flake: use nixpkgs master for unstable

flake.nix

@@ -1,7 +1,7 @@
 {
   inputs = {
     nixpkgs.url = "github:NixOS/nixpkgs/release-23.11";
-    nixos-unstable.url = "github:NixOS/nixpkgs/nixos-unstable";
+    nixos-unstable.url = "github:NixOS/nixpkgs/master";
     local-unstable.url = "path:///home/giulio/dev/nixpkgs";
     home-manager = {
       url = "github:nix-community/home-manager/release-23.11";
@@ -15,34 +15,31 @@
       sysDarwin = "aarch64-darwin";
       sysLinuxAarch = "aarch64-linux";
 
-      wrapPkgsSystem = { system }:
-        import nixpkgs rec {
-          inherit system;
-
-          unstablePkgs = wrapUnstablePkgsSystem { inherit system; };
-          localPkgs = import local-unstable {
-            inherit system;
-            config.allowUnfree = true;
-          };
+      wrapPkgsSystem = { system, cudaSupport ? false }:
+        let
           config = {
+            inherit cudaSupport;
             allowUnfree = true;
           };
+        in
+        import nixpkgs rec {
+          inherit system config;
+
+          unstablePkgs = import nixos-unstable {
+            inherit system config;
+          };
+
+          localPkgs = import local-unstable {
+            inherit system config;
+          };
+
           overlays = [
             (final: prev: { inherit unstablePkgs; })
             (final: prev: { inherit localPkgs; })
           ];
         };
 
-      wrapUnstablePkgsSystem = { system }:
-        import nixos-unstable {
-          inherit system;
-
-          config = {
-            allowUnfree = true;
-          };
-        };
-
-      wrapUtils = { pkgs, unstablePkgs, system }:
+      wrapUtils = { pkgs, system }:
         let
           inherit (pkgs.lib) makeScope;
           inherit (pkgs) newScope;
@@ -57,35 +54,24 @@
         });
 
 
-      pkgsLinuxX64 = wrapPkgsSystem { system = sysLinuxX64; };
-      unstableLinuxX64 = wrapUnstablePkgsSystem { system = sysLinuxX64; };
-      utilsLinuxX64 = wrapUtils { system = sysLinuxX64; pkgs = pkgsLinuxX64; unstablePkgs = unstableLinuxX64; };
+      pkgsLinuxX64Cuda = wrapPkgsSystem { system = sysLinuxX64; cudaSupport = true; };
+      utilsLinuxX64Cuda = wrapUtils { system = sysLinuxX64; pkgs = pkgsLinuxX64Cuda; };
 
       pkgsLinuxAarch = wrapPkgsSystem { system = sysLinuxAarch; };
-      unstableLinuxAarch = wrapUnstablePkgsSystem { system = sysLinuxAarch; };
-      utilsLinuxAarch = wrapUtils { system = sysLinuxAarch; pkgs = pkgsLinuxAarch; unstablePkgs = unstableLinuxAarch; };
+      utilsLinuxAarch = wrapUtils { system = sysLinuxAarch; pkgs = pkgsLinuxAarch; };
 
       pkgsDarwin = wrapPkgsSystem { system = sysDarwin; };
-      unstableDarwin = wrapUnstablePkgsSystem { system = sysDarwin; };
-      utilsDarwin = wrapUtils { system = sysDarwin; pkgs = pkgsDarwin; unstablePkgs = unstableDarwin; };
+      utilsDarwin = wrapUtils { system = sysDarwin; pkgs = pkgsDarwin; };
     in
     {
       nixosConfigurations = {
-        architect = utilsLinuxX64.host.mkHost {
+        architect = utilsLinuxX64Cuda.host.mkHost {
           name = "architect";
           users = [{
             user = "giulio";
             roles = [ ];
           }];
         };
-        gAluminum = utilsLinuxX64.host.mkHost {
-          name = "gAluminum";
-          users = [{
-            user = "giulio";
-            roles = [ "desktop" "ssh" "git" ];
-          }];
-          roles = [ "gnome" ];
-        };
       };
 
       homeConfigurations = {
@@ -97,11 +83,11 @@
           name = "giulio";
           roles = [ "ssh" ];
         };
-        giulioX64 = utilsLinuxX64.user.mkHMUser {
+        giulioX64 = utilsLinuxX64Cuda.user.mkHMUser {
           name = "giulio";
           roles = [ "ssh" "go" ];
         };
-        giulioX64NoSSH = utilsLinuxX64.user.mkHMUser {
+        giulioX64NoSSH = utilsLinuxX64Cuda.user.mkHMUser {
           name = "giulio";
           roles = [ "go" ];
         };

hosts/architect/sunshine.nix

@@ -1,6 +1,16 @@
-{ pkgs, ... }:
+{ config, pkgs, ... }:
 
 let
+  # nvidia-patch
+  rev = "b63013c"; # revision from https://github.com/keylase/nvidia-patch to use
+  hash = "sha256-EDPoMTj3J1f/7Sv/q7P/lZ4r2aXOCdsbZ4FumbvuCWk="; # sha256sum for https://github.com/keylase/nvidia-patch at the specified revision
+
+  # create patch functions for the specified revision
+  nvidia-patch = pkgs.nvidia-patch rev hash;
+
+  # nvidia package to patch
+  nvidiaPackage = config.boot.kernelPackages.nvidiaPackages.stable;
+
   user = "sunshine";
   resolutionScript = pkgs.writeTextFile {
     name = "sunshine-resolution-script";
@@ -23,6 +33,8 @@ let
 
