Piko Starsider :verified_paw:It seems that since mastodon 4.3 (released on Oct 2024) it's much easier to change the max post length. All you need to do is to edit one number in one file, then restart. No need to rebuild assets or anything like that. I didn't know because I haven't updated for 2 years.
The file is app/validators/status_length_validator.rb
All GNU social JP content and data are available under the