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/web/netsurf/01_redox.patch

@@ -0,0 +1,140 @@
+diff -ruwN source/Makefile source-new/Makefile
+--- source/Makefile	2023-12-28 07:57:05.071795200 +0700
++++ source-new/Makefile	2025-07-20 11:58:36.652747547 +0700
+@@ -110,7 +110,7 @@
+ 
+ # prefixed install macro for each host sub target
+ define do_build_prefix_install
+-	$(MAKE) install --directory=$1 HOST=$(BUILD) PREFIX=$(TMP_PREFIX) Q=$(Q) DESTDIR=
++	$(MAKE) install --directory=$1 HOST=$(BUILD) PREFIX=$(TMP_PREFIX) Q=$(Q) DESTDIR= CC=cc LDFLAGS=
+ 
+ endef
+ 
+diff -ruwN source/buildsystem/makefiles/Makefile.tools source-new/buildsystem/makefiles/Makefile.tools
+--- source/buildsystem/makefiles/Makefile.tools	2023-12-28 07:57:21.479359900 +0700
++++ source-new/buildsystem/makefiles/Makefile.tools	2025-07-20 11:58:36.662747547 +0700
+@@ -135,7 +135,7 @@
+   endif
+ 
+   # Search the path for the compiler
+-  toolpath_ := $(shell /bin/which $(CC__))
++  toolpath_ := $(shell which $(CC__))
+   ifeq ($(toolpath_),)
+     toolpath_ := /opt/netsurf/$(HOST)/cross/bin/
+     CC__  := $(toolpath_)$(HOST)-gcc
+diff -ruwN source/buildsystem/makefiles/Makefile.top source-new/buildsystem/makefiles/Makefile.top
+--- source/buildsystem/makefiles/Makefile.top	2023-12-28 07:57:21.479359900 +0700
++++ source-new/buildsystem/makefiles/Makefile.top	2025-07-20 11:58:36.662747547 +0700
+@@ -462,7 +462,7 @@
+ 
+   define build_c
+     ifeq ($$(findstring $$(BUILDDIR)/$2,$$(BUILDFILES)),)
+-      $$(BUILDDIR)/$2: $$(BUILDDIR)/stamp $1
++      $$(BUILDDIR)/$2: $$(BUILDDIR)/stamp $1 | $$(PRE_TARGETS)
+ 	$$(VQ)$$(ECHO) $$(ECHOFLAGS) " COMPILE: $1"
+ 	$$(Q)$$(CC) -MMD -MP $$($3) -o $$@ -c $1
+ 
+diff -ruwN source/libnsfb/Makefile source-new/libnsfb/Makefile
+--- source/libnsfb/Makefile	2023-12-28 07:57:22.311338000 +0700
++++ source-new/libnsfb/Makefile	2025-07-20 11:58:36.652747547 +0700
+@@ -43,10 +43,10 @@
+ NSFB_XCB_PKG_NAMES := xcb xcb-icccm xcb-image xcb-keysyms xcb-atom
+ 
+ # determine which surface handlers can be compiled based upon avalable library
+-$(eval $(call pkg_config_package_available,NSFB_VNC_AVAILABLE,libvncserver))
++#$(eval $(call pkg_config_package_available,NSFB_VNC_AVAILABLE,libvncserver))
+ $(eval $(call pkg_config_package_available,NSFB_SDL_AVAILABLE,sdl))
+-$(eval $(call pkg_config_package_available,NSFB_XCB_AVAILABLE,$(NSFB_XCB_PKG_NAMES)))
+-$(eval $(call pkg_config_package_available,NSFB_WLD_AVAILABLE,wayland-client))
++#$(eval $(call pkg_config_package_available,NSFB_XCB_AVAILABLE,$(NSFB_XCB_PKG_NAMES)))
++#$(eval $(call pkg_config_package_available,NSFB_WLD_AVAILABLE,wayland-client))
+ 
+ # Flags and setup for each support library
+ ifeq ($(NSFB_SDL_AVAILABLE),yes)
+diff -ruwN source/libnsfb/src/plot.h source-new/libnsfb/src/plot.h
+--- source/libnsfb/src/plot.h	2023-12-28 07:57:22.315338000 +0700
++++ source-new/libnsfb/src/plot.h	2025-07-20 11:58:36.652747547 +0700
+@@ -46,7 +46,7 @@
+         #error "Endian determination failed"
+     #endif
+ #else
+-    #include <endian.h>
++    #include <machine/endian.h>
+     #if defined(__BYTE_ORDER__)
+         #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+             #define NSFB_BE_BYTE_ORDER
+diff -ruwN source/netsurf/Makefile.config source-new/netsurf/Makefile.config
+--- source/netsurf/Makefile.config	1970-01-01 07:00:00.000000000 +0700
++++ source-new/netsurf/Makefile.config	2025-07-20 11:58:36.652747547 +0700
+@@ -0,0 +1,28 @@
++override NETSURF_HOMEPAGE := "https://www.redox-os.org/"
