Makes a lot of sense! It really is true that ML models kind of live in its own little world with their training loop and should interact with the rest through a rest api. And now and then new data gets added for training, as well as the api should change a bit, maybe we tweak the labels. You managed to encapsulate that part. I might port one of our text model to it to try it out :)
The core code editor itself uses Monaco (the same thing under the hood of VSCode), but everything else is custom (i.e. file browser, language server, syntax highlighting, tabs, etc.)
