diff --git a/AArch64/build-all.sh b/AArch64/build-all.sh
index 9bd2388..5493942 100644
--- a/AArch64/build-all.sh
+++ b/AArch64/build-all.sh
@@ -14,6 +14,7 @@ cd /image
 ./openssl.sh
 ./qt.sh
 ./sdl.sh
+./sdl3.sh
 ./portaudio.sh
 ./jack.sh
 ../Linux/ysfx.sh
\ No newline at end of file
diff --git a/AArch64/sdl3.sh b/AArch64/sdl3.sh
new file mode 100755
index 0000000..525eed7
--- /dev/null
+++ b/AArch64/sdl3.sh
@@ -0,0 +1,48 @@
+#!/bin/bash
+
+source ./common.sh clang
+source ../common/clone-sdl3.sh
+
+export CFLAGS="${CFLAGS:-} -DSDL_DYNAMIC_API=0"
+export CXXFLAGS="${CXXFLAGS:-} -DSDL_DYNAMIC_API=0"
+
+cmake -S SDL3-$SDL3_VERSION -B sdl3-build \
+ -GNinja \
+ -DCMAKE_TOOLCHAIN_FILE="$CMAKE_TOOLCHAIN" \
+ -DSDL_STATIC=1 \
+ -DSDL_SHARED=0 \
+ -DBUILD_SHARED_LIBS=0 \
+ -DCMAKE_POSITION_INDEPENDENT_CODE=1 \
+ -DCMAKE_BUILD_TYPE=Release \
+ -DCMAKE_INSTALL_PREFIX="$INSTALL_PREFIX/SDL3" \
+ -DSDL_JOYSTICK=1 \
+ -DSDL_HAPTIC=1 \
+ -DSDL_HIDAPI=1 \
+ -DSDL_HIDAPI_JOYSTICK=1 \
+ -DSDL_POWER=1 \
+ -DSDL_SENSOR=1 \
+ -DSDL_AUDIO=0 \
+ -DSDL_VIDEO=0 \
+ -DSDL_RENDER=0 \
+ -DSDL_CAMERA=0 \
+ -DSDL_GPU=0 \
+ -DSDL_DIALOG=0 \
+ -DSDL_TRAY=0 \
+ -DSDL_DBUS=0 \
+ -DSDL_LIBUDEV=1 \
+ -DSDL_OPENGL=0 \
+ -DSDL_OPENGLES=0 \
+ -DSDL_VULKAN=0 \
+ -DSDL_PIPEWIRE=0 \
+ -DSDL_PULSEAUDIO=0 \
+ -DSDL_WAYLAND=0 \
+ -DSDL_X11=0 \
+ -DSDL_UNIX_CONSOLE_BUILD=1 \
+ -DSDL_IBUS=0 \
+ -DSDL_TEST_LIBRARY=0 \
+ -DSDL_TESTS=0 \
+ -DSDL_EXAMPLES=0 \
+ -DSDL_INSTALL_CPACK=0
+
+cmake --build sdl3-build
+cmake --build sdl3-build --target install/strip
diff --git a/Linux/build-all.sh b/Linux/build-all.sh
index 3ddd3e2..efb6605 100755
--- a/Linux/build-all.sh
+++ b/Linux/build-all.sh
@@ -21,6 +21,7 @@ build_media() {
   ./ffmpeg.sh
   ./fftw.sh
   ./sdl.sh
+  ./sdl3.sh
   ./portaudio.sh
   ./jack.sh
   ./pipewire.sh
diff --git a/Linux/sdl3.sh b/Linux/sdl3.sh
new file mode 100755
index 0000000..06e2748
--- /dev/null
+++ b/Linux/sdl3.sh
@@ -0,0 +1,47 @@
+#!/bin/bash
+
+source ./common.sh clang
+source ./common/clone-sdl3.sh
+
+export CFLAGS="${CFLAGS:-} -DSDL_DYNAMIC_API=0"
+export CXXFLAGS="${CXXFLAGS:-} -DSDL_DYNAMIC_API=0"
+
+cmake -S SDL3-$SDL3_VERSION -B sdl3-build \
+-GNinja \
+-DSDL_STATIC=1 \
+-DSDL_SHARED=0 \
+-DBUILD_SHARED_LIBS=0 \
+-DCMAKE_POSITION_INDEPENDENT_CODE=1 \
+-DCMAKE_BUILD_TYPE=Release \
+-DCMAKE_INSTALL_PREFIX="$INSTALL_PREFIX/SDL3" \
+-DSDL_JOYSTICK=1 \
+-DSDL_HAPTIC=1 \
+-DSDL_HIDAPI=1 \
+-DSDL_HIDAPI_JOYSTICK=1 \
+-DSDL_POWER=1 \
+-DSDL_SENSOR=1 \
+-DSDL_AUDIO=0 \
+-DSDL_VIDEO=0 \
+-DSDL_RENDER=0 \
+-DSDL_CAMERA=0 \
+-DSDL_GPU=0 \
+-DSDL_DIALOG=0 \
+-DSDL_TRAY=0 \
+-DSDL_DBUS=0 \
+-DSDL_LIBUDEV=1 \
+-DSDL_OPENGL=0 \
+-DSDL_OPENGLES=0 \
+-DSDL_VULKAN=0 \
+-DSDL_PIPEWIRE=0 \
+-DSDL_PULSEAUDIO=0 \
+-DSDL_WAYLAND=0 \
+-DSDL_X11=0 \
