Vector is written mainly by the Vector team, building upon the Matrix React SDK. Vector also welcomes external contributions. Third party contributors include: * Nolan Darilek (https://github.com/ndarilek) Accessibility and semantic markup contributions * https://github.com/neko259 Improved scrollbar CSS * Florent VIOLLEAU (https://github.com/floviolleau) Improve README.md for a better understanding of installation instructions