Seems like an interesting effort. A developer is building an alternative Java-based backend to Lemmy’s Rust-based one, with the goal of building in a handful of different features. The dev is looking at using this compatibility to migrate their instance over to the new platform, while allowing the community to use their apps of choice.
kill it with fire
Next step, is to remake Lemmy in JavaScript. Pure JavaScript, no typescript, only express, nothing else
Going from a modern well-designed language to an old-and-busted, kitschy, memory-hogging, bloated language. This is literally a step backwards.
Rust, Go… hell, even Ruby-on-Rails or whatever Python is offering nowadays would be a better choice.