add sccache

nixos/common/desktop/home.nix

@@ -35,7 +35,6 @@ in
     plexamp
     spotify
     qmk
-    rustup
     solo2-cli
     tex
     unzip
@@ -47,6 +46,7 @@ in
   programs = {
     v.vscode.enable = true;
     v.nvim.enable = true;
+    v.rust.enable = true;
 
     riff = {
       enable = true;

nixos/common/hm-modules/default.nix

@@ -1,3 +1,3 @@
 { ... }: {
-  imports = [ ./catppuccin.nix ./nvim.nix ./riff.nix ./vscode.nix ./git.nix ];
+  imports = [ ./catppuccin.nix ./nvim.nix ./riff.nix ./vscode.nix ./git.nix ./rust.nix ];
 }

nixos/common/hm-modules/rust.nix

@@ -0,0 +1,21 @@
+{ pkgs, lib, config, ... }:
+with lib;
+let cfg = config.programs.v.rust;
+in {
+  options.programs.v.rust = { enable = mkEnableOption "rust"; };
+  config = mkIf cfg.enable {
+    home.packages = with pkgs; [ rustup ];
+
+    home.file = {
+      ".cargo/config.toml".text = ''
+        [registries.crates-io]
+        protocol = "sparse"
+
+        [build]
+        rustc-wrapper = "${pkgs.sccache}/bin/sccache"
+      '';
+    };
+
+    home.sessionPath = [ "$HOME/.cargo/bin" ];
+  };
+}