diff --git a/bin/aarch64-unknown-redox-llvm-config b/bin/aarch64-unknown-redox-llvm-config
new file mode 120000
index 00000000..a118f6a9
--- /dev/null
+++ b/bin/aarch64-unknown-redox-llvm-config
@@ -0,0 +1 @@
+x86_64-unknown-redox-llvm-config
\ No newline at end of file
diff --git a/bin/x86_64-unknown-redox-llvm-config b/bin/x86_64-unknown-redox-llvm-config
index a0f050e7..d790ccf9 100755
--- a/bin/x86_64-unknown-redox-llvm-config
+++ b/bin/x86_64-unknown-redox-llvm-config
@@ -2,16 +2,15 @@
 
 # This script wraps llvm-config that intended for cross compiling to Redox.
 # Because we can't run llvm-config compiled to Redox, we wrap it here.
-# Any recipes that calls this script must have "host:llvm.runtime" available.
 
 import os
 import sys
 import subprocess
 
-LLVM_CONFIG = "/usr/bin/llvm-config" 
+LLVM_CONFIG = "/bin/llvm-config" 
 
 def main():
-    toolchain_path = os.environ.get("COOKBOOK_TOOLCHAIN")
+    toolchain_path = os.environ.get("COOKBOOK_HOST_SYSROOT")
     sysroot_path = os.environ.get("COOKBOOK_SYSROOT")
 
     if not toolchain_path or not sysroot_path:
diff --git a/mk/prefix.mk b/mk/prefix.mk
index d237d536..9f129389 100644
--- a/mk/prefix.mk
+++ b/mk/prefix.mk
@@ -36,7 +36,7 @@ static_clean: | $(FSTOOLS_TAG)
 	$(MAKE) c.bash,luajit,gettext,openssl1,pcre2,sdl1,zstd,zlib,bzip2,xz
 	$(MAKE) c.expat,freetype2,libffi,libiconv,libjpeg,liborbital,libpng,libxml2,ncurses,ncursesw
 
-$(PREFIX)/relibc-install: $(PREFIX)/rust-install $(PREFIX)/gcc-install | $(FSTOOLS_TAG) $(CONTAINER_TAG)
+$(PREFIX)/relibc-install: $(PREFIX)/clang-install $(PREFIX)/rust-install $(PREFIX)/gcc-install | $(FSTOOLS_TAG) $(CONTAINER_TAG)
 ifeq ($(PODMAN_BUILD),1)
 	$(PODMAN_RUN) make $@
 else
@@ -45,6 +45,7 @@ else
 	mkdir "$@.partial"
 	cp -r "$(PREFIX)/gcc-install/". "$@.partial"
 	cp -r "$(PREFIX)/rust-install/". "$@.partial"
+	cp -r "$(PREFIX)/clang-install/". "$@.partial"
 	rm -rf "$@.partial/$(GNU_TARGET)/include/"*
 	cp -r "$(PREFIX)/gcc-install/$(GNU_TARGET)/include/c++" "$@.partial/$(GNU_TARGET)/include/c++"
 	export PATH="$(ROOT)/$@.partial/bin:$$PATH" && \
@@ -254,6 +255,7 @@ $(PREFIX_RUST_VERSION_TAG):
 	rm -f "$(PREFIX)"/rust-std-host-install.tar.xz
 	rm -f "$(PREFIX)"/rust-std-target-install.tar.xz
 	rm -f "$(PREFIX)"/rust-src-install.tar.xz:
+	mkdir -p "$(@D)"
 	touch $@
 
