diff --git a/build.sh b/build.sh
index a0c2f8f..ee16d87 100755
--- a/build.sh
+++ b/build.sh
@@ -55,7 +55,7 @@ if [[ -n "${BUILD_SH_IN_MANYLINUX:-}" ]]; then
   if command -v dnf &>/dev/null; then
     dnf install -y -q \
       libX11-devel libXcursor-devel libXrandr-devel libXinerama-devel libXi-devel \
-      mesa-libGL-devel mesa-libEGL-devel mesa-libGLES-devel \
+      mesa-libGL-devel mesa-libEGL-devel mesa-libGLES-devel bison flex \
       wayland-devel wayland-protocols-devel libxkbcommon-devel
   fi
 fi
diff --git a/raylib/build.sh b/raylib/build.sh
index c9cbdeb..253db91 100755
--- a/raylib/build.sh
+++ b/raylib/build.sh
@@ -7,11 +7,7 @@ cd "$DIR"
 INSTALL_DIR="$DIR/raylib/install"
 
 NJOBS="$(nproc 2>/dev/null || sysctl -n hw.ncpu 2>/dev/null || echo 2)"
-if command -v ccache &>/dev/null; then
-  CC="ccache ${CC:-cc}"
-else
-  CC="${CC:-cc}"
-fi
+CC="ccache ${CC:-cc}" CXX="ccache ${CXX:-c++}"
 
 is_linux_aarch64() {
   [[ "$(uname)" == "Linux" && ( "$(uname -m)" == "aarch64" || "$(uname -m)" == "arm64" ) ]]
@@ -35,6 +31,8 @@ esac
 
 # Clone and build raylib C library
 RAYLIB_COMMIT="caa64e15ac20a47804a8048029c921ac091fef12"
+MESA_VERSION="26.2.1"
+LLVM_VERSION="22.1.8"
 
 if [ ! -d "raylib-src/.git" ]; then
   rm -rf raylib-src
@@ -91,6 +89,42 @@ for backend in $BACKENDS; do
   build_raylib "$(backend_platform "$backend")" "libraylib_${backend}.a"
 done
 
+if [ "$(uname)" == "Linux" ] && [[ " $BACKENDS " == *" headless "* ]]; then
+  if [ ! -d "llvm-src/.git" ]; then
+    rm -rf llvm-src
+    git clone --depth 1 --filter=blob:none --sparse https://github.com/llvm/llvm-project.git llvm-src
+    git -C llvm-src sparse-checkout set llvm cmake third-party
+  fi
+  git -C llvm-src fetch --depth 1 origin "llvmorg-$LLVM_VERSION"
+  git -C llvm-src checkout --force FETCH_HEAD
+  cmake -S llvm-src/llvm -B llvm-src/build -G Ninja -DCMAKE_MAKE_PROGRAM="$(command -v ninja)" -DCMAKE_BUILD_TYPE=MinSizeRel -DCMAKE_INSTALL_PREFIX="$DIR/llvm-src/prefix" \
+    -DLLVM_TARGETS_TO_BUILD=Native -DLLVM_BUILD_TOOLS=OFF -DLLVM_TOOL_LLVM_CONFIG_BUILD=ON -DLLVM_INCLUDE_TESTS=OFF \
+    -DLLVM_INCLUDE_EXAMPLES=OFF -DLLVM_INCLUDE_BENCHMARKS=OFF -DLLVM_INCLUDE_DOCS=OFF -DLLVM_ENABLE_BINDINGS=OFF \
+    -DLLVM_ENABLE_ZLIB=OFF -DLLVM_ENABLE_ZSTD=OFF -DLLVM_ENABLE_LIBXML2=OFF -DLLVM_ENABLE_FFI=OFF -DLLVM_ENABLE_LIBEDIT=OFF \
+    -DLLVM_ENABLE_ASSERTIONS=OFF -DLLVM_ENABLE_UNWIND_TABLES=OFF \
+    -DCMAKE_C_FLAGS="-ffunction-sections -fdata-sections" -DCMAKE_CXX_FLAGS="-ffunction-sections -fdata-sections" >/dev/null
+  ninja -C llvm-src/build install llvm-config >/dev/null
+  cp llvm-src/build/bin/llvm-config llvm-src/prefix/bin/
+
+  if [ ! -d "mesa-src/.git" ]; then
+    rm -rf mesa-src
+    git clone --depth 1 https://gitlab.freedesktop.org/mesa/mesa.git mesa-src
+  fi
+  git -C mesa-src fetch --depth 1 origin "mesa-$MESA_VERSION"
+  git -C mesa-src checkout --force FETCH_HEAD
+  CC="$CC" CXX="$CXX" PATH="$DIR/llvm-src/prefix/bin:$PATH" meson setup mesa-src mesa-src/build --reconfigure --prefix="$DIR/mesa-src/build/prefix" --libdir=lib \
+    -Db_ndebug=true -Dcpp_rtti=false -Dc_link_args=-Wl,--gc-sections -Dcpp_link_args=-Wl,--gc-sections \
+    -Dplatforms= -Degl=enabled -Dgles1=disabled -Dgles2=enabled -Dopengl=false -Dglx=disabled \
+    -Dgbm=disabled -Dglvnd=disabled -Dgallium-drivers=llvmpipe -Dvulkan-drivers= -Dshared-llvm=disabled \
+    -Dlibunwind=disabled -Dzstd=disabled -Dvalgrind=disabled -Dbuild-tests=false \
+    -Dxmlconfig=disabled -Dexpat=disabled -Dshader-cache=disabled
+  ninja -C mesa-src/build install >/dev/null
+  cp mesa-src/build/prefix/lib/{libEGL.so.1,libGLESv2.so.2,libgallium-$MESA_VERSION.so} "$INSTALL_DIR/lib/"
+  cp -L "$(cc -print-file-name=libdrm.so.2)" "$INSTALL_DIR/lib/"
+  patchelf --set-rpath '$ORIGIN' "$INSTALL_DIR"/lib/{libEGL.so.1,libGLESv2.so.2,libgallium-$MESA_VERSION.so}
+  strip "$INSTALL_DIR"/lib/*.so*
+fi
+
 # Download raygui header
 RAYGUI_COMMIT="1e03efca48c50c5ea4b4a053d5bf04bad58d3e43"
 curl -fsSLo "$INSTALL_DIR/include/raygui.h" \
diff --git a/raylib/build_cffi.py b/raylib/build_cffi.py
index e0350f1..257b409 100644
--- a/raylib/build_cffi.py
+++ b/raylib/build_cffi.py
@@ -88,7 +88,7 @@ def build_ffi():
   else:
     print("BUILDING FOR LINUX")
     extra_link_args = [
-      raylib_archive,
+      raylib_archive, f'-L{RAYLIB_LIB_PATH}', '-Wl,--as-needed',
       '-lm', '-lpthread', '-lrt', '-ldl', '-latomic',
       *BACKEND_LINK_ARGS[RAYLIB_BACKEND],
     ]
diff --git a/raylib/pyproject.toml b/raylib/pyproject.toml
index c23d4c2..3cd449b 100644
--- a/raylib/pyproject.toml
+++ b/raylib/pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ["setuptools>=70.1", "cffi>=1.17.1"]
+requires = ["setuptools>=70.1", "cffi>=1.17.1", "meson", "ninja", "mako", "pyyaml"]
 build-backend = "setuptools.build_meta"
 
