)
+    target_sources(audio_core PRIVATE
+        sink/oboe_sink.cpp
+        sink/oboe_sink.h)

-target_link_libraries(audio_core PRIVATE SDL3::SDL3)
-target_compile_definitions(audio_core PRIVATE HAVE_SDL3)
+    target_link_libraries(audio_core PRIVATE oboe)
+    target_compile_definitions(audio_core PUBLIC HAVE_OBOE)
+else()
+    target_sources(audio_core PRIVATE
+        sink/sdl3_sink.cpp
+        sink/sdl3_sink.h)
+
+    target_link_libraries(audio_core PRIVATE SDL3::SDL3)
+    target_compile_definitions(audio_core PRIVATE HAVE_SDL3)
+endif()

 create_target_directory_groups(audio_core)
@@ -0,0 +1,230 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <span>
+#include <vector>
+
+#include <oboe/Oboe.h>
+
+#include "audio_core/common/common.h"
+#include "audio_core/sink/oboe_sink.h"
+#include "audio_core/sink/sink_stream.h"
+#include "common/logging.h"
+#include "common/scope_exit.h"
+#include "core/core.h"
+
+namespace AudioCore::Sink {
+
+class OboeSinkStream final : public SinkStream,
+                             public oboe::AudioStreamDataCallback,
+                             public oboe::AudioStreamErrorCallback {
+public:
+    explicit OboeSinkStream(Core::System& system_, StreamType type_, const std::string& name_,
+                            u32 system_channels_)
+        : SinkStream(system_, type_) {
+        name = name_;
+        system_channels = system_channels_;
+
+        this->OpenStream();
+    }
+
+    ~OboeSinkStream() override {
+        LOG_INFO(Audio_Sink, "Destroyed Oboe stream");
+    }
+
+    void Finalize() override {
+        this->Stop();
+        m_stream.reset();
+    }
+
+    void Start(bool resume = false) override {
+        if (!m_stream || !paused) {
+            return;
+        }
+
+        paused = false;
+
+        if (m_stream->start() != oboe::Result::OK) {
+            LOG_CRITICAL(Audio_Sink, "Error starting Oboe stream");
+        }
+    }
+
+    void Stop() override {
+        if (!m_stream || paused) {
+            return;
+        }
+
+        this->SignalPause();
+
+        if (m_stream->stop() != oboe::Result::OK) {
+            LOG_CRITICAL(Audio_Sink, "Error stopping Oboe stream");
+        }
+    }
+
+public:
+    static s32 QueryChannelCount(oboe::Direction direction) {
+        std::shared_ptr<oboe::AudioStream> temp_stream;
+        oboe::AudioStreamBuilder builder;
+
+        const auto result = ConfigureBuilder(builder, direction)->openStream(temp_stream);
+        if (result == oboe::Result::OK) {
+            return temp_stream->getChannelCount() >= 6 ? 6 : 2;
+        }
+
+        LOG_ERROR(Audio_Sink, "Failed to open {} stream. Using default channel count 2",
+                  direction == oboe::Direction::Output ? "output" : "input");
+        return 2;
+    }
+
+protected:
+    oboe::DataCallbackResult onAudioReady(oboe::AudioStream*, void* audio_data,
+                                          s32 num_buffer_frames) override {
+        const size_t num_channels = this->GetDeviceChannels();
+        const size_t frame_size = num_channels;
+        const size_t num_frames = static_cast<size_t>(num_buffer_frames);
+
+        if (type == StreamType::In) {
+            std::span<const s16> input_buffer{reinterpret_cast<const s16*>(audio_data),
+                                              num_frames * frame_size};
+            this->ProcessAudioIn(input_buffer, num_frames);
+        } else {
+            std::span<s16> output_buffer{reinterpret_cast<s16*>(audio_data),
+                                         num_frames * frame_size};
+            this->ProcessAudioOutAndRender(output_buffer, num_frames);
+        }
+
+        return oboe::DataCallbackResult::Continue;
+    }
+
+    void onErrorAfterClose(oboe::AudioStream*, oboe::Result) override {
+        LOG_INFO(Audio_Sink, "Audio stream closed, reinitializing");
+
+        if (this->OpenStream()) {
+            m_stream->start();
+        }
+    }
+
+private:
+    static oboe::AudioStreamBuilder* ConfigureBuilder(oboe::AudioStreamBuilder& builder,
+                                                      oboe::Direction direction) {
+        // TODO: investigate callback delay issues when using AAudio
+        return builder.setPerformanceMode(oboe::PerformanceMode::LowLatency)
+            ->setAudioApi(oboe::AudioApi::OpenSLES)
+            ->setDirection(direction)
+            ->setSampleRate(TargetSampleRate)
+            ->setSampleRateConversionQuality(oboe::SampleRateConversionQuality::High)
+            ->setFormat(oboe::AudioFormat::I16)
+            ->setFormatConversionAllowed(true)
+            ->setUsage(oboe::Usage::Game)
+            ->setBufferCapacityInFrames(TargetSampleCount * 2);
+    }
+
+    bool OpenStream() {
+        const auto direction = [&]() {
+            switch (type) {
+            case StreamType::In:
+                return oboe::Direction::Input;
+            case StreamType::Out:
+            case StreamType::Render:
+                return oboe::Direction::Output;
+            default:
+                ASSERT(false);
+                return oboe::Direction::Output;
+            }
+        }();
+
+        const auto expected_channels = QueryChannelCount(direction);
+        const auto expected_mask = [&]() {
+            switch (expected_channels) {
+            case 1:
+                return oboe::ChannelMask::Mono;
+            case 2:
+                return oboe::ChannelMask::Stereo;
+            case 6:
+                return oboe::ChannelMask::CM5Point1;
+            default:
+                ASSERT(false);
+                return oboe::ChannelMask::Unspecified;
+            }
+        }();
+
+        oboe::AudioStreamBuilder builder;
+        const auto result = ConfigureBuilder(builder, direction)
+                                ->setChannelCount(expected_channels)
+                                ->setChannelMask(expected_mask)
+                                ->setChannelConversionAllowed(true)
+                                ->setDataCallback(this)
+                                ->setErrorCallback(this)
+                                ->openStream(m_stream);
+        ASSERT(result == oboe::Result::OK);
+        return result == oboe::Result::OK && this->SetStreamProperties();
+    }
+
+    bool SetStreamProperties() {
+        ASSERT(m_stream);
+
+        m_stream->setBufferSizeInFrames(TargetSampleCount * 2);
+        device_channels = m_stream->getChannelCount();
+
+        const auto sample_rate = m_stream->getSampleRate();
+        const auto buffer_capacity = m_stream->getBufferCapacityInFrames();
+        const auto stream_backend =
+            m_stream->getAudioApi() == oboe::AudioApi::AAudio ? "AAudio" : "OpenSLES";
+
+        LOG_INFO(Audio_Sink, "Opened Oboe {} stream with {} channels sample rate {} capacity {}",
+                 stream_backend, device_channels, sample_rate, buffer_capacity);
+
+        return true;
+    }
+
+    std::shared_ptr<oboe::AudioStream> m_stream{};
+};
+
+OboeSink::OboeSink() {
+    // TODO: This is not generally knowable
+    // The channel count is distinct based on direction and can change
+    device_channels = OboeSinkStream::QueryChannelCount(oboe::Direction::Output);
+}
+
+OboeSink::~OboeSink() = default;
+
+SinkStream* OboeSink::AcquireSinkStream(Core::System& system, u32 system_channels,
+                                        const std::string& name, StreamType type) {
+    SinkStreamPtr& stream = sink_streams.emplace_back(
+        std::make_unique<OboeSinkStream>(system, type, name, system_channels));
+
+    return stream.get();
+}
+
+void OboeSink::CloseStream(SinkStream* to_remove) {
+    sink_streams.remove_if([&](auto& stream) { return stream.get() == to_remove; });
+}
+
+void OboeSink::CloseStreams() {
+    sink_streams.clear();
+}
+
+f32 OboeSink::GetDeviceVolume() const {
+    if (sink_streams.empty()) {
+        return 1.0f;
+    }
+
+    return sink_streams.front()->GetDeviceVolume();
+}
+
+void OboeSink::SetDeviceVolume(f32 volume) {
+    for (auto& stream : sink_streams) {
+        stream->SetDeviceVolume(volume);
+    }
+}
+
+void OboeSink::SetSystemVolume(f32 volume) {
+    for (auto& stream : sink_streams) {
+        stream->SetSystemVolume(volume);
+    }
+}
+
+} // namespace AudioCore::Sink
@@ -0,0 +1,75 @@
+// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <list>
+#include <string>
+
+#include "audio_core/sink/sink.h"
+
+namespace Core {
+class System;
+}
+
+namespace AudioCore::Sink {
+class SinkStream;
+
+class OboeSink final : public Sink {
+public:
+    explicit OboeSink();
+    ~OboeSink() override;
+
+    /**
+     * Create a new sink stream.
+     *
+     * @param system          - Core system.
+     * @param system_channels - Number of channels the audio system expects.
+     *                          May differ from the device's channel count.
+     * @param name            - Name of this stream.
+     * @param type            - Type of this stream, render/in/out.
+     *
+     * @return A pointer to the created SinkStream
+     */
+    SinkStream* AcquireSinkStream(Core::System& system, u32 system_channels,
+                                  const std::string& name, StreamType type) override;
+
+    /**
+     * Close a given stream.
+     *
+     * @param stream - The stream to close.
+     */
+    void CloseStream(SinkStream* stream) override;
+
+    /**
+     * Close all streams.
+     */
+    void CloseStreams() override;
+
+    /**
+     * Get the device volume. Set from calls to the IAudioDevice service.
+     *
+     * @return Volume of the device.
+     */
+    f32 GetDeviceVolume() const override;
+
+    /**
+     * Set the device volume. Set from calls to the IAudioDevice service.
+     *
+     * @param volume - New volume of the device.
+     */
+    void SetDeviceVolume(f32 volume) override;
+
+    /**
+     * Set the system volume. Comes from the audio system using this stream.
+     *
+     * @param volume - New volume of the system.
+     */
+    void SetSystemVolume(f32 volume) override;
+
+private:
+    /// List of streams managed by this sink
+    std::list<SinkStreamPtr> sink_streams{};
+};
+
+} // namespace AudioCore::Sink
@@ -10,6 +10,9 @@
 #include <vector>

 #include "audio_core/sink/sink_details.h"
+#ifdef HAVE_OBOE
+#include "audio_core/sink/oboe_sink.h"
+#endif
 #ifdef HAVE_CUBEB
 #include "audio_core/sink/cubeb_sink.h"
 #endif
@@ -40,8 +43,24 @@ struct SinkDetails {
    /// SuitableFn is_suitable; // REVERTED FOR LatencyFn latency ABOVE - DIABLO 3 FIX
 };