 $(PREFIX)/rustc-install.tar.xz: | $(PREFIX_RUST_VERSION_TAG)
@@ -364,7 +366,10 @@ else
 	export PATH="$(ROOT)/$(PREFIX)/libtool-install/bin:$$PATH" \
 		$(PREFIX_CONFIG) COOKBOOK_HOST_SYSROOT=/usr COOKBOOK_CROSS_TARGET=$(TARGET) && \
 		./target/release/repo cook host:llvm21 host:clang21 host:lld21
-# skipping dev, while llvm libraries is already in rust
+# skipping dev, llvm libraries is already in rust if building
+ifeq ($(PREFIX_USE_UPSTREAM_RUST_COMPILER),1)
+	cp -r "$(LLVM_TARGET)/stage/usr/". "$@.partial"
+endif
 	cp -r "$(LLVM_TARGET)/stage.runtime/usr/". "$@.partial"
 	cp -r "$(CLANG_TARGET)/stage/usr/". "$@.partial"
 	cp -r "$(LLD_TARGET)/stage/usr/". "$@.partial"
diff --git a/recipes/dev/clang21/recipe.toml b/recipes/dev/clang21/recipe.toml
index 3aa91f19..5c271acd 100644
--- a/recipes/dev/clang21/recipe.toml
+++ b/recipes/dev/clang21/recipe.toml
@@ -10,12 +10,6 @@ dev-dependencies = [
     "libstdcxx", # no idea
     "llvm21.dev",
     "llvm21.runtime",
-    "host:llvm21",
-    "host:llvm21.dev",
-    "host:llvm21.runtime",
-    "host:clang21", # for clang-tblgen
-    "host:xz",
-    "host:libarchive",  # workaround for cmake error
 ]
 script = """
 DYNAMIC_INIT
@@ -26,7 +20,6 @@ generate_cookbook_cmake_file $COOKBOOK_HOST_TARGET "" "$COOKBOOK_TOOLCHAIN" nati
 COOKBOOK_CMAKE_FLAGS+=(
     -DLLVM_ROOT="${COOKBOOK_SYSROOT}"
     -DCLANG_LINK_CLANG_DYLIB=ON
-    -DLLVM_TABLEGEN_EXE=${COOKBOOK_TOOLCHAIN}/bin/llvm-tblgen
     -DLIBCLANG_BUILD_STATIC=1
     -DLLVM_BUILD_UTILS=On
 
@@ -52,6 +45,8 @@ COOKBOOK_SOURCE="$COOKBOOK_SOURCE/clang"
 
 if [ "$TARGET" = "$COOKBOOK_HOST_TARGET" ]; then
 
+    COOKBOOK_CMAKE_FLAGS+=( -DLLVM_TABLEGEN_EXE=${COOKBOOK_TOOLCHAIN}/bin/llvm-tblgen )
+
     "${COOKBOOK_CMAKE}" "${COOKBOOK_SOURCE}" \
         -DCMAKE_BUILD_TYPE=Release \
         -DCMAKE_INSTALL_INCLUDEDIR=include \
@@ -75,7 +70,8 @@ else
 
     COOKBOOK_CMAKE_FLAGS+=(
         -DCROSS_TOOLCHAIN_FLAGS_NATIVE="-DCMAKE_TOOLCHAIN_FILE=$(realpath native.cmake)"
-        -DCLANG_TABLEGEN_EXE=${COOKBOOK_TOOLCHAIN}/bin/clang-tblgen
+        -DCLANG_TABLEGEN_EXE=${COOKBOOK_HOST_SYSROOT}/bin/clang-tblgen
+        -DLLVM_TABLEGEN_EXE=${COOKBOOK_HOST_SYSROOT}/bin/llvm-tblgen
     )
     cookbook_cmake
 
diff --git a/recipes/dev/lld21/recipe.toml b/recipes/dev/lld21/recipe.toml
index e15dc327..65f3b289 100644
--- a/recipes/dev/lld21/recipe.toml
+++ b/recipes/dev/lld21/recipe.toml
@@ -10,11 +10,6 @@ dependencies = [
 dev-dependencies = [
     "llvm21.dev",
     "llvm21.runtime",
-    "host:llvm21",
-    "host:llvm21.dev",
-    "host:llvm21.runtime",
-    "host:xz",
-    "host:libarchive",  # workaround for cmake error
 ]
 script = """
 DYNAMIC_INIT
@@ -22,10 +17,15 @@ ARCH="$(echo "${TARGET}" | cut -d - -f1)"
 
 generate_cookbook_cmake_file $COOKBOOK_HOST_TARGET "" "$COOKBOOK_TOOLCHAIN" native.cmake
 
+if [ "$TARGET" = "$COOKBOOK_HOST_TARGET" ]; then
+COOKBOOK_CMAKE_FLAGS+=( -DLLVM_TABLEGEN_EXE=${COOKBOOK_TOOLCHAIN}/bin/llvm-tblgen )
+else
+COOKBOOK_CMAKE_FLAGS+=( -DLLVM_TABLEGEN_EXE=${COOKBOOK_HOST_SYSROOT}/bin/llvm-tblgen )
+fi
+
 COOKBOOK_CMAKE_FLAGS+=(
     -DLLVM_ROOT="${COOKBOOK_SYSROOT}"
     -DCROSS_TOOLCHAIN_FLAGS_NATIVE="-DCMAKE_TOOLCHAIN_FILE=$(realpath native.cmake)"
-    -DLLVM_TABLEGEN_EXE=${COOKBOOK_TOOLCHAIN}/bin/llvm-tblgen
 
