How would someone with a terrible singing voice go about learning to sing?

https://lemmy.world/post/2246500

How would someone with a terrible singing voice go about learning to sing? - Lemmy.world

And is it even possible to develop an appreciable singing voice?

Singing with someone makes you learn how to adjust your voice to the tune on amateur level. Try camping or any other context you can sing with somebody. Also listen to different kinds of vocal and try to imitate them.