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/dev/composer/recipe.toml

@@ -0,0 +1,9 @@
+#TODO must be run using `php $(which composer)`
+[build]
+template = "custom"
+script = """
+mkdir -p "${COOKBOOK_STAGE}"/usr/bin
+wget -c https://getcomposer.org/download/2.8.12/composer.phar
+chmod a+x composer.phar
+cp composer.phar ${COOKBOOK_STAGE}/usr/bin/composer
+"""