fix: bundle SDL3 for linux

linux/CMakeLists.txt

@@ -70,6 +70,10 @@ set_target_properties(${BINARY_NAME}
 )
 
 
+# Bundle SDL3 from source so the build works on systems without libsdl3-dev
+# (e.g. arm64 Linux where no distro package exists yet).
+set(BUNDLE_SDL3 ON CACHE BOOL "" FORCE)
+
 # Generated plugin build rules, which manage building the plugins and adding
 # them to the application.
 include(flutter/generated_plugins.cmake)

linux/packaging/build-packages.py

@@ -39,7 +39,6 @@ DISTROS = {
             "libgtk-3-0",
             "libmpv2 | libmpv1",
             "libepoxy0",
-            "libsdl3-0",
             "libasound2",
             "libglib2.0-0",
         ],
@@ -54,7 +53,6 @@ DISTROS = {
             "gtk3",
             "mpv-libs",
             "libepoxy",
-            "SDL3",
             "alsa-lib",
             "glib2",
         ],
@@ -69,7 +67,6 @@ DISTROS = {
             "gtk3",
             "mpv",
             "libepoxy",
-            "sdl3",
             "alsa-lib",
             "glib2",
         ],