+-DSDL_UNIX_CONSOLE_BUILD=1 \
+-DSDL_IBUS=0 \
+-DSDL_TEST_LIBRARY=0 \
+-DSDL_TESTS=0 \
+-DSDL_EXAMPLES=0 \
+-DSDL_INSTALL_CPACK=0
+
+cmake --build sdl3-build
+cmake --build sdl3-build --target install/strip
diff --git a/MSYS/all.sh b/MSYS/all.sh
index 720997d..01e564c 100644
--- a/MSYS/all.sh
+++ b/MSYS/all.sh
@@ -32,6 +32,7 @@ build_media() {
   ./fftw.sh
   ./portaudio.sh
   ./sdl.sh
+  ./sdl3.sh
   ./faust.sh
   ./jack.sh
   ./dnssd.sh
diff --git a/MSYS/sdl3.sh b/MSYS/sdl3.sh
new file mode 100755
index 0000000..444e41b
--- /dev/null
+++ b/MSYS/sdl3.sh
@@ -0,0 +1,42 @@
+#!/bin/bash
+
+source ./common.sh
+source ../common/clone-sdl3.sh
+
+rm -rf sdl3-build
+mkdir sdl3-build
+
+export CFLAGS="${CFLAGS:-} -DSDL_DYNAMIC_API=0"
+export CXXFLAGS="${CXXFLAGS:-} -DSDL_DYNAMIC_API=0"
+
+cmake  -S SDL3-$SDL3_VERSION -B sdl3-build \
+-GNinja \
+ -DSDL_STATIC=1 \
+ -DSDL_SHARED=0 \
+ -DBUILD_SHARED_LIBS=0 \
+ -DCMAKE_POSITION_INDEPENDENT_CODE=1 \
+ -DCMAKE_BUILD_TYPE=Release \
+ -DCMAKE_INSTALL_PREFIX=$INSTALL_PREFIX_CMAKE/SDL3 \
+ -DSDL_JOYSTICK=1 \
+ -DSDL_HAPTIC=1 \
+ -DSDL_HIDAPI=1 \
+ -DSDL_HIDAPI_JOYSTICK=1 \
+ -DSDL_POWER=1 \
+ -DSDL_SENSOR=1 \
+ -DSDL_AUDIO=0 \
+ -DSDL_VIDEO=1 \
+ -DSDL_RENDER=0 \
+ -DSDL_CAMERA=0 \
+ -DSDL_GPU=0 \
+ -DSDL_DIALOG=0 \
+ -DSDL_TRAY=0 \
+ -DSDL_OPENGL=0 \
+ -DSDL_OPENGLES=0 \
+ -DSDL_VULKAN=0 \
+ -DSDL_TEST_LIBRARY=0 \
+ -DSDL_TESTS=0 \
+ -DSDL_EXAMPLES=0 \
+ -DSDL_INSTALL_CPACK=0
+
+cmake --build sdl3-build
+cmake --build sdl3-build --target install/strip
diff --git a/README.md b/README.md
index 9572e87..e888678 100644
--- a/README.md
+++ b/README.md
@@ -10,5 +10,5 @@ The dependencies are built statically on every platform and very up-to-date
 - PortAudio
 - FFTW
 - JACK
-- SDL
+- SDL2 and SDL3
 
diff --git a/common/clone-sdl3.sh b/common/clone-sdl3.sh
new file mode 100644
index 0000000..da9f62c
--- /dev/null
+++ b/common/clone-sdl3.sh
@@ -0,0 +1,15 @@
+#!/bin/bash -eu
+
+source ../common/versions.sh
+
+if command -v gsed; then
+  SED=gsed
+else
+  SED=sed
+fi
+
+if [[ ! -d SDL3-$SDL3_VERSION ]]; then
+  curl -ksSLOJ "https://github.com/libsdl-org/SDL/releases/download/release-$SDL3_VERSION/SDL3-$SDL3_VERSION.tar.gz"
+  tar xzf SDL3-$SDL3_VERSION.tar.gz
+  $SED -i '/error Nope/d' "SDL3-$SDL3_VERSION/src/dynapi/SDL_dynapi.h"
+fi
diff --git a/common/versions.sh b/common/versions.sh
index b27561a..4f1941d 100644
--- a/common/versions.sh
+++ b/common/versions.sh
@@ -1,4 +1,13 @@
+# SDL2 is transitional: libossia's joystick/game-controller/audio backends and
+# its find_package(SDL2) still speak the SDL2 API, so an SDL3-only SDK would flip
+# OSSIA_ENABLE_SDL off and drop the joystick protocol and the SDL audio engine
+# from the releases -- silently, since score_assert_feature is a no-op today.
