Freecad & Blender ccache

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

@@ -5,6 +5,10 @@
 { lib, config, pkgs, nixpkgs, ... }: {
     nix.settings.auto-optimise-store = true;
     nix.registry.nixpkgs.flake = nixpkgs;
+
+    # Allow user-mode qemu for running riscv64 binaries
+    # boot.binfmt.emulatedSystems = [ "riscv64-linux" ];
+
     imports =
       [ # Include the results of the hardware scan.
         ./hardware-configuration.nix
@@ -20,6 +24,9 @@
         ./programs/video.nix
         ./programs/remote.nix
         ./printing.nix
+
+        # ccache, y'know for blenders and whatnots
+        ./ccache.nix
       ];
 
     fileSystems."/home/universe/tmp" = {

machines/universedesktop/programs/art.nix

@@ -79,6 +79,7 @@ in {
   nixpkgs.overlays = [(self: super: rec {
     # Add CUDA Support to Blender
     blender_cuda = super.blender.override {
+      stdenv = super.ccacheStdenv;
       cudaSupport = true;
     };
     # Add Opencamlib for BlenderCAM Support

machines/universedesktop/programs/cad.nix

@@ -51,6 +51,7 @@ in {
   # if you also want support for flakes 
   nixpkgs.overlays = [(self: super: rec {
     freecad = super.freecad.override {
+      stdenv = super.ccacheStdenv;
       python = py3Cad;
     };
   })];