Slightly unrelated: I used to shamelessly promote repl.it a couple years ago, but no longer do because their app has become so bloated and hard to use that it's discouraging to beginners -- recently I tried to remotely help a non-technical friend w/ an assignment and we must've spent ~20 minutes dealing with account creation, sending the correct invite link, and making sure we could both see our changes; it felt like a terrible waste of time especially as I kept reminding them "I promise it's worth it this app rocks!"
The app used to actually be awesome back when you could spin up an env in seconds, send the link to a friend, and immediately start collaborating.. Hopefully this will be the nail in the coffin, or at least lead to a mass migration from the platform.. :/