+// NOTE TO PROBABLY FIX LATER FOR ANDROID - the return value "0u" for the first HAVE_OBOE
+// section below was just copied from the null section so there's a somewhat valid value
+// being returned, since the previous "true" value probably isn't compatible with the
+// previous EA-3833 code. (HAVE_OBOE was introduced in a later release.) Eventually need
+// to change "0u" for something else directly from the oboe_sink.cpp functions.
+
 // sink_details is ordered in terms of desirability, with the best choice at the top.
 constexpr SinkDetails sink_details[] = {
+#ifdef HAVE_OBOE
+    SinkDetails{
+        Settings::AudioEngine::Oboe,
+        [](std::string_view device_id) -> std::unique_ptr<Sink> {
+            return std::make_unique<OboeSink>();
+        },
+        [](bool capture) { return std::vector<std::string>{"Default"}; },
+        []() { return 0u; },
+    },
+#endif
 #ifdef HAVE_CUBEB
    SinkDetails{
        Settings::AudioEngine::Cubeb,
@@ -236,7 +236,11 @@ else()
    target_link_libraries(common PUBLIC Boost::headers)
 endif()
 target_link_libraries(common PRIVATE OpenSSL::SSL)
-target_link_libraries(common PUBLIC Boost::filesystem Boost::context httplib::httplib nlohmann_json::nlohmann_json)
+target_link_libraries(common PUBLIC Boost::filesystem httplib::httplib nlohmann_json::nlohmann_json)
+if (NOT EMSCRIPTEN)
+    # Emscripten is: "bring your own implementation", boost doesn't add upstream support sadly
+    target_link_libraries(common PRIVATE Boost::context)
+endif()

 if (lz4_ADDED)
    target_include_directories(common PRIVATE ${lz4_SOURCE_DIR}/lib)
@@ -1,7 +1,7 @@
 // SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later

-// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-FileCopyrightText: 2025 Eden Emulator Project
 // SPDX-License-Identifier: GPL-3.0-or-later

 #include "android_common.h"
@@ -51,7 +51,7 @@ jstring ToJString(JNIEnv* env, std::u16string_view str) {
 }

 double GetJDouble(JNIEnv* env, jobject jdouble) {
-    return env->CallDoubleMethod(jdouble, GetDoubleValueMethod());
+    return env->GetDoubleField(jdouble, GetDoubleValueField());
 }

 jobject ToJDouble(JNIEnv* env, double value) {
@@ -59,7 +59,7 @@ jobject ToJDouble(JNIEnv* env, double value) {
 }

 s32 GetJInteger(JNIEnv* env, jobject jinteger) {
-    return env->CallIntMethod(jinteger, GetIntegerValueMethod());
+    return env->GetIntField(jinteger, GetIntegerValueField());
 }

 jobject ToJInteger(JNIEnv* env, s32 value) {
@@ -67,7 +67,7 @@ jobject ToJInteger(JNIEnv* env, s32 value) {
 }

 bool GetJBoolean(JNIEnv* env, jobject jboolean) {
-    return env->CallBooleanMethod(jboolean, GetBooleanValueMethod());
+    return env->GetBooleanField(jboolean, GetBooleanValueField());
 }

 jobject ToJBoolean(JNIEnv* env, bool value) {
@@ -63,15 +63,15 @@ static jfieldID s_patch_title_id_field;

 static jclass s_double_class;
 static jmethodID s_double_constructor;
-static jmethodID s_double_value_method;
+static jfieldID s_double_value_field;

 static jclass s_integer_class;
 static jmethodID s_integer_constructor;
-static jmethodID s_integer_value_method;
+static jfieldID s_integer_value_field;

 static jclass s_boolean_class;
 static jmethodID s_boolean_constructor;
-static jmethodID s_boolean_value_method;
+static jfieldID s_boolean_value_field;

 static jclass s_player_input_class;
 static jmethodID s_player_input_constructor;
@@ -103,6 +103,7 @@ static jmethodID s_clear_chat;
 static constexpr jint JNI_VERSION = JNI_VERSION_1_6;

 namespace Common::Android {
+
    JNIEnv *GetEnvForThread() {
        thread_local static struct OwnedEnv {
            OwnedEnv() {
@@ -298,8 +299,8 @@ namespace Common::Android {
        return s_double_constructor;
    }

-    jmethodID GetDoubleValueMethod() {
-        return s_double_value_method;
+    jfieldID GetDoubleValueField() {
+        return s_double_value_field;
    }

    jclass GetIntegerClass() {
@@ -310,8 +311,8 @@ namespace Common::Android {
        return s_integer_constructor;
    }

-    jmethodID GetIntegerValueMethod() {
-        return s_integer_value_method;
+    jfieldID GetIntegerValueField() {
+        return s_integer_value_field;
    }

    jclass GetBooleanClass() {
@@ -322,8 +323,8 @@ namespace Common::Android {
        return s_boolean_constructor;
    }

-    jmethodID GetBooleanValueMethod() {
-        return s_boolean_value_method;
+    jfieldID GetBooleanValueField() {
+        return s_boolean_value_field;
    }

    jclass GetPlayerInputClass() {
@@ -428,6 +429,188 @@ namespace Common::Android {

    jint InitFFmpegOnLoad(JavaVM *vm);

