Not the title (R3F it seems?)
- R3F (react-three-fiber) - wrapper for React to interact with three.js, a 3D library for JS
- drei - useful helpers for react-three-fiber
- rapier - physics library for react-three-fiber
All three packages are made by Poimandres (founded by Paul Henschel, quite prolific in creating these packages), an open source collective, who also makes zustand, if you're familiar with that.