This datapack brings back the old pre-1.14 villager trades and mechanics!
No more spamming lecterns for that mending trade, villagers spawn with their profession and don't need to restock at workshops!
Villagers lose their profession when zombified, and when cured will be given a random profession.
Requires 1.20.5+

(Farmers still need a job site for them to farm crops)
(I implemented support for add-ons that want to add more professions, although it hasn't been tested yet)

I recommend using this datapack by MineOym for the old villages