mreow

config/modules/wivrn.nix

@@ -1,18 +1,33 @@
 { den, modules, ... }:
 {
   modules.wivrn = {
-    homeManager =
-      { pkgs, ... }:
-      {
-        home.packages = with pkgs; [
-          wivrn
-          wayvr
-        ];
-      };
+      homeManager =
+        { pkgs, ... }:
+        {
+          # nixpkgs builds wivrn with NVENC off (WIVRN_USE_NVENC follows cudaSupport);
+          # without it "nvenc" in config.json fails with "Failed to find a suitable video encoder"
+            nixpkgs.overlays = [
+              (final: prev: {
+                wivrn = prev.wivrn.override { cudaSupport = true; };
+              })
+            ];
+          home.packages = with pkgs; [
+            wivrn
+            wayvr
+          ];
+        };
 
     nixos =
       { pkgs, lib, ... }:
       {
+        # nixpkgs only enables the NVENC encoder (WIVRN_USE_NVENC) when cudaSupport is set;
+        # without it "nvenc" in config.json fails with "Failed to find a suitable video encoder"
+        nixpkgs.overlays = [
+          (final: prev: {
+        wivrn = prev.wivrn.override { cudaSupport = true; };
+          })
+        ];
+
         services.wivrn = {
           enable = true;
           openFirewall = true;