You could use something like honk and post nothing but text yourself:
⌘ https://honk.tedunangst.com/u/tedu (you _can_ post images, so the top posts of that timeline is a poor example right now)
Source et cetera available from https://humungus.tedunangst.com/r/honk
GotoSocial would be another option (also in Go with SQLite backend.) Although you'll need a front-end because it doesn't ship with one.