++override NETSURF_FB_FRONTEND := sdl
++
++override NETSURF_USE_JPEG := YES
++override NETSURF_USE_BMP := YES
++override NETSURF_USE_OPENSSL := YES
++override NETSURF_USE_CURL := YES
++override NETSURF_USE_PNG := YES
++
++override NETSURF_USE_LIBICONV_PLUG := NO
++override NETSURF_USE_NSSVG := NO
++override NETSURF_USE_RSVG := NO
++override NETSURF_USE_DUKTAPE := YES
++override NETSURF_USE_HARU_PDF := NO
++override NETSURF_USE_VIDEO := NO
++
++override NETSURF_FB_FONTLIB := freetype
++override NETSURF_FB_FONTPATH := /usr/share/fonts/
++override NETSURF_FB_FONT_SANS_SERIF := Sans/Fira/Regular.ttf
++override NETSURF_FB_FONT_SANS_SERIF_BOLD := Sans/Fira/Bold.ttf
++override NETSURF_FB_FONT_SANS_SERIF_ITALIC := Sans/Fira/Regular.ttf
++override NETSURF_FB_FONT_SANS_SERIF_ITALIC_BOLD := Sans/Fira/Bold.ttf
++override NETSURF_FB_FONT_SERIF := Sans/Fira/Regular.ttf
++override NETSURF_FB_FONT_SERIF_BOLD := Sans/Fira/Bold.ttf
++override NETSURF_FB_FONT_MONOSPACE := Mono/Fira/Regular.ttf
++override NETSURF_FB_FONT_MONOSPACE_BOLD := Mono/Fira/Bold.ttf
++override NETSURF_FB_FONT_CURSIVE := Sans/Fira/Regular.ttf
++override NETSURF_FB_FONT_FANTASY := Sans/Fira/Regular.ttf
+diff -ruwN source/netsurf/frontends/framebuffer/Makefile source-new/netsurf/frontends/framebuffer/Makefile
+--- source/netsurf/frontends/framebuffer/Makefile	2023-12-28 07:57:22.987320000 +0700
++++ source-new/netsurf/frontends/framebuffer/Makefile	2025-07-20 11:58:36.662747547 +0700
+@@ -200,7 +200,7 @@
+ install-framebuffer:
+ 	$(VQ)echo " INSTALL: $(DESTDIR)/$(PREFIX)"
+ 	$(Q)$(INSTALL) -d $(DESTDIR)/$(NETSURF_FRAMEBUFFER_BIN)
+-	$(Q)$(INSTALL) -T $(EXETARGET) $(DESTDIR)/$(NETSURF_FRAMEBUFFER_BIN)/netsurf-fb
++	$(Q)$(INSTALL) $(EXETARGET) $(DESTDIR)/$(NETSURF_FRAMEBUFFER_BIN)/netsurf-fb
+ 	$(Q)$(INSTALL) -d $(DESTDIR)/$(NETSURF_FRAMEBUFFER_RESOURCES)
+ 	$(Q)for F in $(NETSURF_FRAMEBUFFER_RESOURCE_LIST); do $(INSTALL) -m 644 $(FRONTEND_RESOURCES_DIR)/$$F $(DESTDIR)/$(NETSURF_FRAMEBUFFER_RESOURCES); done
+ 	$(Q)$(INSTALL) -m 644 -T $(MESSAGES_TARGET)/en/Messages $(DESTDIR)/$(NETSURF_FRAMEBUFFER_RESOURCES)/Messages
+diff -ruwN source/netsurf/utils/config.h source-new/netsurf/utils/config.h
+--- source/netsurf/utils/config.h	2023-12-28 07:57:23.095317100 +0700
++++ source-new/netsurf/utils/config.h	2025-07-20 12:12:51.782724549 +0700
+@@ -63,7 +63,8 @@
+      defined(__BEOS__) ||     \
+      defined(__amigaos4__) || \
+      defined(__AMIGA__) ||    \
+-     defined(__MINT__))
++     defined(__MINT__) ||    \
++     defined(__redox__))
+ #undef HAVE_STRPTIME
+ #undef HAVE_STRFTIME
+ #else
+@@ -136,7 +137,7 @@
+ #endif
+ 
+ #define HAVE_MMAP
+-#if (defined(_WIN32) || defined(__riscos__) || defined(__HAIKU__) || defined(__BEOS__) || defined(__amigaos4__) || defined(__AMIGA__) || defined(__MINT__))
++#if (defined(_WIN32) || defined(__riscos__) || defined(__HAIKU__) || defined(__BEOS__) || defined(__amigaos4__) || defined(__AMIGA__) || defined(__MINT__) || defined(__redox__))
+ #undef HAVE_MMAP
+ #endif
+ 
+@@ -149,7 +150,7 @@
+ #define HAVE_DIRFD
+ #define HAVE_UNLINKAT
+ #define HAVE_FSTATAT
+-#if (defined(_WIN32) || defined(__riscos__) || defined(__HAIKU__) || defined(__BEOS__) || defined(__amigaos4__) || defined(__AMIGA__) || defined(__MINT__))
++#if (defined(_WIN32) || defined(__riscos__) || defined(__HAIKU__) || defined(__BEOS__) || defined(__amigaos4__) || defined(__AMIGA__) || defined(__MINT__) || defined(__redox__))
+ #undef HAVE_DIRFD
+ #undef HAVE_UNLINKAT
+ #undef HAVE_FSTATAT

