The thing that takes all the space here mostly is /var/lib/l10nupdate/caches is 53G.

This seems familiar, like we had the same issue before, and the question is if we need to keep all these versions around:

cache-1.25wmf1   cache-1.25wmf15  cache-1.25wmf20  cache-1.25wmf4  cache-1.26wmf1   cache-1.26wmf15  cache-1.26wmf20  cache-1.26wmf6
cache-1.25wmf10  cache-1.25wmf16  cache-1.25wmf21  cache-1.25wmf5  cache-1.26wmf10  cache-1.26wmf16  cache-1.26wmf21  cache-1.26wmf7
cache-1.25wmf11  cache-1.25wmf17  cache-1.25wmf22  cache-1.25wmf6  cache-1.26wmf11  cache-1.26wmf17  cache-1.26wmf22  cache-1.26wmf8
cache-1.25wmf12  cache-1.25wmf18  cache-1.25wmf23  cache-1.25wmf7  cache-1.26wmf12  cache-1.26wmf18  cache-1.26wmf3   cache-1.26wmf9
cache-1.25wmf13  cache-1.25wmf19  cache-1.25wmf24  cache-1.25wmf8  cache-1.26wmf13  cache-1.26wmf19  cache-1.26wmf4
cache-1.25wmf14  cache-1.25wmf2   cache-1.25wmf3   cache-1.25wmf9  cache-1.26wmf14  cache-1.26wmf2   cache-1.26wmf5

@Krenair is also using tin to upload files (~92G) - T111941: Please upload large files to Wikimedia Commons because terbium doesn't have enough space.

I deleted the 46GB original archive, other files will go soon.

Original report of <6% disk space alert is gone. I am retiring operations from the projects (sadly, we do not have a "Done" column), and let tin's users full control of it (close the ticket, delete more files, request more resources, etc.).

Filled in a few other tasks:

T112509: Trebuchet should repack / pack-refs git repos under /srv/deployment
T112508: scap / deployment of branches should get rid of old caches on tin /var/lib/l10nupdate/caches

What about those /tmp/mw-cache-* files?

Deleted the remaining upload files (since that's resolved now) - 106G (42%) free