       # Apply new xrandr mode
       xrandr --output DP-0 --primary --mode ''${mode_alias} --pos 0x0 --rotate normal
+
+      /run/current-system/sw/bin/nvidia-settings -a 'SyncToVBlank=0'
     '';
     executable = true;
     destination = "/bin/resolution.sh";
@@ -35,7 +47,7 @@ let
       min_threads=12
       global_prep_cmd=[{"do":"${pkgs.bash}/bin/bash -c \"${resolutionScript}/bin/resolution.sh ''${SUNSHINE_CLIENT_WIDTH} ''${SUNSHINE_CLIENT_HEIGHT} ''${SUNSHINE_CLIENT_FPS}\""}]
     '';
-  sunshineOverride = pkgs.sunshine.override { cudaSupport = true; stdenv = pkgs.cudaPackages.backendStdenv; };
+  sunshineOverride = pkgs.unstablePkgs.sunshine.override { cudaSupport = true; };
 in
 {
   security = {
@@ -52,18 +64,13 @@ in
     '';
   };
 
-  systemd.targets = {
-    sleep.enable = false;
-    suspend.enable = false;
-    hibernate.enable = false;
-    hybrid-sleep.enable = false;
-  };
 
   environment.systemPackages = with pkgs; [
     sunshineOverride
     xorg.xrandr
     xorg.xorgserver
     xorg.libxcvt
+    gamemode
   ];
   sound.enable = true;
 
@@ -130,20 +137,28 @@ in
     openssh.authorizedKeys.keys = [ "ssh-rsa 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 giulio@giulio-X230" ];
   };
 
+  systemd = {
+    targets = {
+      sleep.enable = false;
+      suspend.enable = false;
+      hibernate.enable = false;
+      hybrid-sleep.enable = false;
+    };
 
-  systemd.user.services.${user} = {
-    description = "Sunshine server";
-    wantedBy = [ "graphical-session.target" ];
-    startLimitIntervalSec = 500;
-    startLimitBurst = 5;
-    partOf = [ "graphical-session.target" ];
-    wants = [ "graphical-session.target" ];
-    after = [ "graphical-session.target" ];
-    path = [ resolutionScript pkgs.xorg.xrandr pkgs.bash pkgs.xorg.libxcvt pkgs.xorg.xorgserver pkgs.gawk ];
-    serviceConfig = {
-      ExecStart = "${sunshineOverride}/bin/sunshine ${configFile}";
-      Restart = "on-failure";
-      RestartSec = "5s";
+    user.services.${user} = {
+      description = "Sunshine server";
+      wantedBy = [ "graphical-session.target" ];
+      startLimitIntervalSec = 500;
+      startLimitBurst = 5;
+      partOf = [ "graphical-session.target" ];
+      wants = [ "graphical-session.target" ];
+      after = [ "graphical-session.target" ];
+      path = with pkgs; [ resolutionScript xorg.xrandr bash xorg.libxcvt xorg.xorgserver gawk gamemode ];
+      serviceConfig = {
+        ExecStart = "${sunshineOverride}/bin/sunshine ${configFile}";
+        Restart = "on-failure";
+        RestartSec = "5s";
+      };
     };
   };
 
@@ -166,6 +181,7 @@ in
       powerManagement.finegrained = false;
       open = false;
       nvidiaSettings = true;
+      package = nvidia-patch.patch-nvenc (nvidia-patch.patch-fbc nvidiaPackage);
     };
   };
 

lib/host.nix

@@ -1,9 +1,7 @@
 { pkgs
 , nixpkgs
-, unstablePkgs
 , home-manager
 , system
-, mkHomeRole
 , mkSysRole
 , mkUser
 , ...
@@ -36,7 +34,6 @@
           ];
 
           home-manager = {
-            extraSpecialArgs.unstablePkgs = unstablePkgs;
             useGlobalPkgs = true;
           };
 

lib/user.nix

@@ -1,4 +1,9 @@
-{ pkgs, stdenv, home-manager, mkHomeRole, ... }:
+{ pkgs
+, stdenv
+, home-manager
+, mkHomeRole
+, ...
+}:
 
 {
   mkUser = { name, roles ? [ ] }: