… while calling the 'throw' builtin
         at /private/var/lib/ofborg/checkout/repo/38dca4e3aa6bca43ea96d2fcc04e8229/builder/ofborg-core/pkgs/top-level/aliases.nix:1757:10:
         1756|   slimerjs = throw "slimerjs does not work with any version of Firefox newer than 59; upstream ended the project in 2021. <https://slimerjs.org/faq.html#end-of-development>"; # added 2025-01-06
         1757|   slrn = throw "'slrn' has been removed because it is unmaintained upstream and broken."; # Added 2025-06-11
             |          ^
         1758|   slurm-llnl = slurm; # renamed July 2017

       error: 'slrn' has been removed because it is unmaintained upstream and broken.