desktop: fixes and move from ALVR to WiVRn

etcnixos/flake.lock

@@ -23,22 +23,6 @@
         "type": "github"
       }
     },
-    "alvr": {
-      "locked": {
-        "lastModified": 1727023213,
-        "narHash": "sha256-KPghRPcTbqCMktw9ahrtiq7a/seajAyLkEI2GS1x+sg=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "7c2572e5cf4329ad9fa50d33015aa7be394b4026",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "pull/308097/head",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
     "chaotic": {
       "inputs": {
         "flake-schemas": "flake-schemas",
@@ -303,11 +287,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1729381852,
-        "narHash": "sha256-Tl9738VMXlVjv7EVq3znrsodyUy0w1ekD0wsouzDybg=",
+        "lastModified": 1729403505,
+        "narHash": "sha256-1ILT9fxCbNQuToPWBhxC3N+hblIWW3WlEHnwcdoCBHE=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "75d8eea61e93c46fed1919f9ec798b7911378b22",
+        "rev": "88d3f02d308cb29a07942d24539f960721a20fe0",
         "type": "github"
       },
       "original": {
@@ -363,11 +347,11 @@
     "root": {
       "inputs": {
         "agenix": "agenix",
-        "alvr": "alvr",
         "chaotic": "chaotic",
         "lanzaboote": "lanzaboote",
         "nixos-hardware": "nixos-hardware",
-        "nixpkgs": "nixpkgs"
+        "nixpkgs": "nixpkgs",
+        "wivrn": "wivrn"
       }
     },
     "rust-overlay": {
@@ -405,6 +389,22 @@
         "repo": "default",
         "type": "github"
       }
+    },
+    "wivrn": {
+      "locked": {
+        "lastModified": 1729402130,
+        "narHash": "sha256-V9ZdbZ2iFVsN2AF/aJmSiRDp9rU5HYeQX+1NBYcKJzQ=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "a2922fae7ea92ee5c3ddb5999ee1997c699d87f8",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "pull/349910/head",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
     }
   },
   "root": "root",

etcnixos/flake.nix

@@ -12,7 +12,7 @@
 
     nixos-hardware.url = "github:NixOS/nixos-hardware/master";
 
-    alvr.url = "github:NixOS/nixpkgs/pull/308097/head";
+    wivrn.url = "github:NixOS/nixpkgs/pull/349910/head";
 
     chaotic = {
       url = "github:chaotic-cx/nyx/nyxpkgs-unstable";

etcnixos/system-nixos.nix

@@ -38,7 +38,7 @@
       "amdgpu.ppfeaturemask=0xFFF7FFFF"
     ];
 
-    initrd.availableKernelModules = [
+    kernelModules = [
       # kernel module for case fan control
       "nct6775"
     ];
@@ -53,7 +53,7 @@
 
   services.displayManager.autoLogin = {
     enable = true;
-    user = "yourusername";
+    user = "primary";
   };
 
   services.openssh = {
@@ -100,10 +100,29 @@
     lact
   ];
 
-  programs.alvr = {
+  services.wivrn = {
     enable = true;
-    package = inputs.alvr.legacyPackages.${pkgs.system}.alvr;
     openFirewall = true;
+    package = inputs.wivrn.legacyPackages.${pkgs.system}.wivrn;
+    defaultRuntime = true;
+    autoStart = true;
+    config = {
+      enable = true;
+      json = {
+        scale = 1.0;
+        bitrate = 100000000;
+        encoders = [
+          {
+            encoder = "vaapi";
+            codec = "h265";
+            width = 1.0;
+            height = 1.0;
+            offset_x = 0.0;
+            offset_y = 0.0;
+          }
+        ];
+      };
+    };
   };
 
   programs.steam = {
@@ -143,7 +162,6 @@
         gpu_path = "/sys/devices/pci0000:00/0000:00:03.1/0000:09:00.0/0000:0a:00.0/0000:0b:00.0/${select_hwmon}";
         mobo_path = "/sys/devices/platform/nct6775.656/${select_hwmon}";
         fan_speed = "${mobo_path}/pwm4";
-
       in
       ''
         INTERVAL=10

home-manager/flake.lock

@@ -205,11 +205,11 @@
         ]
       },
       "locked": {
-        "lastModified": 1729304879,
-        "narHash": "sha256-H7KGGJUU9BcDNnfXiATBGgs6FJKWQdfftNJS+/v2aMU=",
+        "lastModified": 1729391507,
+        "narHash": "sha256-as0I9xieJUHf7kiK2a9znDsVZQTFWhM1pLivII43Gi0=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "b259ef799b5ac014604da71ecd92d4a52603ed2d",
+        "rev": "784981a9feeba406de38c1c9a3decf966d853cca",
         "type": "github"
       },
       "original": {

home-manager/system-nixos.nix

@@ -2,6 +2,7 @@
   pkgs,
   inputs,
   lib,
+  config,
   ...
 }:
 {
@@ -25,4 +26,26 @@
       obs-pipewire-audio-capture
     ];
   };
+
+  # https://wiki.nixos.org/wiki/VR
+  xdg.configFile."openvr/openvrpaths.vrpath".text = ''
+    {
+      "config" :
+      [
+        "${config.xdg.dataHome}/Steam/config"
+      ],
+      "external_drivers" : null,
+      "jsonid" : "vrpathreg",
+      "log" :
+      [
+        "${config.xdg.dataHome}/Steam/logs"
+      ],
+      "runtime" :
+      [
+        "${pkgs.opencomposite}/lib/opencomposite"
+      ],
+      "version" : 1
+    }
+  '';
+
 }