Zero Hydra Failures filtering

I've been participating in the NixOS 25.05 Zero Hydra Failures event where people are encouraged to fix build failures in Nixpkgs. The website for the event is zh.fail (clever use of the fail tld!) and here's the current list of all failing packages and tests.

I looked around in the website but I didn't find any way to filter failures only for Linux or architecture (x86_64/aarch64). This feature was requested when the zh.fail website was first introduced, but I believe is currently missing. The source for the website is here, if I get the time I'm interested to see if it's easy to implement this feature.

In the meantime, I came up with a quick hack to filter only the entries I'm interested in. I'm using uBlock Origin to block ads and trackers in my browser and uBlock supports custom rules to hide parts of pages. So, I added this custom rule:

zh.fail##tr:not(:has(td:contains(x86_64-linux)))

which translates to: on the zh.fail domain hide table rows that don't contain x86_64-linux. You can specify -linux if you care for all architectures or you can specify -darwin if you want to show only Darwin builds.

It's a simple hack, but a big quality of life upgrade for me!