I’ve made an app that makes it possible to schedule a post in Lemmy at an arbitrary time. It’s available at https://schedule.lemmings.world/ and can be used by people from any instance.
Let me know what you think!
P.S. This post was made using the app!
Edit: And it’s open source!
I mean, if you use an app, or alternative Lemmy UI, you give it the same access. The minute Lemmy supports OAuth, I’m switching to it. Until then there’s no other way.
It’s open source if it’s any help.