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/rustpython/recipe.toml

@@ -0,0 +1,30 @@
+[source]
+git = "https://github.com/RustPython/RustPython"
+# newer rev requires 'bits/libc-header-start.h' for bindgen
+rev = "2025-10-13-main-51"
+shallow_clone = true
+patches = [
+  "redox.patch"
+]
+
+[build]
+dependencies = [
+  "openssl3",
+  "zlib",
+]
+template = "custom"
+script = """
+DYNAMIC_INIT
+
+export BUILDTIME_RUSTPYTHONPATH=/lib/rustpython
+export OPENSSL_DIR="${COOKBOOK_SYSROOT}"
+export ZLIB_STATIC=1
+cookbook_cargo --features ssl
+mkdir -p "${COOKBOOK_STAGE}/lib"
+rsync -aE \
+  --exclude 'test/' \
+  --exclude '__pycache__/' \
+  --exclude '*.pyc' \
+  --exclude '/README.md' \
+  "${COOKBOOK_SOURCE}"/Lib/ "${COOKBOOK_STAGE}/lib/rustpython"
+"""