+    jint JNI_OnLoad(JavaVM *vm, void *reserved) {
+        s_java_vm = vm;
+        InitFFmpegOnLoad(vm);
+
+        JNIEnv *env;
+        if (vm->GetEnv(reinterpret_cast<void **>(&env), JNI_VERSION) != JNI_OK)
+            return JNI_ERR;
+
+        // Initialize Java classes
+        const jclass native_library_class = env->FindClass("org/yuzu/yuzu_emu/NativeLibrary");
+        s_native_library_class = reinterpret_cast<jclass>(env->NewGlobalRef(native_library_class));
+        s_disk_cache_progress_class = reinterpret_cast<jclass>(env->NewGlobalRef(
+                env->FindClass("org/yuzu/yuzu_emu/disk_shader_cache/DiskShaderCacheProgress")));
+        s_load_callback_stage_class = reinterpret_cast<jclass>(env->NewGlobalRef(env->FindClass(
+                "org/yuzu/yuzu_emu/disk_shader_cache/DiskShaderCacheProgress$LoadCallbackStage")));
+
+        const jclass game_dir_class = env->FindClass("org/yuzu/yuzu_emu/model/GameDir");
+        s_game_dir_class = reinterpret_cast<jclass>(env->NewGlobalRef(game_dir_class));
+        s_game_dir_constructor = env->GetMethodID(game_dir_class, "<init>",
+                                                  "(Ljava/lang/String;Z)V");
+        env->DeleteLocalRef(game_dir_class);
+
+        // Initialize methods
+        s_exit_emulation_activity =
+                env->GetStaticMethodID(s_native_library_class, "exitEmulationActivity", "(I)V");
+        s_disk_cache_load_progress =
+                env->GetStaticMethodID(s_disk_cache_progress_class, "loadProgress", "(III)V");
+        s_copy_to_storage = env->GetStaticMethodID(s_native_library_class, "copyFileToStorage",
+                                                   "(Ljava/lang/String;Ljava/lang/String;)Z");
+        s_file_exists = env->GetStaticMethodID(s_native_library_class, "exists",
+                                               "(Ljava/lang/String;)Z");
+        s_file_extension = env->GetStaticMethodID(s_native_library_class, "getFileExtension",
+                                               "(Ljava/lang/String;)Ljava/lang/String;");
+        s_on_emulation_started =
+                env->GetStaticMethodID(s_native_library_class, "onEmulationStarted", "()V");
+        s_on_emulation_stopped =
+                env->GetStaticMethodID(s_native_library_class, "onEmulationStopped", "(I)V");
+        s_on_program_changed =
+                env->GetStaticMethodID(s_native_library_class, "onProgramChanged", "(I)V");
+
+        const jclass game_class = env->FindClass("org/yuzu/yuzu_emu/model/Game");
+        s_game_class = reinterpret_cast<jclass>(env->NewGlobalRef(game_class));
+        s_game_constructor = env->GetMethodID(game_class, "<init>",
+                                              "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/"
+                                              "String;Ljava/lang/String;Ljava/lang/String;Z)V");
+        s_game_title_field = env->GetFieldID(game_class, "title", "Ljava/lang/String;");
+        s_game_path_field = env->GetFieldID(game_class, "path", "Ljava/lang/String;");
+        s_game_program_id_field = env->GetFieldID(game_class, "programId", "Ljava/lang/String;");
+        s_game_developer_field = env->GetFieldID(game_class, "developer", "Ljava/lang/String;");
+        s_game_version_field = env->GetFieldID(game_class, "version", "Ljava/lang/String;");
+        s_game_is_homebrew_field = env->GetFieldID(game_class, "isHomebrew", "Z");
+        env->DeleteLocalRef(game_class);
+
+        const jclass string_class = env->FindClass("java/lang/String");
+        s_string_class = reinterpret_cast<jclass>(env->NewGlobalRef(string_class));
+        env->DeleteLocalRef(string_class);
+
+        const jclass pair_class = env->FindClass("kotlin/Pair");
+        s_pair_class = reinterpret_cast<jclass>(env->NewGlobalRef(pair_class));
+        s_pair_constructor =
+                env->GetMethodID(pair_class, "<init>", "(Ljava/lang/Object;Ljava/lang/Object;)V");
+        s_pair_first_field = env->GetFieldID(pair_class, "first", "Ljava/lang/Object;");
+        s_pair_second_field = env->GetFieldID(pair_class, "second", "Ljava/lang/Object;");
+        env->DeleteLocalRef(pair_class);
+
+        const jclass overlay_control_data_class =
+                env->FindClass("org/yuzu/yuzu_emu/overlay/model/OverlayControlData");
+        s_overlay_control_data_class =
+                reinterpret_cast<jclass>(env->NewGlobalRef(overlay_control_data_class));
+        s_overlay_control_data_constructor =
+                env->GetMethodID(overlay_control_data_class, "<init>",
+                                 "(Ljava/lang/String;ZLkotlin/Pair;Lkotlin/Pair;Lkotlin/Pair;F)V");
+        s_overlay_control_data_id_field =
+                env->GetFieldID(overlay_control_data_class, "id", "Ljava/lang/String;");
+        s_overlay_control_data_enabled_field =
+                env->GetFieldID(overlay_control_data_class, "enabled", "Z");
+        s_overlay_control_data_landscape_position_field =
+                env->GetFieldID(overlay_control_data_class, "landscapePosition", "Lkotlin/Pair;");
+        s_overlay_control_data_portrait_position_field =
+                env->GetFieldID(overlay_control_data_class, "portraitPosition", "Lkotlin/Pair;");
+        s_overlay_control_data_foldable_position_field =
+                env->GetFieldID(overlay_control_data_class, "foldablePosition", "Lkotlin/Pair;");
+        s_overlay_control_data_individual_scale_field =
+                env->GetFieldID(overlay_control_data_class, "individualScale", "F");
+        env->DeleteLocalRef(overlay_control_data_class);
+
+        const jclass patch_class = env->FindClass("org/yuzu/yuzu_emu/model/Patch");
+        s_patch_class = reinterpret_cast<jclass>(env->NewGlobalRef(patch_class));
+        s_patch_constructor = env->GetMethodID(
+                patch_class, "<init>",
+                "(ZLjava/lang/String;Ljava/lang/String;ILjava/lang/String;Ljava/lang/String;JI)V");
+        s_patch_enabled_field = env->GetFieldID(patch_class, "enabled", "Z");
+        s_patch_name_field = env->GetFieldID(patch_class, "name", "Ljava/lang/String;");
+        s_patch_version_field = env->GetFieldID(patch_class, "version", "Ljava/lang/String;");
+        s_patch_type_field = env->GetFieldID(patch_class, "type", "I");
+        s_patch_program_id_field = env->GetFieldID(patch_class, "programId", "Ljava/lang/String;");
+        s_patch_title_id_field = env->GetFieldID(patch_class, "titleId", "Ljava/lang/String;");
+        env->DeleteLocalRef(patch_class);
+
+        const jclass double_class = env->FindClass("java/lang/Double");
+        s_double_class = reinterpret_cast<jclass>(env->NewGlobalRef(double_class));
+        s_double_constructor = env->GetMethodID(double_class, "<init>", "(D)V");
+        s_double_value_field = env->GetFieldID(double_class, "value", "D");
+        env->DeleteLocalRef(double_class);
+
+        const jclass int_class = env->FindClass("java/lang/Integer");
+        s_integer_class = reinterpret_cast<jclass>(env->NewGlobalRef(int_class));
+        s_integer_constructor = env->GetMethodID(int_class, "<init>", "(I)V");
+        s_integer_value_field = env->GetFieldID(int_class, "value", "I");
+        env->DeleteLocalRef(int_class);
+
+        const jclass boolean_class = env->FindClass("java/lang/Boolean");
+        s_boolean_class = reinterpret_cast<jclass>(env->NewGlobalRef(boolean_class));
+        s_boolean_constructor = env->GetMethodID(boolean_class, "<init>", "(Z)V");
+        s_boolean_value_field = env->GetFieldID(boolean_class, "value", "Z");
+        env->DeleteLocalRef(boolean_class);
+
+        const jclass player_input_class =
+                env->FindClass("org/yuzu/yuzu_emu/features/input/model/PlayerInput");
+        s_player_input_class = reinterpret_cast<jclass>(env->NewGlobalRef(player_input_class));
+        s_player_input_constructor = env->GetMethodID(
+                player_input_class, "<init>",
+                "(Z[Ljava/lang/String;[Ljava/lang/String;[Ljava/lang/String;ZIJJJJLjava/lang/String;Z)V");
+        s_player_input_connected_field = env->GetFieldID(player_input_class, "connected", "Z");
+        s_player_input_buttons_field =
+                env->GetFieldID(player_input_class, "buttons", "[Ljava/lang/String;");
+        s_player_input_analogs_field =
+                env->GetFieldID(player_input_class, "analogs", "[Ljava/lang/String;");
+        s_player_input_motions_field =
+                env->GetFieldID(player_input_class, "motions", "[Ljava/lang/String;");
+        s_player_input_vibration_enabled_field =
+                env->GetFieldID(player_input_class, "vibrationEnabled", "Z");
+        s_player_input_vibration_strength_field =
+                env->GetFieldID(player_input_class, "vibrationStrength", "I");
+        s_player_input_body_color_left_field =
+                env->GetFieldID(player_input_class, "bodyColorLeft", "J");
+        s_player_input_body_color_right_field =
+                env->GetFieldID(player_input_class, "bodyColorRight", "J");
+        s_player_input_button_color_left_field =
+                env->GetFieldID(player_input_class, "buttonColorLeft", "J");
+        s_player_input_button_color_right_field =
+                env->GetFieldID(player_input_class, "buttonColorRight", "J");
+        s_player_input_profile_name_field =
+                env->GetFieldID(player_input_class, "profileName", "Ljava/lang/String;");
+        s_player_input_use_system_vibrator_field =
+                env->GetFieldID(player_input_class, "useSystemVibrator", "Z");
+        env->DeleteLocalRef(player_input_class);
+
+        const jclass yuzu_input_device_interface =
+                env->FindClass("org/yuzu/yuzu_emu/features/input/YuzuInputDevice");
+        s_yuzu_input_device_interface =
+                reinterpret_cast<jclass>(env->NewGlobalRef(yuzu_input_device_interface));
+        s_yuzu_input_device_get_name =
+                env->GetMethodID(yuzu_input_device_interface, "getName", "()Ljava/lang/String;");
+        s_yuzu_input_device_get_guid =
+                env->GetMethodID(yuzu_input_device_interface, "getGUID", "()Ljava/lang/String;");
+        s_yuzu_input_device_get_port = env->GetMethodID(yuzu_input_device_interface, "getPort",
+                                                        "()I");
+        s_yuzu_input_device_get_supports_vibration =
+                env->GetMethodID(yuzu_input_device_interface, "getSupportsVibration", "()Z");
+        s_yuzu_input_device_vibrate = env->GetMethodID(yuzu_input_device_interface, "vibrate",
+                                                       "(F)V");
+        s_yuzu_input_device_get_axes =
+                env->GetMethodID(yuzu_input_device_interface, "getAxes", "()[Ljava/lang/Integer;");
+        s_yuzu_input_device_has_keys =
+                env->GetMethodID(yuzu_input_device_interface, "hasKeys", "([I)[Z");
+        env->DeleteLocalRef(yuzu_input_device_interface);
+        s_add_netplay_message = env->GetStaticMethodID(s_native_library_class, "addNetPlayMessage",
+                                                       "(ILjava/lang/String;)V");
+        s_clear_chat = env->GetStaticMethodID(s_native_library_class, "clearChat", "()V");
+
+
+        // Initialize Android Storage
+        Common::FS::Android::RegisterCallbacks(env, s_native_library_class);
+
+        // Initialize applets
+        Common::Android::SoftwareKeyboard::InitJNI(env);
+        Common::Android::WebBrowser::InitJNI(env);
+
+        return JNI_VERSION;
+    }
+
    void JNI_OnUnload(JavaVM *vm, void *reserved) {
        JNIEnv *env;
        if (vm->GetEnv(reinterpret_cast<void **>(&env), JNI_VERSION) != JNI_OK) {
@@ -462,183 +645,4 @@ namespace Common::Android {
    }
 #endif