 # the shared options from llvm
     -DCMAKE_CXX_FLAGS="--std=gnu++11"
diff --git a/recipes/dev/rust/recipe.toml b/recipes/dev/rust/recipe.toml
index f5e5619c..f5ad66af 100644
--- a/recipes/dev/rust/recipe.toml
+++ b/recipes/dev/rust/recipe.toml
@@ -15,9 +15,6 @@ dev-dependencies = [
     "llvm21.dev",
     "llvm21.runtime",
     "lld21",
-    "host:llvm21",
-    "host:llvm21.dev",
-    "host:llvm21.runtime",
 ]
 
 script = """
diff --git a/recipes/libs/mesa/recipe.toml b/recipes/libs/mesa/recipe.toml
index a94a2523..6d23ee12 100644
--- a/recipes/libs/mesa/recipe.toml
+++ b/recipes/libs/mesa/recipe.toml
@@ -14,8 +14,6 @@ dependencies = [
 ]
 dev-dependencies = [
     "llvm21.dev",
-    "host:llvm21.dev",
-    "host:llvm21.runtime",
 ]
 script = """
 DYNAMIC_INIT
diff --git a/recipes/wip/dev/lang/dotnet8/recipe.toml b/recipes/wip/dev/lang/dotnet8/recipe.toml
index 7a324677..60f24e3b 100644
--- a/recipes/wip/dev/lang/dotnet8/recipe.toml
+++ b/recipes/wip/dev/lang/dotnet8/recipe.toml
@@ -15,8 +15,3 @@ dependencies = [
     "kerberos5",
     "zlib",
 ]
-dev-dependencies = [
-    "host:clang21",
-    "host:lld21",
-    "host:llvm21.dev",
-]
diff --git a/recipes/wip/net/onion-routing/tor-browser/recipe.toml b/recipes/wip/net/onion-routing/tor-browser/recipe.toml
index 63243963..59e2e024 100644
--- a/recipes/wip/net/onion-routing/tor-browser/recipe.toml
+++ b/recipes/wip/net/onion-routing/tor-browser/recipe.toml
@@ -35,12 +35,6 @@ dependencies = [
     # "libepoxy",
     # "pipewire",
 ]
-dev-dependencies = [
-    "host:llvm21",
-    "host:llvm21.dev",
-    "host:llvm21.runtime",
-    "host:clang21",
-]
 script = """
 DYNAMIC_INIT
 
diff --git a/recipes/wip/web/firefox-esr/recipe.toml b/recipes/wip/web/firefox-esr/recipe.toml
index 31dc6f26..54947da8 100644
--- a/recipes/wip/web/firefox-esr/recipe.toml
+++ b/recipes/wip/web/firefox-esr/recipe.toml
@@ -37,12 +37,6 @@ dependencies = [
     # "libepoxy",
     # "pipewire",
 ]
-dev-dependencies = [
-    "host:llvm21",
-    "host:llvm21.dev",
-    "host:llvm21.runtime",
-    "host:clang21",
-]
 script = """
 DYNAMIC_INIT
 
diff --git a/recipes/wip/web/servo/recipe.toml b/recipes/wip/web/servo/recipe.toml
index 17d42d0b..71253490 100644
--- a/recipes/wip/web/servo/recipe.toml
+++ b/recipes/wip/web/servo/recipe.toml
@@ -12,12 +12,6 @@ dependencies = [
     "mesa",
     "zlib",
 ]
-dev-dependencies = [
-    "llvm21.dev",
-    "host:llvm21.dev",
-    "host:llvm21.runtime",
-    "host:libarchive",  # workaround for cmake error
-]
 script = """
 DYNAMIC_INIT
 
@@ -41,7 +35,6 @@ export CLANGFLAGS="-I $PREFIX_INCLUDE/c++/13.2.0 -I $PREFIX_INCLUDE/c++/13.2.0/$
 #Mozjs specifics
 unset CC_WRAPPER
 export CARGO_MAKEFLAGS="-j $COOKBOOK_MAKE_JOBS" CCACHE="sccache"
-unset CC_WRAPPER
 
 PACKAGE_PATH="ports/servoshell" cookbook_cargo
 
diff --git a/recipes/wip/x11/mesa-x11/recipe.toml b/recipes/wip/x11/mesa-x11/recipe.toml
index 67f6452b..dfb07c14 100644
--- a/recipes/wip/x11/mesa-x11/recipe.toml
+++ b/recipes/wip/x11/mesa-x11/recipe.toml
@@ -18,8 +18,6 @@ dependencies = [
 ]
 dev-dependencies = [
     "llvm21.dev",
-    "host:llvm21.dev",
-    "host:llvm21.runtime",
 ]
 
 script = """