"docker-compose run --rm web /mastodon/bin/tootctl media remove" has so far cleared 29G and counting from my disk.
Available space, here I come!
"Removed 294900 media attachments (approx. 105 GB)"
Interestingly, "df -h" says I have 128G free space now, where I had 0 before.
Private mastodon server run by Zatnosk