It works completely fine when trying in a separate single player world but I can't get it to work on a server. I've tried it as folders an as a .zip but it keeps saying minecraft can't read the pack mcmeta.

"Couldn't find pack meta for pack file/Nourish"
"Couldn't get pack info for: net.minecraft.class_3266: 'pack.mcmeta' in ResourcePack '.\world\datapacks\Nourish.zip'"

Sorry I'm not sure what you're trying to do. Nourish is primarily controlled by a config that needs to be client/server synced and I'm not sure what you're using a datapack for other than tags, and if that is what it's about then it's pretty clear by the log that you're missing the mcmeta file.

Sorry I'm dumb, not sure what I did wrong (maybe had Nourish instead of nourish in the datapack folder?) but I got it to work