@thomasfuchs https://github.com/features/codespaces
Atom was at least Electron (same as VSCode), but I believe codespaces uses the VSCode browser editor, so they didn't really "make it", so much as they use it for their own product
@konnorrogers @thomasfuchs VSCode is a fork of Atom, afaik Electron and Atom were created together, to provide a one-stop-shop for code within the Github ecosystem, which the integration of VSCode and Azure Codespaces completes. Gitlab now does the same thing, their in-browser editor is based on VSCode, which is now one of the more popular code editors on the planet.