Please update your addon for at least Neoforged
21.1 (1.21.1) at is is stable.

https://www.curseforge.com/minecraft/mc-mods/alchemistry/files/4770614

I mean the last update I am seeing is alchemistry-1.20.1-2.3.4.jar
That was done September 26 2023 today is November 10 2024
so it bas been over a year since it has been updated.

Is this mod even still being developed? Please update the mod to a
more recent stable version like 1.21.1 as it is stable.

dead repo

dead repo

That's kind of a stupid thing to say isn't it? Mod developers tend to work for free. I don't have a lot of free time and haven't for a few months. Real life stuff takes priority to updating a mod. It's not dead. It's on a break.