fixes

m/rust.nix

@@ -0,0 +1,27 @@
+{ pkgs, config, inputs, lib, ... }:
+let
+  rust = config.maid.rust;
+in
+{
+  options.maid.rust = {
+    enable = lib.mkEnableOption "rust toolchain";
+  };
+
+  config = lib.mkIf rust.enable {
+    nixpkgs.overlays = [ inputs.fenix.overlays.default ];
+    
+    environment.systemPackages = with pkgs; [
+      (fenix.complete.withComponents [
+        "rustc"
+        "cargo"
+        "rustfmt"
+        "rust-src"
+        "rust-analyzer"
+        "clippy"
+        "miri"
+      ])
+      sccache
+      cargo-edit
+    ];
+  };
+}