-void Initialize(JavaVM* vm, JNIEnv *env) {
-    s_java_vm = vm;
-    InitFFmpegOnLoad(vm);
-
-    if (env->ExceptionCheck()) {
-        env->ExceptionClear();
-    }
-
-    // Initialize Java classes
-    const jclass native_library_class = env->FindClass("org/yuzu/yuzu_emu/NativeLibrary");
-    s_native_library_class = reinterpret_cast<jclass>(env->NewGlobalRef(native_library_class));
-    s_disk_cache_progress_class = reinterpret_cast<jclass>(env->NewGlobalRef(
-        env->FindClass("org/yuzu/yuzu_emu/disk_shader_cache/DiskShaderCacheProgress")));
-    s_load_callback_stage_class = reinterpret_cast<jclass>(env->NewGlobalRef(env->FindClass(
-        "org/yuzu/yuzu_emu/disk_shader_cache/DiskShaderCacheProgress$LoadCallbackStage")));
-
-    const jclass game_dir_class = env->FindClass("org/yuzu/yuzu_emu/model/GameDir");
-    s_game_dir_class = reinterpret_cast<jclass>(env->NewGlobalRef(game_dir_class));
-    s_game_dir_constructor = env->GetMethodID(game_dir_class, "<init>",
-                                              "(Ljava/lang/String;Z)V");
-    env->DeleteLocalRef(game_dir_class);
-
-    // Initialize methods
-    s_exit_emulation_activity =
-        env->GetStaticMethodID(s_native_library_class, "exitEmulationActivity", "(I)V");
-    s_disk_cache_load_progress =
-        env->GetStaticMethodID(s_disk_cache_progress_class, "loadProgress", "(III)V");
-    s_copy_to_storage = env->GetStaticMethodID(s_native_library_class, "copyFileToStorage",
-                                               "(Ljava/lang/String;Ljava/lang/String;)Z");
-    s_file_exists = env->GetStaticMethodID(s_native_library_class, "exists",
-                                           "(Ljava/lang/String;)Z");
-    s_file_extension = env->GetStaticMethodID(s_native_library_class, "getFileExtension",
-                                              "(Ljava/lang/String;)Ljava/lang/String;");
-    s_on_emulation_started =
-        env->GetStaticMethodID(s_native_library_class, "onEmulationStarted", "()V");
-    s_on_emulation_stopped =
-        env->GetStaticMethodID(s_native_library_class, "onEmulationStopped", "(I)V");
-    s_on_program_changed =
-        env->GetStaticMethodID(s_native_library_class, "onProgramChanged", "(I)V");
-
-    const jclass game_class = env->FindClass("org/yuzu/yuzu_emu/model/Game");
-    s_game_class = reinterpret_cast<jclass>(env->NewGlobalRef(game_class));
-    s_game_constructor = env->GetMethodID(game_class, "<init>",
-                                          "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/"
-                                          "String;Ljava/lang/String;Ljava/lang/String;Z)V");
-    s_game_title_field = env->GetFieldID(game_class, "title", "Ljava/lang/String;");
-    s_game_path_field = env->GetFieldID(game_class, "path", "Ljava/lang/String;");
-    s_game_program_id_field = env->GetFieldID(game_class, "programId", "Ljava/lang/String;");
-    s_game_developer_field = env->GetFieldID(game_class, "developer", "Ljava/lang/String;");
-    s_game_version_field = env->GetFieldID(game_class, "version", "Ljava/lang/String;");
-    s_game_is_homebrew_field = env->GetFieldID(game_class, "isHomebrew", "Z");
-    env->DeleteLocalRef(game_class);
-
-    const jclass string_class = env->FindClass("java/lang/String");
-    s_string_class = reinterpret_cast<jclass>(env->NewGlobalRef(string_class));
-    env->DeleteLocalRef(string_class);
-
-    const jclass pair_class = env->FindClass("kotlin/Pair");
-    s_pair_class = reinterpret_cast<jclass>(env->NewGlobalRef(pair_class));
-    s_pair_constructor =
-        env->GetMethodID(pair_class, "<init>", "(Ljava/lang/Object;Ljava/lang/Object;)V");
-    s_pair_first_field = env->GetFieldID(pair_class, "first", "Ljava/lang/Object;");
-    s_pair_second_field = env->GetFieldID(pair_class, "second", "Ljava/lang/Object;");
-    env->DeleteLocalRef(pair_class);
-
-    const jclass overlay_control_data_class =
-        env->FindClass("org/yuzu/yuzu_emu/overlay/model/OverlayControlData");
-    s_overlay_control_data_class =
-        reinterpret_cast<jclass>(env->NewGlobalRef(overlay_control_data_class));
-    s_overlay_control_data_constructor =
-        env->GetMethodID(overlay_control_data_class, "<init>",
-                         "(Ljava/lang/String;ZLkotlin/Pair;Lkotlin/Pair;Lkotlin/Pair;F)V");
-    s_overlay_control_data_id_field =
-        env->GetFieldID(overlay_control_data_class, "id", "Ljava/lang/String;");
-    s_overlay_control_data_enabled_field =
-        env->GetFieldID(overlay_control_data_class, "enabled", "Z");
-    s_overlay_control_data_landscape_position_field =
-        env->GetFieldID(overlay_control_data_class, "landscapePosition", "Lkotlin/Pair;");
-    s_overlay_control_data_portrait_position_field =
-        env->GetFieldID(overlay_control_data_class, "portraitPosition", "Lkotlin/Pair;");
-    s_overlay_control_data_foldable_position_field =
-        env->GetFieldID(overlay_control_data_class, "foldablePosition", "Lkotlin/Pair;");
-    s_overlay_control_data_individual_scale_field =
-        env->GetFieldID(overlay_control_data_class, "individualScale", "F");
-    env->DeleteLocalRef(overlay_control_data_class);
-
-    const jclass patch_class = env->FindClass("org/yuzu/yuzu_emu/model/Patch");
-    s_patch_class = reinterpret_cast<jclass>(env->NewGlobalRef(patch_class));
-    s_patch_constructor = env->GetMethodID(
-        patch_class, "<init>",
-        "(ZLjava/lang/String;Ljava/lang/String;ILjava/lang/String;Ljava/lang/String;JI)V");
-    s_patch_enabled_field = env->GetFieldID(patch_class, "enabled", "Z");
-    s_patch_name_field = env->GetFieldID(patch_class, "name", "Ljava/lang/String;");
-    s_patch_version_field = env->GetFieldID(patch_class, "version", "Ljava/lang/String;");
-    s_patch_type_field = env->GetFieldID(patch_class, "type", "I");
-    s_patch_program_id_field = env->GetFieldID(patch_class, "programId", "Ljava/lang/String;");
-    s_patch_title_id_field = env->GetFieldID(patch_class, "titleId", "Ljava/lang/String;");
-    env->DeleteLocalRef(patch_class);
-
-    const jclass double_class = env->FindClass("java/lang/Double");
-    s_double_class = reinterpret_cast<jclass>(env->NewGlobalRef(double_class));
-    s_double_constructor = env->GetMethodID(double_class, "<init>", "(D)V");
-    s_double_value_method = env->GetMethodID(double_class, "doubleValue", "()D");
-    env->DeleteLocalRef(double_class);
-
-    const jclass int_class = env->FindClass("java/lang/Integer");
-    s_integer_class = reinterpret_cast<jclass>(env->NewGlobalRef(int_class));
-    s_integer_constructor = env->GetMethodID(int_class, "<init>", "(I)V");
-    s_integer_value_method = env->GetMethodID(int_class, "intValue", "()I");
-    env->DeleteLocalRef(int_class);
-
-    const jclass boolean_class = env->FindClass("java/lang/Boolean");
-    s_boolean_class = reinterpret_cast<jclass>(env->NewGlobalRef(boolean_class));
-    s_boolean_constructor = env->GetMethodID(boolean_class, "<init>", "(Z)V");
-    s_boolean_value_method = env->GetMethodID(boolean_class, "booleanValue", "()Z");
-    env->DeleteLocalRef(boolean_class);
-
-    const jclass player_input_class =
-        env->FindClass("org/yuzu/yuzu_emu/features/input/model/PlayerInput");
-    s_player_input_class = reinterpret_cast<jclass>(env->NewGlobalRef(player_input_class));
-    s_player_input_constructor = env->GetMethodID(
-        player_input_class, "<init>",
-        "(Z[Ljava/lang/String;[Ljava/lang/String;[Ljava/lang/String;ZIJJJJLjava/lang/String;Z)V");
-    s_player_input_connected_field = env->GetFieldID(player_input_class, "connected", "Z");
-    s_player_input_buttons_field =
-        env->GetFieldID(player_input_class, "buttons", "[Ljava/lang/String;");
-    s_player_input_analogs_field =
-        env->GetFieldID(player_input_class, "analogs", "[Ljava/lang/String;");
-    s_player_input_motions_field =
-        env->GetFieldID(player_input_class, "motions", "[Ljava/lang/String;");
-    s_player_input_vibration_enabled_field =
-        env->GetFieldID(player_input_class, "vibrationEnabled", "Z");
-    s_player_input_vibration_strength_field =
-        env->GetFieldID(player_input_class, "vibrationStrength", "I");
-    s_player_input_body_color_left_field =
-        env->GetFieldID(player_input_class, "bodyColorLeft", "J");
-    s_player_input_body_color_right_field =
-        env->GetFieldID(player_input_class, "bodyColorRight", "J");
-    s_player_input_button_color_left_field =
-        env->GetFieldID(player_input_class, "buttonColorLeft", "J");
-    s_player_input_button_color_right_field =
-        env->GetFieldID(player_input_class, "buttonColorRight", "J");
-    s_player_input_profile_name_field =
-        env->GetFieldID(player_input_class, "profileName", "Ljava/lang/String;");
-    s_player_input_use_system_vibrator_field =
-        env->GetFieldID(player_input_class, "useSystemVibrator", "Z");
-    env->DeleteLocalRef(player_input_class);
-
-    const jclass yuzu_input_device_interface =
-        env->FindClass("org/yuzu/yuzu_emu/features/input/YuzuInputDevice");
-    s_yuzu_input_device_interface =
-        reinterpret_cast<jclass>(env->NewGlobalRef(yuzu_input_device_interface));
-    s_yuzu_input_device_get_name =
-        env->GetMethodID(yuzu_input_device_interface, "getName", "()Ljava/lang/String;");
-    s_yuzu_input_device_get_guid =
-        env->GetMethodID(yuzu_input_device_interface, "getGUID", "()Ljava/lang/String;");
-    s_yuzu_input_device_get_port = env->GetMethodID(yuzu_input_device_interface, "getPort",
-                                                    "()I");
-    s_yuzu_input_device_get_supports_vibration =
-        env->GetMethodID(yuzu_input_device_interface, "getSupportsVibration", "()Z");
-    s_yuzu_input_device_vibrate = env->GetMethodID(yuzu_input_device_interface, "vibrate",
-                                                   "(F)V");
-    s_yuzu_input_device_get_axes =
-        env->GetMethodID(yuzu_input_device_interface, "getAxes", "()[Ljava/lang/Integer;");
-    s_yuzu_input_device_has_keys =
-        env->GetMethodID(yuzu_input_device_interface, "hasKeys", "([I)[Z");
-    env->DeleteLocalRef(yuzu_input_device_interface);
-    s_add_netplay_message = env->GetStaticMethodID(s_native_library_class, "addNetPlayMessage",
-                                                   "(ILjava/lang/String;)V");
-    s_clear_chat = env->GetStaticMethodID(s_native_library_class, "clearChat", "()V");
-
-    // Initialize Android Storage
-    Common::FS::Android::RegisterCallbacks(env, s_native_library_class);
-
-    // Initialize applets
-    Common::Android::SoftwareKeyboard::InitJNI(env);
-    Common::Android::WebBrowser::InitJNI(env);
-}
-
 } // namespace Common::Android
@@ -11,7 +11,6 @@

 namespace Common::Android {

-void Initialize(JavaVM* vm, JNIEnv *env);
 JNIEnv* GetEnvForThread();

 /**
@@ -81,15 +80,15 @@ jfieldID GetPatchTitleIdField();

 jclass GetDoubleClass();
 jmethodID GetDoubleConstructor();
-jmethodID GetDoubleValueMethod();
+jfieldID GetDoubleValueField();

 jclass GetIntegerClass();
 jmethodID GetIntegerConstructor();
-jmethodID GetIntegerValueMethod();
+jfieldID GetIntegerValueField();

 jclass GetBooleanClass();
 jmethodID GetBooleanConstructor();
-jmethodID GetBooleanValueMethod();
+jfieldID GetBooleanValueField();

 jclass GetPlayerInputClass();
 jmethodID GetPlayerInputConstructor();
@@ -11,7 +11,12 @@
 #include "common/fiber.h"
 #include "common/virtual_buffer.h"

+#ifdef __EMSCRIPTEN__
+#include <emscripten.h>
+#include <emscripten/fiber.h>
+#else
 #include <boost/context/detail/fcontext.hpp>
+#endif

 namespace Common {

@@ -22,36 +27,103 @@ constexpr size_t DEFAULT_STACK_SIZE = 512 * 4096;
 #endif
 constexpr u32 CANARY_VALUE = 0xDEADBEEF;

+#ifdef __EMSCRIPTEN__
 struct Fiber::FiberImpl {
    FiberImpl() {}

    u32 canary_1 = CANARY_VALUE;
    std::array<u8, DEFAULT_STACK_SIZE> stack{};
-    std::array<u8, DEFAULT_STACK_SIZE> rewind_stack{};
+    std::array<u8, DEFAULT_STACK_SIZE> astack{};
    u32 canary_2 = CANARY_VALUE;

-    boost::context::detail::fcontext_t context{};
-    boost::context::detail::fcontext_t rewind_context{};
+    emscripten_fiber_t* context{nullptr};

    std::mutex guard;
    std::function<void()> entry_point;
-    std::function<void()> rewind_point;
    std::shared_ptr<Fiber> previous_fiber;
-
-    u8* stack_limit = nullptr;
-    u8* rewind_stack_limit = nullptr;
    bool is_thread_fiber = false;
    bool released = false;
 };

