If you miss casual little trades with every other NPC in DoS2, this mod is for you. You will have an alternative, fair way to acquire some unique loot without stealing/killing NPC, plus you can easily check if NPC has memorabilias connecting them with other NPC, notes, books etc. Also donating items to NPC will increase their attitude.
Mod enables trade button for any NPC you able to talk to. That means some unusual categories like companions (with no practical benefits tho), summons and animals (shapeshifter cow will eagerly sell you its ring). Basically anything you can pickpocket you can buy out as well now.
Instructions
Manually drop pak file from archive to Mods folder (Appdata\Local\Larian Studios\Baldur's Gate 3\Mods) and enable it in in-game mod manager. Or use BG3MM/in-game mod manager.
Trade With Anyone
Allows to trade with any NPC you are able to talk to.