Red Bear OS — microkernel OS in Rust, based on Redox

Derivative of Redox OS (https://www.redox-os.org) adding:
- AMD GPU driver (amdgpu) via LinuxKPI compat layer
- ext4 filesystem support (ext4d scheme daemon)
- ACPI fixes for AMD bare metal (x2APIC, DMAR, IVRS, MCFG)
- Custom branding (hostname, os-release, boot identity)

Build system is full upstream Redox with RBOS overlay in local/.
Patches for kernel, base, and relibc are symlinked from local/patches/
and protected from make clean/distclean. Custom recipes live in
local/recipes/ with symlinks into the recipes/ search path.

Build:  make all CONFIG_NAME=redbear-full
Sync:   ./local/scripts/sync-upstream.sh

recipes/wip/emu/game-console/mupen64plus/recipe.toml

@@ -0,0 +1,33 @@
+#TODO not compiled or tested
+[source]
+tar = "https://github.com/mupen64plus/mupen64plus-core/releases/download/2.6.0/mupen64plus-bundle-src-2.6.0.tar.gz"
+[build]
+template = "custom"
+dependencies = [
+    "freetype2",
+    "liborbital",
+    "libpng",
+    "mesa",
+    "mesa-glu",
+    "sdl2",
+    "zlib",
+]
+script = """
+rsync -av --delete "${COOKBOOK_SOURCE}/" ./
+#TODO: support Redox in UNAME
+"${COOKBOOK_MAKE}" \
+    CROSS_COMPILE="${TARGET}-" \
+    GLES_LIB="" \
+    GL_CFLAGS="$("${TARGET}-pkg-config" --cflags osmesa)" \
+    GL_LDLIBS="$("${TARGET}-pkg-config" --libs osmesa)" \
+    HOST_CPU="${TARGET%%-*}" \
+    SDL_CFLAGS="$("${TARGET}-pkg-config" --cflags sdl2)" \
+    SDL_LDFLAGS="$("${TARGET}-pkg-config" --libs sdl2)" \
+    UNAME=Linux \
+    USE_GLES=1 \
+    V=1 \
+    VULKAN=0 \
+    -C projects/unix \
+    -j "${COOKBOOK_MAKE_JOBS}" \
+    all
+"""