-void Fiber::SetRewindPoint(std::function<void()>&& rewind_func) {
-    impl->rewind_point = std::move(rewind_func);
+Fiber::Fiber(std::function<void()>&& entry_point_func) : impl{std::make_unique<FiberImpl>()} {
+    impl->entry_point = std::move(entry_point_func);
+    emscripten_fiber_init(impl->context, [](void *user_data) -> void {
+        auto* fiber = static_cast<Fiber*>(user_data);
+        ASSERT(fiber && fiber->impl && fiber->impl->previous_fiber && fiber->impl->previous_fiber->impl);
+        ASSERT(fiber->impl->canary_1 == CANARY_VALUE);
+        ASSERT(fiber->impl->canary_2 == CANARY_VALUE);
+        fiber->impl->previous_fiber->impl->context = fiber->impl->context;
+        fiber->impl->previous_fiber->impl->guard.unlock();
+        fiber->impl->previous_fiber.reset();
+        fiber->impl->entry_point();
+        UNREACHABLE();
+    }, impl.get(), impl->stack.data(), impl->stack.size(), impl->astack.data(), impl->astack.size());
 }

+Fiber::Fiber() : impl{std::make_unique<FiberImpl>()} {}
+
+Fiber::~Fiber() {
+    if (!impl->released) {
+        // Make sure the Fiber is not being used
+        const bool locked = impl->guard.try_lock();
+        ASSERT(locked && "Destroying a fiber that's still running");
+        if (locked) {
+            impl->guard.unlock();
+        }
+    }
+}
+
+void Fiber::Exit() {
+    ASSERT(impl->is_thread_fiber && "Exiting non main thread fiber");
+    if (impl->is_thread_fiber) {
+        impl->guard.unlock();
+        impl->released = true;
+    }
+}
+
+void Fiber::YieldTo(std::weak_ptr<Fiber> weak_from, Fiber& to) {
+    to.impl->guard.lock();
+    to.impl->previous_fiber = weak_from.lock();
+    emscripten_fiber_swap(to.impl->context, to.impl->previous_fiber->impl->context);
+    // "from" might no longer be valid if the thread was killed
+    if (auto from = weak_from.lock()) {
+        if (from->impl->previous_fiber == nullptr) {
+            ASSERT(false && "previous_fiber is nullptr!");
+        } else {
+            from->impl->previous_fiber->impl->guard.unlock();
+            from->impl->previous_fiber.reset();
+        }
+    }
+}
+
+std::shared_ptr<Fiber> Fiber::ThreadToFiber() {
+    std::shared_ptr<Fiber> fiber = std::shared_ptr<Fiber>{new Fiber()};
+    fiber->impl->guard.lock();
+    fiber->impl->is_thread_fiber = true;
+    return fiber;
+}
+#else
+struct Fiber::FiberImpl {
+    FiberImpl() {}
+
+    u32 canary_1 = CANARY_VALUE;
+    std::array<u8, DEFAULT_STACK_SIZE> stack{};
+    u32 canary_2 = CANARY_VALUE;
+
+    boost::context::detail::fcontext_t context{};
+
+    std::mutex guard;
+    std::function<void()> entry_point;
+    std::shared_ptr<Fiber> previous_fiber;
+
+    u8* stack_limit = nullptr;
+    bool is_thread_fiber = false;
+    bool released = false;
+};
+
 Fiber::Fiber(std::function<void()>&& entry_point_func) : impl{std::make_unique<FiberImpl>()} {
    impl->entry_point = std::move(entry_point_func);
    impl->stack_limit = impl->stack.data();
-    impl->rewind_stack_limit = impl->rewind_stack.data();
    u8* stack_base = impl->stack_limit + DEFAULT_STACK_SIZE;
    impl->context = boost::context::detail::make_fcontext(stack_base, impl->stack.size(), [](boost::context::detail::transfer_t transfer) -> void {
        auto* fiber = static_cast<Fiber*>(transfer.data);
@@ -72,7 +144,7 @@ Fiber::~Fiber() {
    if (!impl->released) {
        // Make sure the Fiber is not being used
        const bool locked = impl->guard.try_lock();
-        ASSERT_MSG(locked, "Destroying a fiber that's still running");
+        ASSERT(locked && "Destroying a fiber that's still running");
        if (locked) {
            impl->guard.unlock();
        }
@@ -80,7 +152,7 @@ Fiber::~Fiber() {
 }

 void Fiber::Exit() {
-    ASSERT_MSG(impl->is_thread_fiber, "Exiting non main thread fiber");
+    ASSERT(impl->is_thread_fiber && "Exiting non main thread fiber");
    if (impl->is_thread_fiber) {
        impl->guard.unlock();
        impl->released = true;
@@ -110,5 +182,6 @@ std::shared_ptr<Fiber> Fiber::ThreadToFiber() {
    fiber->impl->is_thread_fiber = true;
    return fiber;
 }
+#endif

 } // namespace Common
@@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
 // SPDX-License-Identifier: GPL-3.0-or-later

 // SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
@@ -45,7 +45,6 @@ public:
    /// Fiber 'from' must be the currently running fiber.
    static void YieldTo(std::weak_ptr<Fiber> weak_from, Fiber& to);
    [[nodiscard]] static std::shared_ptr<Fiber> ThreadToFiber();
-    void SetRewindPoint(std::function<void()>&& rewind_func);
    /// Only call from main thread's fiber
    void Exit();
 private:
@@ -136,6 +136,11 @@ public:
            eden_path = GetDataDirectory("XDG_DATA_HOME") / EDEN_DIR;
            eden_path_cache = GetDataDirectory("XDG_CACHE_HOME") / EDEN_DIR;
            eden_path_config = GetDataDirectory("XDG_CONFIG_HOME") / EDEN_DIR;
+#if defined(__EMSCRIPTEN__) || defined(__wasi__) || defined(__managarm__)
+            // folders MAY not exist in this distrobution/OS
+            CreateParentDir(GetDataDirectory("XDG_CONFIG_HOME"));
+            CreateParentDir(GetDataDirectory("XDG_CACHE_HOME"));
+#endif
        } else {
            eden_path_cache = eden_path / CACHE_DIR;
            eden_path_config = eden_path / CONFIG_DIR;
@@ -394,7 +394,7 @@ private:
    ::Common::unordered_map<size_t, size_t> placeholder_host_pointers; ///< Placeholder backing offset
 };

-#elif defined(__OPENORBIS__) || defined(__managarm__)
+#elif defined(__OPENORBIS__) || defined(__managarm__) || defined(__wasi__) || defined(__EMSCRIPTEN__)
 // None of the luxuries of POSIX, all of the suffering
 // For managarm: see https://github.com/managarm/managarm/issues/1370
 #else // ^^^ Windows ^^^ vvv POSIX vvv
@@ -689,7 +689,7 @@ HostMemory::HostMemory(size_t backing_size_, size_t virtual_size_)
    : backing_size(backing_size_)
    , virtual_size(virtual_size_)
 {
-#if defined(__OPENORBIS__) || defined(__managarm__)
+#if defined(__OPENORBIS__) || defined(__managarm__) || defined(__wasi__) || defined(__EMSCRIPTEN__)
    LOG_WARNING(HW_Memory, "Platform doesn't support fastmem");
    fallback_buffer.emplace(backing_size);
    backing_base = fallback_buffer->data();
@@ -723,7 +723,7 @@ HostMemory::HostMemory(HostMemory&&) noexcept = default;
 HostMemory& HostMemory::operator=(HostMemory&&) noexcept = default;

 void HostMemory::Map(size_t virtual_offset, size_t host_offset, size_t length, MemoryPermission perms, bool separate_heap) {
-#if !(defined(__OPENORBIS__) || defined(__managarm__))
+#if !(defined(__OPENORBIS__) || defined(__managarm__) || defined(__wasi__) || defined(__EMSCRIPTEN__))
    ASSERT(virtual_offset % PageAlignment == 0);
    ASSERT(host_offset % PageAlignment == 0);
    ASSERT(length % PageAlignment == 0);
@@ -737,7 +737,7 @@ void HostMemory::Map(size_t virtual_offset, size_t host_offset, size_t length, M
 }

 void HostMemory::Unmap(size_t virtual_offset, size_t length, bool separate_heap) {
-#if !(defined(__OPENORBIS__) || defined(__managarm__))
+#if !(defined(__OPENORBIS__) || defined(__managarm__) || defined(__wasi__) || defined(__EMSCRIPTEN__))
    ASSERT(virtual_offset % PageAlignment == 0);
    ASSERT(length % PageAlignment == 0);
    ASSERT(virtual_offset + length <= virtual_size);
@@ -749,7 +749,7 @@ void HostMemory::Unmap(size_t virtual_offset, size_t length, bool separate_heap)
 }

 void HostMemory::Protect(size_t virtual_offset, size_t length, MemoryPermission perm) {
-#if !(defined(__OPENORBIS__) || defined(__managarm__))
+#if !(defined(__OPENORBIS__) || defined(__managarm__) || defined(__wasi__) || defined(__EMSCRIPTEN__))
    ASSERT(virtual_offset % PageAlignment == 0);
    ASSERT(length % PageAlignment == 0);
    ASSERT(virtual_offset + length <= virtual_size);
@@ -768,7 +768,7 @@ void HostMemory::ClearBackingRegion(size_t physical_offset, size_t length, u32 f
 }

 void HostMemory::EnableDirectMappedAddress() {
-#if !(defined(__OPENORBIS__) || defined(__managarm__))
+#if !(defined(__OPENORBIS__) || defined(__managarm__) || defined(__wasi__) || defined(__EMSCRIPTEN__))
    if (impl) {
        impl->EnableDirectMappedAddress();
        virtual_size += reinterpret_cast<uintptr_t>(virtual_base);
@@ -77,7 +77,7 @@ private:
    size_t backing_size{};
    size_t virtual_size{};

-#if !(defined(__OPENORBIS__) || defined(__managarm__))
+#if !(defined(__OPENORBIS__) || defined(__managarm__) || defined(__wasi__) || defined(__EMSCRIPTEN__))
    // Low level handler for the platform dependent memory routines
    class Impl;
    std::unique_ptr<Impl> impl;
@@ -92,14 +92,14 @@ struct EnumMetadata {
 // AudioEngine must be specified discretely due to having existing but slightly different
 // canonicalizations
 // TODO (lat9nq): Remove explicit definition of AudioEngine/sink_id
-enum class AudioEngine : u32 { Auto, Cubeb, Sdl3, Null, };
+enum class AudioEngine : u32 { Auto, Cubeb, Sdl3, Null, Oboe, };
 template<>
 inline std::vector<std::pair<std::string_view, AudioEngine>> EnumMetadata<AudioEngine>::Canonicalizations() {
    return {
        {"auto", AudioEngine::Auto},
        {"cubeb", AudioEngine::Cubeb},
        {"sdl3", AudioEngine::Sdl3},
-        {"null", AudioEngine::Null},
+        {"null", AudioEngine::Null}, {"oboe", AudioEngine::Oboe},
    };
 }
 /// @brief This is just a sufficiently large number that is more than the number of other enums declared here
@@ -113,7 +113,7 @@ inline AudioEngine EnumMetadata<AudioEngine>::GetFirst() {
 }
 template<>
 inline AudioEngine EnumMetadata<AudioEngine>::GetLast() {
-    return AudioEngine::Null;
+    return AudioEngine::Oboe;
 }

