Pin {firefox,thunderbird}-unwrapped to exact nixpkgs hashes

Author: booxter

flake.lock

@@ -61,6 +61,16 @@
       url = "github:jonas/tig";
       flake = false;
     };
+
+    # Pin Darwin Mozilla unwrapped builds while Hydra can time out long-running jobs
+    # when no output is produced (missing "silence timer" support). When that
+    # happens, build jobs fail and the artifacts are not cached.
+    # Building these packages locally/CI is too expensive, so we must stay on
+    # the previous cached versions until cache catches up.
+    # https://github.com/NixOS/infra/pull/950
+    # TODO: remove these inputs when the Hydra issue is fixed.
+    nixpkgs-firefox-unwrapped.url = "github:NixOS/nixpkgs/e3cb16bccd9facebae3ba29c6a76a4cc1b73462a";
+    nixpkgs-thunderbird-unwrapped.url = "github:NixOS/nixpkgs/e3cb16bccd9facebae3ba29c6a76a4cc1b73462a";
   };
 
   outputs =

flake.nix

@@ -3,7 +3,7 @@
   additions = final: _prev: import ../pkgs final.pkgs;
 
   modifications =
-    _final: prev:
+    final: prev:
     let
       getPkgs =
         np:
@@ -18,6 +18,8 @@
       pkgsLldb = getPkgs inputs.debugserver;
       pkgsRelease = getPkgs inputs.nixpkgs-25_11;
       pkgsQuartzWm = getPkgs inputs.nixpkgs-quartz-wm;
+      pkgsFirefoxUnwrapped = getPkgs inputs.nixpkgs-firefox-unwrapped;
+      pkgsThunderbirdUnwrapped = getPkgs inputs.nixpkgs-thunderbird-unwrapped;
       llmAgentsPkgs = inputs.llm-agents.packages.${prev.system};
       releaseTransmission =
         if prev.lib.strings.hasPrefix "4.0." pkgsRelease.transmission_4.version then
@@ -78,8 +80,12 @@
       });
     }
     // inputs.nixpkgs.lib.optionalAttrs prev.stdenv.isDarwin {
+      "firefox-unwrapped" = pkgsFirefoxUnwrapped."firefox-unwrapped";
+      "thunderbird-unwrapped" = pkgsThunderbirdUnwrapped."thunderbird-unwrapped";
+
       # Backport until https://github.com/NixOS/nixpkgs/pull/488112 lands in our pinned nixpkgs.
-      firefox = patchFirefoxDarwinWrapper prev.firefox;
+      firefox = patchFirefoxDarwinWrapper (prev.wrapFirefox final."firefox-unwrapped" { });
+      thunderbird = prev.wrapThunderbird final."thunderbird-unwrapped" { };
 
       # Pull XQuartz stack from a fork until quartz-wm changes are merged:
       # https://github.com/NixOS/nixpkgs/pull/491935