As a part of exploring WMDE tools that are currently broken in T356618, I found that there's a reference to one of them in the Mismatch Finder Layout and Query Builder Footer. The broken link is the following:

https://wikidata-analytics.wmcloud.org/app/CuriousFacts

The problematic lines are:

• Line in Query Builder Code
• Line in Mismatch Finder Code (fixed)

I made the following PRs for this:

• https://github.com/wmde/wikidata-mismatch-finder/pull/876
• https://github.com/wikimedia/wikidata-query-builder/pull/958

Note that the second was auto closed as Query Builder is maintained on Gerrit. I would suggest that we maybe change the description of this repo to make this clear like the other ones that are on Gerrit and mirrored over.