diff --git a/librashader-cache/src/cache.rs b/librashader-cache/src/cache.rs
index 7ea11f2..72b7cff 100644
--- a/librashader-cache/src/cache.rs
+++ b/librashader-cache/src/cache.rs
@@ -46,7 +46,7 @@ pub(crate) mod internal {
     pub(crate) fn get_cache() -> Result<Persy, Box<dyn Error>> {
         let cache_dir = get_cache_dir()?;
         let conn = Persy::open_or_create_with(&cache_dir.join("librashader.db.1"), Config::new(), |persy| {
-            let mut tx = persy.begin()?;
+            let tx = persy.begin()?;
             tx.commit()?;
             Ok(())
         })?;
diff --git a/librashader-runtime-wgpu/Cargo.toml b/librashader-runtime-wgpu/Cargo.toml
index ddb43cd..82d4dc1 100644
--- a/librashader-runtime-wgpu/Cargo.toml
+++ b/librashader-runtime-wgpu/Cargo.toml
@@ -20,13 +20,20 @@ librashader-preprocess = { path = "../librashader-preprocess", version = "0.2.0-
 librashader-reflect = { path = "../librashader-reflect", version = "0.2.0-beta.11", features = ["wgsl"], default-features = false }
 librashader-runtime = { path = "../librashader-runtime" , version = "0.2.0-beta.11" }
 
-wgpu = { version = "0.19.0", features = ["spirv"] }
+wgpu = { version = "0.19.0", default-features = false, features = ["wgsl"] }
 rustc-hash = "1.1.0"
 image = "0.24.7"
 thiserror = "1.0.50"
 bytemuck = { version = "1.14.0", features = ["derive"] }
 array-concat = "0.5.2"
 
+
+[features]
+# workaround for docsrs to not build metal-rs.
+wgpu_dx12 = ["wgpu/dx12"]
+wgpu_metal = ["wgpu/metal"]
+wgpu_webgpu = ["wgpu/webgpu"]
+
 [target.'cfg(not(target_arch="wasm32"))'.dependencies]
 rayon = "1.8.1"
 
@@ -37,4 +44,3 @@ raw-window-handle = "0.6.0"
 winit = "0.29.10"
 pollster = "0.3"
 log = "0.4.20"
-
diff --git a/librashader/Cargo.toml b/librashader/Cargo.toml
index 4610ce8..eacf8b6 100644
--- a/librashader/Cargo.toml
+++ b/librashader/Cargo.toml
@@ -28,7 +28,7 @@ librashader-runtime-mtl = { path = "../librashader-runtime-mtl", version = "0.2.
 librashader-cache = { path = "../librashader-cache", version = "0.2.0-beta.11" }
 
 ash = { version = "0.37", optional = true }
-wgpu = { version = "0.19", optional = true }
+wgpu = { version = "0.19", default-features = false, optional = true }
 wgpu-types = { version = "0.19", optional = true }
 
 [target.'cfg(windows)'.dependencies.windows]