Most of today was just getting wooz.dev migrated to hetz2 and setting it up.
Somehow I ended up with multiple AAAA (and A, not shown) records in DigitalOcean's DNS manager; deleted the old ones that pointed at cloud5.
Got wiki displaying properly at 21:52. Only minor tweaks needed after that (...except for the upload problem... which turned out to be a location mismatch, not permissions).