 ENUM(AudioMode, Mono, Stereo, Surround);
@@ -490,6 +490,8 @@ void SetCurrentThreadPriority(ThreadPriority new_priority) {
        LOG_DEBUG(Common, "Could not set thread nice value to {}: {}", nice_value,
                  GetLastErrorMsg());
    }
+#elif defined(__EMSCRIPTEN__)
+    // TODO: set priority?
 #else
    const s32 max_prio = sched_get_priority_max(SCHED_OTHER);
    const s32 min_prio = sched_get_priority_min(SCHED_OTHER);
@@ -534,6 +536,8 @@ void SetCurrentThreadName(const char* name) {
    // See for reference
    // https://gitlab.freedesktop.org/mesa/mesa/-/blame/main/src/util/u_thread.c?ref_type=heads#L75
    (void)name;
+#elif defined(__EMSCRIPTEN__)
+    // TODO: set thread name?
 #else
    pthread_setname_np(pthread_self(), name);
 #endif
@@ -38,10 +38,6 @@ add_library(core STATIC
    debugger/debugger.cpp
    debugger/debugger.h
    debugger/debugger_interface.h
-    debugger/gdbstub.cpp
-    debugger/gdbstub.h
-    debugger/gdbstub_arch.cpp
-    debugger/gdbstub_arch.h
    device_memory.cpp
    device_memory.h
    device_memory_manager.h
@@ -1166,6 +1162,14 @@ add_library(core STATIC
    tools/freezer.h
    tools/renderdoc.cpp
    tools/renderdoc.h)
+if (NOT EMSCRIPTEN)
+    # incompatible with wasm's async model
+    target_sources(core PRIVATE
+        debugger/gdbstub.cpp
+        debugger/gdbstub.h
+        debugger/gdbstub_arch.cpp
+        debugger/gdbstub_arch.h)
+endif()

 if (ENABLE_WIFI_SCAN)
    target_sources(core PRIVATE internal_network/wifi_scanner.cpp)
@@ -1209,7 +1213,10 @@ target_include_directories(core PRIVATE ${OPUS_INCLUDE_DIRS})
 target_link_libraries(core PUBLIC common PRIVATE audio_core hid_core network video_core nx_tzdb tz)

 if (BOOST_NO_HEADERS)
-    target_link_libraries(core PUBLIC Boost::container Boost::heap Boost::asio Boost::process Boost::crc)
+    target_link_libraries(core PUBLIC Boost::container Boost::heap Boost::crc)
+    if (NOT EMSCRIPTEN)
+        target_link_libraries(core PUBLIC Boost::asio Boost::process)
+    endif()
 else()
    target_link_libraries(core PUBLIC Boost::headers)
 endif()
@@ -6,19 +6,20 @@

 #pragma once

+#ifndef __EMSCRIPTEN__
 #include <dynarmic/interface/halt_reason.h>
-
+#endif
 #include "core/arm/arm_interface.h"

 namespace Core {

+#ifndef __EMSCRIPTEN__
 constexpr Dynarmic::HaltReason StepThread = Dynarmic::HaltReason::Step;
 constexpr Dynarmic::HaltReason DataAbort = Dynarmic::HaltReason::MemoryAbort;
 constexpr Dynarmic::HaltReason BreakLoop = Dynarmic::HaltReason::UserDefined2;
 constexpr Dynarmic::HaltReason SupervisorCall = Dynarmic::HaltReason::UserDefined3;
 constexpr Dynarmic::HaltReason InstructionBreakpoint = Dynarmic::HaltReason::UserDefined4;
 constexpr Dynarmic::HaltReason PrefetchAbort = Dynarmic::HaltReason::UserDefined6;
-
 constexpr HaltReason TranslateHaltReason(Dynarmic::HaltReason hr) {
    static_assert(u64(HaltReason::StepThread) == u64(StepThread));
    static_assert(u64(HaltReason::DataAbort) == u64(DataAbort));
@@ -28,5 +29,6 @@ constexpr HaltReason TranslateHaltReason(Dynarmic::HaltReason hr) {
    static_assert(u64(HaltReason::PrefetchAbort) == u64(PrefetchAbort));
    return HaltReason(hr);
 }
+#endif

 } // namespace Core
@@ -6,30 +6,54 @@

 #include <mutex>
 #include <utility>
+
+#if defined(__EMSCRIPTEN__) || defined(__wasi__)
+// TODO: gdb stub compat with emscripten?
+#else
 #include <boost/asio.hpp>
 #include <boost/version.hpp>
-
 #if BOOST_VERSION > 108400 && (!defined(_WINDOWS) && !defined(__ANDROID__)) || defined(YUZU_BOOST_v1)
 #define USE_BOOST_v1
 #endif
-
 #ifdef USE_BOOST_v1
 #include <boost/process/v1/async_pipe.hpp>
 #else
 #include <boost/process/async_pipe.hpp>
 #endif
+#endif

 #include "common/logging.h"
 #include "common/polyfill_thread.h"
 #include "common/thread.h"
 #include "core/core.h"
 #include "core/debugger/debugger.h"
+#if defined(__EMSCRIPTEN__) || defined(__wasi__)
+// TODO: gdbstub with emscripten?
+#else
 #include "core/debugger/debugger_interface.h"
 #include "core/debugger/gdbstub.h"
+#endif
 #include "core/hle/kernel/global_scheduler_context.h"
 #include "core/hle/kernel/k_process.h"
 #include "core/hle/kernel/k_scheduler.h"

+#if defined(__EMSCRIPTEN__) || defined(__wasi__)
+namespace Core {
+// Dummy
+class DebuggerImpl {
+    char pad;
+};
+Debugger::Debugger(Core::System& system, u16 port) {}
+Debugger::~Debugger() = default;
+bool Debugger::NotifyThreadStopped(Kernel::KThread* thread) {
+    return false;
+}
+bool Debugger::NotifyThreadWatchpoint(Kernel::KThread* thread, const Kernel::DebugWatchpoint& watch) {
+    return false;
+}
+void Debugger::NotifyShutdown() {}
+} // namespace Core
+#else
 template <typename Readable, typename Buffer, typename Callback>
 static void AsyncReceiveInto(Readable& r, Buffer& buffer, Callback&& c) {
    static_assert(std::is_trivial_v<Buffer>);
@@ -358,7 +382,7 @@ private:

        ConnectionState(boost::asio::ip::tcp::socket&& client_socket_, async_pipe signal_pipe_, Kernel::KernelCore& kernel)
            : client_socket{std::move(client_socket_)}
-            , signal_pipe{std::move(signal_pipe_)}
+            , signal_pipe{signal_pipe_}
            , active_thread{kernel, nullptr}
        {}

@@ -400,3 +424,4 @@ void Debugger::NotifyShutdown() {
 }

 } // namespace Core
+#endif
@@ -7,8 +7,14 @@
 #include <random>
 #include "common/scope_exit.h"
 #include "common/settings.h"
+
+#include "core/arm/exclusive_monitor.h"
+#ifndef __EMSCRIPTEN__
 #include "core/arm/dynarmic/arm_dynarmic.h"
 #include "core/arm/dynarmic/dynarmic_exclusive_monitor.h"
+#include "core/arm/dynarmic/arm_dynarmic_32.h"
+#include "core/arm/dynarmic/arm_dynarmic_64.h"
+#endif
 #include "core/core.h"
 #include "core/hle/kernel/k_process.h"
 #include "core/hle/kernel/k_scoped_resource_reservation.h"
@@ -18,8 +24,6 @@
 #include "core/hle/kernel/k_thread_queue.h"
 #include "core/hle/kernel/k_worker_task_manager.h"

-#include "core/arm/dynarmic/arm_dynarmic_32.h"
-#include "core/arm/dynarmic/arm_dynarmic_64.h"
 #ifdef HAS_NCE
 #include "core/arm/nce/arm_nce.h"
 #endif
@@ -1021,9 +1025,6 @@ Result KProcess::Run(KernelCore& kernel, s32 priority, size_t stack_size) {

    // Suspend for debug, if we should.
    if (kernel.System().DebuggerEnabled()) {
-        LOG_INFO(Debug_GDBStub,
-                 "GDB stub enabled; suspending guest process until a debugger continues execution on port {}",
-                 Settings::values.gdbstub_port.GetValue());
        main_thread->RequestSuspend(kernel, SuspendType::Debug);
    }

@@ -1303,9 +1304,11 @@ void KProcess::LoadModule(KernelCore& kernel, CodeSet code_set, KProcessAddress
 }

 void KProcess::InitializeInterfaces(KernelCore& kernel) {
+#ifdef __EMSCRIPTEN__
+    ASSERT(false && "unimplemented");
+#else
    m_exclusive_monitor =
        Core::MakeExclusiveMonitor(this->GetMemory(), Core::Hardware::NUM_CPU_CORES);
-
 #ifdef HAS_NCE
    if (this->IsApplication() && Settings::IsNceEnabled()) {
        for (size_t i = 0; i < Core::Hardware::NUM_CPU_CORES; i++)
@@ -1325,6 +1328,7 @@ void KProcess::InitializeInterfaces(KernelCore& kernel) {
                static_cast<Core::DynarmicExclusiveMonitor&>(*m_exclusive_monitor), i);
        }
    }
+#endif
 }

 bool KProcess::InsertWatchpoint(KernelCore& kernel, KProcessAddress addr, u64 size, DebugWatchpointType type) {
@@ -88,15 +88,22 @@ Services::Services(std::shared_ptr<SM::ServiceManager>& sm, Core::System& system