 [project]
@@ -17,4 +17,4 @@ include = ["raylib", "pyray"]
 namespaces = false
 
 [tool.setuptools.package-data]
-raylib = ["_raylib_cffi*.so", "install/include/*.h", "install/lib/*.a"]
+raylib = ["_raylib_cffi*.so", "install/include/*.h", "install/lib/*.a", "install/lib/*.so*"]
diff --git a/raylib/raylib/__init__.py b/raylib/raylib/__init__.py
index 25a1724..67f0423 100644
--- a/raylib/raylib/__init__.py
+++ b/raylib/raylib/__init__.py
@@ -1,7 +1,7 @@
 import importlib
 import os
 
-from ._backend import BACKEND_ARCHIVES, BACKEND_CFFI_MODULES, detect_backend, host_backends
+from ._backend import BACKEND_ARCHIVES, BACKEND_CFFI_MODULES, HEADLESS, detect_backend, host_backends
 from .version import __version__
 
 DIR = os.path.join(os.path.dirname(__file__), "install")
@@ -25,6 +25,12 @@ def smoketest():
     assert os.path.isfile(os.path.join(INCLUDE_DIR, header)), f"{header} not found"
   for archive in _expected_archives():
     assert os.path.isfile(os.path.join(LIB_DIR, archive)), f"{archive} not found"
+  if _BACKEND == HEADLESS:
+    rl.InitWindow(64, 64, b"")
+    rl.BeginDrawing()
+    rl.ClearBackground((0, 0, 0, 255))
+    rl.EndDrawing()
+    rl.CloseWindow()
 
 
 def _load_cffi():
diff --git a/raylib/raylib/_backend.py b/raylib/raylib/_backend.py
index 5a16c11..145b5ac 100644
--- a/raylib/raylib/_backend.py
+++ b/raylib/raylib/_backend.py
@@ -22,7 +22,7 @@
 BACKEND_LINK_ARGS = {
   DESKTOP: ("-lGL", "-lX11"),
   COMMA: ("-lGLESv2", "-lEGL", "-lgbm", "-ldrm"),
-  HEADLESS: ("-lGLESv2", "-lEGL"),
+  HEADLESS: ("-lGLESv2", "-lEGL", "-Wl,-rpath,$ORIGIN/install/lib"),
 }
 
 COMMA_DEVICE_MARKERS = ("/AGNOS", "/TICI")
@@ -50,5 +50,6 @@ def detect_backend(environ=None, exists=os.path.exists):
 
   if any(exists(marker) for marker in COMMA_DEVICE_MARKERS):
     return COMMA
-
+  if HEADLESS in host_backends() and not environ.get("DISPLAY"):
+    return HEADLESS
   return DEFAULT_BACKEND
diff --git a/test_wheels_in_image.sh b/test_wheels_in_image.sh
index 995aaac..c89ccd7 100755
--- a/test_wheels_in_image.sh
+++ b/test_wheels_in_image.sh
@@ -34,7 +34,8 @@ docker run --rm -v "$PWD:/work" -w /work wheeltest bash -lc '
   pip install dist/*.whl
   for toml in */pyproject.toml; do
     module="$(basename "$(dirname "$toml")" | tr "-" "_")"
-    python -c "import $module; $module.smoketest()" && echo "$module: OK"
+    python -c "import $module; $module.smoketest()" || exit 1
+    echo "$module: OK"
   done
 '