The reports at https://en.wikipedia.org/wiki/Wikipedia:Database_reports come from different places. This is kind of cruel to anyone wanting to work on the reports, as some are controlled by https://github.com/wikimedia/database-reports under a database-reports account and others are controlled by https://github.com/mzmcbride/database-reports under a dbreps account.
At minimum, this situation should probably be better documented. It's also pretty tricky that we're linking to pages such as https://en.wikipedia.org/wiki/Wikipedia:Database_reports/Page_count_by_namespace/Configuration, which neither Git repository is using.
Also, T219324#5235038 mentions a Ruby bot?