I highly recommend freesmlauncher, it’s a fork of prism launcher that doesn’t make you sign in.

You can then set up a Java server and in server.properties, set “online-mode” to false, that makes it so unverified accounts can join.

The only thing to note is that no skins will be present if you do this. There might be a mod that helps, but idk

My SO has a septum piercing, I personally don’t like how it looks, but that doesn’t mean I’m gonna make fun of or ridicule her because of it, it’s her body, so it’s her choice, and there is nothing that I should be able to do about it