This is based on DragonsPlus Origins: Classes (Forge) port and changed.

Will only updated for personal use and all other disclaimers are same as theirs.

Nitwit: you're not particularly good at anything.

Rogue: your name is never visible through walls; you enter stealth (making less sounds and dealing double damage from behind) after sneaking for 10 seconds add night vision

Beastmaster: animals you tame gain permanent extra hearts and damage; when you drink a potion the effects also apply to nearby tamed animals when you breed animals, they sometimes have a chance to produce twins; animals killed by you have a chance of dropping twice as much loot

Blacksmith: tools and armor crafted by you provide small benefits; you can repair tools and armor more efficiently, both in an anvil and via crafting you break all stone blocks faster; you don't exhaust from mining blocks

Farmer: bone meal is twice as effective when used by you; crops sometimes yield twice the loot when you harvest them food you craft provides more nourishment; you gain extra XP from cooking food in a smoker Merchant: when you trade with villagers, their trades aren't used up; wandering traders give you special offers you can strengthen or extend the effects of potions; you are better at enchanting

Warrior: you deal +1 attack damage with every weapon; you are slowed less when using a shield your projectiles are more accurate; you are slowed less when using a bow

Disclaimer
1. This is NOT an official port.
2. DON'T ask for backport, this mod depends on EdwinMindcraft's Origins (Forge), and most features need some specific versions of that mod to work properly.
3. Most of the code were rewritten to fit forge environment and extend customizabilities, so keep in mind that some features may be slightly different from the fabric version.

4. This mod is licensed under MIT License, you may basically do whatever you like to the mod, so don't ask me for any additional permission on using the mod as it's unnecessary.

Origins Classes condensed