ccache conf

machines/universedesktop/ccache.nix

@@ -0,0 +1,30 @@
+{ config, pkgs, lib, ... }: {
+nixpkgs.overlays = [
+  (self: super: {
+    ccacheWrapper = super.ccacheWrapper.override {
+      extraConfig = ''
+        export CCACHE_COMPRESS=1
+        export CCACHE_DIR="${config.programs.ccache.cacheDir}"
+        export CCACHE_UMASK=007
+        if [ ! -d "$CCACHE_DIR" ]; then
+          echo "====="
+          echo "Directory '$CCACHE_DIR' does not exist"
+          echo "Please create it with:"
+          echo "  sudo mkdir -m0770 '$CCACHE_DIR'"
+          echo "  sudo chown root:nixbld '$CCACHE_DIR'"
+          echo "====="
+          exit 1
+        fi
+        if [ ! -w "$CCACHE_DIR" ]; then
+          echo "====="
+          echo "Directory '$CCACHE_DIR' is not accessible for user $(whoami)"
+          echo "Please verify its access permissions"
+          echo "====="
+          exit 1
+        fi
+      '';
+    };
+  })
+];
+nix.settings.extra-sandbox-paths = [ config.programs.ccache.cacheDir ];
+}

machines/universedesktop/configuration.nix

@@ -24,6 +24,9 @@
         ./programs/video.nix
         ./programs/remote.nix
         ./printing.nix
+
+        # ccache, y'know for blenders and whatnots
+        ./ccache.nix
       ];
 
     fileSystems."/home/universe/tmp" = {