+# Both SDLs are therefore installed side by side ($INSTALL_PREFIX/SDL2 and
+# $INSTALL_PREFIX/SDL3) so an SDK tag stays consumable by today's score while the
+# port happens in libossia. Drop SDL_VERSION and every sdl.sh once libossia is on
+# SDL3.
 export SDL_VERSION=2.32.10
+export SDL3_VERSION=3.4.14
 export FFMPEG_VERSION=8.1
 # emsdk pin for the WASM SDK. Must match Qt's QT_EMCC_RECOMMENDED_VERSION for
 # $QT_VERSION (qtbase/cmake/QtPublicWasmToolchainHelpers.cmake); still 5.0.5 on
diff --git a/macOS/all.sh b/macOS/all.sh
index e08fd37..7b67d9d 100755
--- a/macOS/all.sh
+++ b/macOS/all.sh
@@ -20,6 +20,7 @@ build_media() {
   # ./sndfile.sh
   # ./portaudio.sh
   ./sdl.sh
+  ./sdl3.sh
   ./jack.sh
   ./faust.sh      # needs llvm-config from the core's $INSTALL_PREFIX/llvm-libs
   ./ysfx.sh
diff --git a/macOS/sdl3.sh b/macOS/sdl3.sh
new file mode 100755
index 0000000..e3bce54
--- /dev/null
+++ b/macOS/sdl3.sh
@@ -0,0 +1,47 @@
+#!/bin/bash -eu
+
+source ./common.sh
+source ../common/clone-sdl3.sh
+
+export CFLAGS="${CFLAGS:-} -fno-fast-math -DSDL_DYNAMIC_API=0"
+export CXXFLAGS="${CXXFLAGS:-} -fno-fast-math -DSDL_DYNAMIC_API=0"
+
+xcrun cmake \
+ -S SDL3-$SDL3_VERSION \
+ -B sdl3-build \
+ -GNinja \
+ -DSDL_STATIC=1 \
+ -DSDL_SHARED=0 \
+ -DSDL_FRAMEWORK=0 \
+ -DBUILD_SHARED_LIBS=0 \
+ -DCMAKE_POSITION_INDEPENDENT_CODE=1 \
+ -DCMAKE_DISABLE_PRECOMPILE_HEADERS=1 \
+ -DCMAKE_BUILD_TYPE=Release \
+ -DCMAKE_OSX_SYSROOT=$MACOS_SYSROOT \
+ -DCMAKE_OSX_DEPLOYMENT_TARGET=$MACOS_VERSION \
+ -DCMAKE_INSTALL_PREFIX=$INSTALL_PREFIX/SDL3 \
+ -DSDL_JOYSTICK=1 \
+ -DSDL_HAPTIC=1 \
+ -DSDL_HIDAPI=1 \
+ -DSDL_HIDAPI_JOYSTICK=1 \
+ -DSDL_POWER=1 \
+ -DSDL_SENSOR=1 \
+ -DSDL_AUDIO=0 \
+ -DSDL_VIDEO=0 \
+ -DSDL_RENDER=0 \
+ -DSDL_CAMERA=0 \
+ -DSDL_GPU=0 \
+ -DSDL_DIALOG=0 \
+ -DSDL_TRAY=0 \
+ -DSDL_METAL=0 \
+ -DSDL_OPENGL=0 \
+ -DSDL_OPENGLES=0 \
+ -DSDL_VULKAN=0 \
+ -DSDL_TEST_LIBRARY=0 \
+ -DSDL_TESTS=0 \
+ -DSDL_EXAMPLES=0 \
+ -DSDL_INSTALL_CPACK=0 \
+  $CMAKE_ADDITIONAL_FLAGS
+
+xcrun cmake --build sdl3-build
+xcrun cmake --build sdl3-build --target install/strip