    // BEGONE cold clones of lambdas, for I have merged you all into a SINGLE lambda instead of
    // spamming lambdas like it's some kind of lambda calculus class
-    for (auto const& e : std::vector<std::pair<std::string_view, void (*)(Core::System&)>>{
+    std::vector<std::pair<std::string_view, void (*)(Core::System&)>> rt_services{
        {"audio",      &Audio::LoopProcess},
        {"FS",         &FileSystem::LoopProcess},
        {"ldn",        &LDN::LoopProcess},
        {"nvservices", &Nvidia::LoopProcess},
        {"bsdsocket",  &Sockets::LoopProcess},
-    })
+    };
+#if defined(__EMSCRIPTEN__) || defined(__wasi__) || defined(__OPENORBIS__)
+    for (auto const& e : rt_services)
+        kernel.RunOnGuestCoreProcess(std::string(e.first), [&system, f = e.second] { f(system); });
+    kernel.RunOnGuestCoreProcess("vi", [&, token] { VI::LoopProcess(system, token); });
+#else
+    for (auto const& e : rt_services)
        kernel.RunOnHostCoreProcess(std::string(e.first), [&system, f = e.second] { f(system); }).detach();
-    kernel.RunOnHostCoreProcess("vi",         [&, token] { VI::LoopProcess(system, token); }).detach();
+    kernel.RunOnHostCoreProcess("vi", [&, token] { VI::LoopProcess(system, token); }).detach();
+#endif
    // Avoid cold clones of lambdas -- succintly
    for (auto const& e : std::vector<std::pair<std::string_view, void (*)(Core::System&)>>{
        {"sm",         &SM::LoopProcess},
@@ -120,7 +127,10 @@ Services::Services(std::shared_ptr<SM::ServiceManager>& sm, Core::System& system
        {"glue",       &Glue::LoopProcess},
        {"grc",        &GRC::LoopProcess},
        {"hid",        &HID::LoopProcess},
+// Must match with src/core/CMakeLists.txt for target_source of jit.cpp
+#if defined(ARCHITECTURE_x86_64) || defined(ARCHITECTURE_arm64) || defined(ARCHITECTURE_riscv64) || defined(ARCHITECTURE_loongarch64)
        {"jit",        &JIT::LoopProcess},
+#endif
        {"lbl",        &LBL::LoopProcess},
        {"Loader",     &LDR::LoopProcess},
        {"LogManager.Prod", &LM::LoopProcess},
@@ -28,7 +28,10 @@ enum class NpadMcuState : u32 {
 struct NpadMcuHolder {
    NpadMcuState state;
    INSERT_PADDING_BYTES(0x4);
-    IAbstractedPad* abstracted_pad;
+    union {
+        IAbstractedPad* abstracted_pad;
+        u64 abstracted_pad_raw;
+    };
 };
 static_assert(sizeof(NpadMcuHolder) == 0x10, "NpadMcuHolder is an invalid size");

@@ -33,9 +33,15 @@ public:
    bool is_created{};
    bool is_mapped{};
    INSERT_PADDING_BYTES(0x5);
-    Kernel::KSharedMemory* shared_memory;
+    union {
+        Kernel::KSharedMemory* shared_memory = nullptr;
+        u64 shared_memory_raw;
+    };
    INSERT_PADDING_BYTES(0x38);
-    SharedMemoryFormat* address = nullptr;
+    union {
+        SharedMemoryFormat* address = nullptr;
+        u64 address_raw;
+    };
 };
 // Correct size is 0x50 bytes
 static_assert(sizeof(SharedMemoryHolder) == 0x50, "SharedMemoryHolder is an invalid size");
@@ -15,8 +15,6 @@ add_library(input_common STATIC
    drivers/tas_input.h
    drivers/touch_screen.cpp
    drivers/touch_screen.h
-    drivers/udp_client.cpp
-    drivers/udp_client.h
    drivers/virtual_amiibo.cpp
    drivers/virtual_amiibo.h
    drivers/virtual_gamepad.cpp
@@ -34,8 +32,12 @@ add_library(input_common STATIC
    input_poller.cpp
    input_poller.h
    main.cpp
-    main.h
-)
+    main.h)
+if (NOT EMSCRIPTEN)
+    target_sources(input_common PRIVATE
+        drivers/udp_client.cpp
+        drivers/udp_client.h)
+endif()

 if (MSVC)
    target_compile_options(input_common PRIVATE
@@ -114,7 +114,7 @@ std::set<s32> Android::GetDeviceAxes(JNIEnv* env, jobject& j_device) const {
    std::set<s32> axes;
    for (int i = 0; i < env->GetArrayLength(j_axes); ++i) {
        jobject axis = env->GetObjectArrayElement(j_axes, i);
-        axes.insert(env->CallIntMethod(axis, Common::Android::GetIntegerValueMethod()));
+        axes.insert(env->GetIntField(axis, Common::Android::GetIntegerValueField()));
    }
    return axes;
 }
@@ -12,7 +12,6 @@
 #include "input_common/drivers/mouse.h"
 #include "input_common/drivers/tas_input.h"
 #include "input_common/drivers/touch_screen.h"
-#include "input_common/drivers/udp_client.h"
 #include "input_common/drivers/virtual_amiibo.h"
 #include "input_common/drivers/virtual_gamepad.h"
 #include "input_common/helpers/stick_from_buttons.h"
@@ -21,6 +20,9 @@
 #include "input_common/input_mapping.h"
 #include "input_common/input_poller.h"
 #include "input_common/main.h"
+#ifndef __EMSCRIPTEN__
+#include "input_common/drivers/udp_client.h"
+#endif

 #ifdef ENABLE_LIBUSB
 #include "input_common/drivers/gc_adapter.h"
@@ -82,7 +84,9 @@ struct InputSubsystem::Impl {
 #ifdef ENABLE_LIBUSB
        RegisterEngine("gcpad", gcadapter);
 #endif
+#ifndef __EMSCRIPTEN__
        RegisterEngine("cemuhookudp", udp_client);
+#endif
        RegisterEngine("tas", tas_input);
        RegisterEngine("camera", camera);
 #ifdef __ANDROID__
@@ -116,7 +120,9 @@ struct InputSubsystem::Impl {
 #ifdef ENABLE_LIBUSB
        UnregisterEngine(gcadapter);
 #endif
+#ifndef __EMSCRIPTEN__
        UnregisterEngine(udp_client);
+#endif
        UnregisterEngine(tas_input);
        UnregisterEngine(camera);
 #ifdef __ANDROID__
@@ -152,8 +158,10 @@ struct InputSubsystem::Impl {
        auto gcadapter_devices = gcadapter->GetInputDevices();
        devices.insert(devices.end(), gcadapter_devices.begin(), gcadapter_devices.end());
 #endif
+#ifndef __EMSCRIPTEN__
        auto udp_devices = udp_client->GetInputDevices();
        devices.insert(devices.end(), udp_devices.begin(), udp_devices.end());
+#endif
 #ifdef HAVE_SDL3
        auto joycon_devices = joycon->GetInputDevices();
        devices.insert(devices.end(), joycon_devices.begin(), joycon_devices.end());
@@ -186,9 +194,11 @@ struct InputSubsystem::Impl {
            return gcadapter;
        }
 #endif
+#ifndef __EMSCRIPTEN__
        if (engine == udp_client->GetEngineName()) {
            return udp_client;
        }
+#endif
 #ifdef HAVE_SDL3
        if (engine == sdl->GetEngineName()) {
            return sdl;
@@ -271,9 +281,11 @@ struct InputSubsystem::Impl {
            return true;
        }
 #endif
+#ifndef __EMSCRIPTEN__
        if (engine == udp_client->GetEngineName()) {
            return true;
        }
+#endif
        if (engine == tas_input->GetEngineName()) {
            return true;
        }
@@ -300,7 +312,9 @@ struct InputSubsystem::Impl {
 #ifdef ENABLE_LIBUSB
        gcadapter->BeginConfiguration();
 #endif
+#ifndef __EMSCRIPTEN__
        udp_client->BeginConfiguration();
+#endif
 #ifdef HAVE_SDL3
        sdl->BeginConfiguration();
        joycon->BeginConfiguration();
@@ -316,7 +330,9 @@ struct InputSubsystem::Impl {
 #ifdef ENABLE_LIBUSB
        gcadapter->EndConfiguration();
 #endif
+#ifndef __EMSCRIPTEN__
        udp_client->EndConfiguration();
+#endif
 #ifdef HAVE_SDL3
        sdl->EndConfiguration();
        joycon->EndConfiguration();
@@ -341,7 +357,9 @@ struct InputSubsystem::Impl {
    std::shared_ptr<Mouse> mouse;
    std::shared_ptr<TouchScreen> touch_screen;
    std::shared_ptr<TasInput::Tas> tas_input;
+#ifndef __EMSCRIPTEN__
    std::shared_ptr<CemuhookUDP::UDPClient> udp_client;
+#endif
    std::shared_ptr<Camera> camera;
    std::shared_ptr<VirtualAmiibo> virtual_amiibo;
    std::shared_ptr<VirtualGamepad> virtual_gamepad;
@@ -470,7 +488,9 @@ bool InputSubsystem::IsStickInverted(const Common::ParamPackage& params) const {
 }

 void InputSubsystem::ReloadInputDevices() {
+#ifndef __EMSCRIPTEN__
    impl->udp_client.get()->ReloadSockets();
+#endif
 }

 void InputSubsystem::BeginMapping(Polling::InputType type) {
@@ -257,8 +257,7 @@ else()
        # Bracket depth determines maximum size of a fold expression in Clang since 9c9974c3ccb6.
        # And this in turns limits the size of a std::array.
        $<$<CXX_COMPILER_ID:Clang>:-fbracket-depth=1024>
-        $<$<CXX_COMPILER_ID:AppleClang>:-fbracket-depth=1024>
-    )
+        $<$<CXX_COMPILER_ID:AppleClang>:-fbracket-depth=1024>)
 endif()

 create_target_directory_groups(shader_recompiler)
@@ -31,7 +31,7 @@ struct CbufWordKey {

 struct CbufWordKeyHash {
    constexpr size_t operator()(const CbufWordKey& k) const noexcept {
-        return (size_t(k.index) << 32) ^ k.offset;
+        return size_t((u64(k.index) << 32) ^ u64(k.offset));
    }
 };

@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later

@@ -157,16 +160,14 @@ IR::Value Sample(TranslatorVisitor& v, u64 insn) {

 unsigned Swizzle(u64 insn) {
    const Encoding texs{insn};
-    const size_t encoding{texs.swizzle};
+    u8 const encoding = u8(texs.swizzle);
    if (texs.dest_reg_b == IR::Reg::RZ) {
-        if (encoding >= RG_LUT.size()) {
+        if (encoding >= RG_LUT.size())
            throw NotImplementedException("Illegal RG encoding {}", encoding);
-        }
        return RG_LUT[encoding];
    } else {
-        if (encoding >= RGBA_LUT.size()) {
+        if (encoding >= RGBA_LUT.size())
            throw NotImplementedException("Illegal RGBA encoding {}", encoding);
-        }
        return RGBA_LUT[encoding];
    }
 }
@@ -1,3 +1,6 @@
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 // SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later

