… while calling the 'throw' builtin
         at /var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/builder/ofborg-core/pkgs/top-level/aliases.nix:649:18:
          648|   fira-code-nerdfont = lib.warnOnInstantiate "fira-code-nerdfont is redundant. Use nerd-fonts.fira-code instead." nerd-fonts.fira-code; # Added 2024-11-10
          649|   firebird_2_5 = throw "'firebird_2_5' has been removed as it has reached end-of-life and does not build."; # Added 2025-06-10
             |                  ^
          650|   firefox-esr-115 = throw "The Firefox 115 ESR series has reached its end of life. Upgrade to `firefox-esr` or `firefox-esr-128` instead.";

       error: 'firebird_2_5' has been removed as it has reached end-of-life and does not build.