vr: organize

etcnixos/vr.nix

@@ -7,15 +7,19 @@
     # Use my fork for WiVRn 0.20
     package = inputs.wivrn.legacyPackages.${pkgs.system}.wivrn;
 
+    # Write information to /etc/xdg/openxr/1/active_runtime.json, VR applications
+    # will automatically read this and work with wivrn
+    defaultRuntime = true;
+
     # Executing it through the systemd service executes WiVRn w/ CAP_SYS_NICE
     # Resulting in no stutters!
-    defaultRuntime = true;
     autoStart = true;
 
     # Config for WiVRn
     config = {
       enable = true;
       json = {
+        # 1.0x display scaling
         scale = 1.0;
         # 100 Mb/s
         bitrate = 100000000;
@@ -23,6 +27,7 @@
           {
             encoder = "vaapi";
             codec = "h265";
+            # 1.0 x 1.0 scaling
             width = 1.0;
             height = 1.0;
             offset_x = 0.0;