Meet Bram, who has many Matrix projects and who got some fame in the community for his "tomato video". He writes some of his Matrix projects in the functional programming language Elm - for which he also writes an SDK.

Bram's homepage: https://realbram.com/

Bram's Github: https://github.com/BramvdnHeuvel

Elm Matrix SDK: https://package.elm-lang.org/packages/noordstar/elm-matrix-sdk-beta/latest/

Matrix Custom Event Type Directory: https://matrix.directory/

Game Quantum Checkers: https://github.com/BramvdnHeuvel/Quantum_Checkers

Matrix Chess: https://github.com/BramvdnHeuvel/Matrix-Chess

"600 tomatoes explain how to fight big tech (Q1 2021)": https://www.youtu.be/v5Y8zCwIxjI