add latest thunderbird

flake.lock

@@ -106,6 +106,22 @@
         "type": "github"
       }
     },
+    "nixpkgs-master": {
+      "locked": {
+        "lastModified": 1656856966,
+        "narHash": "sha256-pD09eSy4eWAVvAawBFyQRmPjdmyJzDO8J/zLpikxgEw=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "73fbb75a9061d4cee01390b40f16eda2bbae1462",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "master",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "nixpkgs-nixos-unstable": {
       "locked": {
         "lastModified": 1656753965,
@@ -160,6 +176,7 @@
         "flake-utils": "flake-utils",
         "home-manager": "home-manager",
         "nixos-hardware": "nixos-hardware",
+        "nixpkgs-master": "nixpkgs-master",
         "nixpkgs-nixos-unstable": "nixpkgs-nixos-unstable",
         "nixpkgs-stable": "nixpkgs-stable",
         "nur": "nur",

flake.nix

@@ -1,7 +1,8 @@
 {
   description = "NixOS configuration with flakes";
   outputs = { self, flake-utils, home-manager, nixpkgs-nixos-unstable
-    , nixpkgs-stable, darwin, nixos-hardware, nur, sops, }@inputs:
+    , nixpkgs-master, nixpkgs-stable, darwin, nixos-hardware, nur, sops,
+    }@inputs:
 
     let
       mkServer = pkgs: system: hostname:
@@ -154,6 +155,13 @@
       };
     };
   inputs = {
+    nixpkgs-master = {
+      type = "github";
+      owner = "NixOS";
+      repo = "nixpkgs";
+      ref = "master";
+    };
+
     nixpkgs-nixos-unstable = {
       type = "github";
       owner = "NixOS";

nixos/distributed-builds.nix

@@ -11,7 +11,7 @@
       systems = [ "x86_64-linux" "aarch64-linux" ];
       maxJobs = 2;
       speedFactor = 1;
-      supportedFeatures = [ "kvm" ];
+      supportedFeatures = [ "kvm" "big-parallel" ];
       mandatoryFeatures = [ ];
     }
     {

nixos/gui/default.nix

@@ -1,5 +1,7 @@
 { config, pkgs, discord, inputs, nixpkgs-nixos-unstable-and-unfree, ... }:
-let unstable = inputs.nixpkgs-nixos-unstable.legacyPackages.${pkgs.system};
+let
+  unstable = inputs.nixpkgs-nixos-unstable.legacyPackages.${pkgs.system};
+  nixpkgs-master = inputs.nixpkgs-master.legacyPackages.${pkgs.system};
 in {
   programs.firejail.enable = true;
   programs.firejail.wrappedBinaries = {
@@ -77,7 +79,7 @@ in {
         yubikey-manager-qt
         yubikey-personalization
         yubikey-personalization-gui
-      ] ++ [ unstable.gnucash ] ++ [
+      ] ++ [ unstable.gnucash nixpkgs-master.thunderbird ] ++ [
         nixpkgs-nixos-unstable-and-unfree.discord
         nixpkgs-nixos-unstable-and-unfree.hopper
         nixpkgs-nixos-unstable-and-unfree.slack