recipes/web/netsurf/manifest

@@ -0,0 +1,6 @@
+name=Netsurf
+binary=/usr/bin/netsurf-fb
+icon=/ui/icons/apps/internet-web-browser.png
+accept=*.html
+author=The Netsurf Developers
+description=Browser for Redox

recipes/web/netsurf/recipe.toml

@@ -0,0 +1,53 @@
+[source]
+tar = "https://download.netsurf-browser.org/netsurf/releases/source-full/netsurf-all-3.11.tar.gz"
+blake3 = "cd406668a9ed5712efac1a8685125b83626690b73bbc6cb5de82ef00e3f65087"
+patches = [
+    "./01_redox.patch"
+]
+
+[build]
+template = "custom"
+dependencies = [
+    "curl",
+    "expat",
+    "libjpeg",
+    "libpng",
+    "nghttp2",
+    "openssl3",
+    "sdl1",
+    "zlib",
+    "freetype2",
+    "liborbital",
+    "libiconv"
+]
+dev-dependencies = [
+    "host:gperf"
+]
+script = """
+DYNAMIC_INIT
+
+# Netsurf does not currently support out-of-tree builds :(
+rsync -av --delete "${COOKBOOK_SOURCE}/" ./
+
+# obscure crash from sccache if jobs number is too much
+COOKBOOK_MAKE_JOBS="$(( ${COOKBOOK_MAKE_JOBS} > 8 ? 8 : ${COOKBOOK_MAKE_JOBS} ))"
+
+export TARGET="framebuffer"
+export CFLAGS="-I${PWD}/inst-${TARGET}/include"
+export LDFLAGS="${LDFLAGS} -L${COOKBOOK_SYSROOT}/lib -L${PWD}/inst-${TARGET}/lib -Wl,--allow-multiple-definition -Wl,-rpath-link,${COOKBOOK_SYSROOT}/lib"
+# nghttp2 is not linked for some reason
+export LDFLAGS="${LDFLAGS} -lcurl -lnghttp2"
+# netsurf mixes up CFLAGS for host and build
+export CC="${CC} ${CPPFLAGS}"
+
+"$COOKBOOK_MAKE" PREFIX=/usr V=1 -j"$COOKBOOK_MAKE_JOBS"
+"$COOKBOOK_MAKE" DESTDIR="$COOKBOOK_STAGE" PREFIX=/usr install -j"$COOKBOOK_MAKE_JOBS"
+mkdir -pv "$COOKBOOK_STAGE/ui/apps"
+cp -v "${COOKBOOK_RECIPE}/manifest" "$COOKBOOK_STAGE/ui/apps/00_netsurf"
+"""
+
+[package]
+dependencies = [
+    "ca-certificates",
+    "orbital",
+]

recipes/web/website/recipe.toml

@@ -0,0 +1,24 @@
+[source]
+git = "https://gitlab.redox-os.org/redox-os/website"
+[build]
+template = "custom"
+script = """
+export PATH="$HOME/.local/bin:$HOME/.local/opt/node/bin:$PATH"
+if ! command -v node &> /dev/null; then
+   echo "Installing Node via webi..."
+   curl -sS https://webi.sh/node | sh
+fi
+if ! command -v hugo &> /dev/null; then
+   echo "Installing Hugo via webi..."
+   curl -sS https://webi.sh/hugo | sh
+fi
+if ! command -v postcss &> /dev/null; then
+   echo "Installing PostCSS via npm..."
+   npm install -g postcss-cli
+fi
+
+rsync -a "${COOKBOOK_SOURCE}/" ./
+./hugo.sh
+mkdir -pv "${COOKBOOK_STAGE}"/usr/share/website
+cp -rv "${COOKBOOK_BUILD}"/build/public/* "${COOKBOOK_STAGE}"/usr/share/website
+"""