@@ -142,16 +145,14 @@ IR::Value Sample(TranslatorVisitor& v, u64 insn) {

 unsigned Swizzle(u64 insn) {
    const Encoding tlds{insn};
-    const size_t encoding{tlds.swizzle};
+    u8 const encoding = u8(tlds.swizzle);
    if (tlds.dest_reg_b == IR::Reg::RZ) {
-        if (encoding >= RG_LUT.size()) {
+        if (encoding >= RG_LUT.size())
            throw NotImplementedException("Illegal RG encoding {}", encoding);
-        }
        return RG_LUT[encoding];
    } else {
-        if (encoding >= RGBA_LUT.size()) {
+        if (encoding >= RGBA_LUT.size())
            throw NotImplementedException("Illegal RGBA encoding {}", encoding);
-        }
        return RGBA_LUT[encoding];
    }
 }
@@ -75,3 +75,15 @@ if (NOT MSVC)
        $<$<COMPILE_LANGUAGE:C,CXX>:-Wno-unused-parameter>
        $<$<COMPILE_LANGUAGE:C,CXX>:-Wno-missing-field-initializers>)
 endif()
+
+if (EMSCRIPTEN)
+    # 10GB is required at max... yikes!
+    target_link_options(yuzu-cmd PRIVATE
+        -sALLOW_MEMORY_GROWTH=1
+        -sINITIAL_MEMORY=33554432
+        -sMAXIMUM_MEMORY=10737418240
+        -sGLOBAL_BASE=16777216
+        -sEXPORTED_RUNTIME_METHODS=['FS']
+        -sPTHREAD_POOL_SIZE_STRICT=0
+        -sPTHREAD_POOL_SIZE=navigator.hardwareConcurrency)
+endif()
@@ -30,6 +30,7 @@ Tools for Eden and other subprojects. When adding new scripts please use `#!/bin
 - `find-unused-strings.sh`: Find any unused strings in the Android app (XML -> Kotlin).
 - `cpp-lint.sh`: Homemade dumb C++ linter.
 - `fuzzsettings.cpp`: Fuzz settings files.
+- `miniserver.js`: Make a quick server that serves a page with the WASM on it, takes a single argument which is the path to the build directory containing *both* `eden-cli.js` and `eden-cli.wasm`. Run via `node.js`, `wasmtime` isn't supported.

 ## Android

@@ -0,0 +1,127 @@
+#!/usr/bin/env node
+// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+import { createServer } from 'http';
+import { readFile } from 'fs';
+import { join } from 'path';
+console.log(`dont forget to run: "npm --global install @jdmichaud/dwarf-2-sourcemap" for better debugging!`);
+const server = createServer((req, res) => {
+    console.log(`get ${req.url}`);
+    if (req.url === '/') {
+        // https://developer.mozilla.org/en-US/docs/WebAssembly/Guides/Loading_and_running
+        // If your browser doesn't support fetch... HAHA GET FUCKED
+        res.writeHead(200, {
+            'Content-Type': 'text/html',
+            'Cross-Origin-Opener-Policy': 'same-origin',
+            'Cross-Origin-Embedder-Policy': 'require-corp'
+        });
+        res.end(`<!DOCTYPE html>
+<html>
+<head>
+<title>eden-cli</title>
+</head>
+<body style="margin:0;padding:0;background-color:black;color:white;font-family:Monospace,Tahoma,Arial;">
+<div style="display:grid;grid-template-columns:1fr 1fr;gap:2px;width:100%;height:100vh;">
+    <canvas id="canvas" oncontextmenu="event.preventDefault()" style="width:100%;height:100%;background-color:gray;"></canvas>
+    <div id="tty-stdout"></div>
+</div>
+<script>
+var Module = { //do not prepend var
+    mainScriptUrlOrBlob: 'eden-cli.js',
+    arguments: ['--null-render', '--singlecore', '--filter', '*:Trace', '/home/web_user/game.nro'],
+    canvas: document.getElementById('canvas'),
+    print: (e) => {
+        e = e.replace('[1;31m', '<span style="color:red;font-weight:bold;">');
+        e = e.replace('[0;37m', '<span style="color:white;font-weight:bold;">');
+        e = e.replace('[1;35m', '<span style="color:pink;font-weight:bold;">');
+        e = e.replace('[1;33m', '<span style="color:yellow;font-weight:bold;">');
+        e = e.replace('[0;36m', '<span style="color:white;font-weight:bold;">');
+        e = e.replace('[0m', '</span>');
+        document.getElementById('tty-stdout').innerHTML += \`\${e}</br>\`;
+    },
+    printErr: (e) => {
+        document.getElementById('tty-stdout').innerHTML += \`<span style="color:red">\${e}</span></br>\`;
+    },
+    // not a wasm func but idc
+    printInternal: (e) => {
+        document.getElementById('tty-stdout').innerHTML += \`<span style="color:white">Internal WASM: \${e}</span></br>\`;
+    },
+    preInit: [
+        () => {
+            // copy just most relevant :)
+            Module.FS.mkdir('/home/web_user/.local');
+            Module.FS.mkdir('/home/web_user/.local/share');
+            Module.FS.mkdir('/home/web_user/.local/share/eden');
+            Module.FS.mkdir('/home/web_user/.config');
+            Module.FS.mkdir('/home/web_user/.config/eden');
+            Module.FS.createDataFile('/home/web_user', 'game.nro', gameNroFileBuffer, true, false, true);
+        }
+    ],
+    onRuntimeInitialized: () => { Module.printInternal("runtime ok"); },
+    setStatus: (e) => { Module.printInternal(e); },
+    monitorRunDependencies: (e) => { Module.printInternal("monitor deps: " + e); },
+    __wasm_call_ctors: () => { Module.printInternal("ctors beep"); },
+};
+var gameNroFileBuffer = {};
+Module.printInternal(\`Atomics: \${window.Atomics}, SharedArrayBuffer: \${window.SharedArrayBuffer}\`);
+Module.printInternal("trying to load script (if it hangs here check console)");
+fetch('game.nro').then((resp) => {
+    if (!resp.ok)
+        throw Error(\`\${resp.status}\`);
+    return resp.bytes();
+}).then((buffer) => {
+    gameNroFileBuffer = buffer;
+    // load the thingy AFTER loading the nro
+    Module.printInternal(\`loading from ${build_dir}/\${Module.mainScriptUrlOrBlob}\`);
+    var script = document.createElement('script');
+    script.src = '/eden-cli.js';
+    script.onload = (e) => Module.printInternal(\`loaded WASMy script \${e}!!\`);
+    document.head.appendChild(script);
+}).catch(Module.printErr);
+</script>
+</body>
+</html>`);
+    } else if (req.url === '/eden-cli.js') {
+        readFile(join(build_dir, 'eden-cli.js'), (err, content) => {
+            res.writeHead(200, {
+                'Content-Type': 'application/javascript',
+                'Cross-Origin-Opener-Policy': 'same-origin',
+                'Cross-Origin-Embedder-Policy': 'require-corp'
+            });
+            res.end(content, 'utf-8');
+        });
+    } else if (req.url === '/eden-cli.wasm') {
+        readFile(join(build_dir, 'eden-cli.wasm'), (err, content) => {
+            res.writeHead(200, {
+                'Content-Type': 'application/wasm',
+                'Cross-Origin-Opener-Policy': 'same-origin',
+                'Cross-Origin-Embedder-Policy': 'require-corp'
+            });
+            res.end(content);
+        });
+    } else if (req.url === '/game.nro') {
+        readFile(nro_file, (err, content) => {
+            res.writeHead(200, {
+                'Content-Type': 'application/octet-stream',
+                'Cross-Origin-Opener-Policy': 'same-origin',
+                'Cross-Origin-Embedder-Policy': 'require-corp'
+            });
+            res.end(content);
+        });
+    } else {
+        res.writeHead(404, {});
+        res.end('', 'utf-8');
+    }
+});
+
+const build_dir = process.argv[2];
+const nro_file = process.argv[3];
+if (typeof build_dir == "undefined" || typeof nro_file == "undefined") {
+    console.log(`Usage: ${process.argv[0]} ${process.argv[1]} [build directory] [NRO file]`);
+} else {
+    server.listen(2210, () => {
+        console.log(`${process.argv[0]} ${process.argv[1]} http://localhost:2210`);
+        console.log(`build dir = ${build_dir}`);
+    });
+}
Author	SHA1	Message	Date
lizzie	ab932a21f5	PLATFORM_EMSCRIPTEN -> EMSCRIPTEN	2026-09-01 21:26:37 +00:00
lizzie	59f01af896	prepare	2026-09-01 21:21:52 +00:00
lizzie	63230d247e	build adjustments	2026-09-01 21:21:52 +00:00
lizzie	24fb119204	ok no broken make	2026-09-01 21:21:52 +00:00
lizzie	04852efa63	boost asio fix in android	2026-09-01 21:21:52 +00:00
lizzie	87a30d017b	it loads the fucker :)	2026-09-01 21:21:52 +00:00
lizzie	4940c02134	BUT PROPERLY SHOW THE LOGS for fucks sake	2026-09-01 21:21:52 +00:00
lizzie	9789fe74c5	force services into guest process and singlecore option	2026-09-01 21:21:52 +00:00
lizzie	eea821c4f3	add filter options	2026-09-01 21:21:52 +00:00
lizzie	ff81b362f5	--null-renderer	2026-09-01 21:21:52 +00:00
lizzie	abc7ad2129	emscripten friendly sdl loop	2026-09-01 21:21:52 +00:00
lizzie	7f5051767d	fixup make program	2026-09-01 21:21:52 +00:00
lizzie	c25c531f5d	fixup caveats + add miniserver	2026-09-01 21:21:52 +00:00
lizzie	77bce8f709	10gb of ram	2026-09-01 21:21:52 +00:00
lizzie	a08925c561	small writeup of wasm	2026-09-01 21:21:51 +00:00
lizzie	46a8a76dbb	fix openssl	2026-09-01 21:21:29 +00:00
lizzie	cd2833a420	proper jthread support	2026-09-01 21:21:29 +00:00
lizzie	c7dbea0b22	fix wasm flags	2026-09-01 21:21:29 +00:00
lizzie	3d13ef9309	disable JIT service	2026-09-01 21:21:29 +00:00
lizzie	0e94895536	emscripten can't memfd	2026-09-01 21:21:29 +00:00
lizzie	5c12446f8d	emscripten doesnt have arc4random but wasi does?	2026-09-01 21:21:29 +00:00
lizzie	9ab9bfb712	fix non existant pthread funcs	2026-09-01 21:21:29 +00:00
lizzie	9e651d9460	initial wasm support	2026-09-01 21:21:29 +00:00
lizzie	fbb05fc5d5	ok fixup but better with bool returns	2026-09-01 21:21:29 +00:00
lizzie	caf0c82a99	Use managarm special fastmem fallback	2026-09-01 21:21:28 +00:00