Slightly bizarre at first sight. When browsing the source at https://github.com/studio/studio, I find it hard to tell where things really happen. A curious mix of Smalltalk, Nix and R.
There’s a bit of a rabbit hole here, continue with the author’s blog-in-github-issues at https://github.com/lukego/blog.
Looks very cool, although I can’t find any licensing terms (the Hydra build fetches things from GitHub, so I assume it’s some sort of FOSS?)