Author here. Glad to see the blogpost on HN!
CodeMirror improved Replit's performance by a lot and by extension our retention. In fact, after releasing it to mobile in July[1] our weekly retention rate on mobile increased by a whopping 70%. That said, solve a lot of mobile usability issues so it's not all due to performance. On desktop however, it's a different story, we made sure to just have parity with Monaco and it still improved retention by %25, almost all due to performance!
If you like working on performance come work at Replit, we want people that care about the performance of our systems!
Adopting CodeMirror pushed us to write more in a more functional style that makes the code more fun and simple (not easy) in the shortrun, and more maintainable in the long run! My teammates write CodeMirror extensions for kicks and giggles, sometimes they end up releasing some "bret victor shit"[3].
If you like CodeMirror and end up using it in production, try to get your company to fund the project[4] and open-source as much as you can!
[1]: https://blog.replit.com/codemirror-mobile
[2]: https://blog.replit.com/codemirror
[3]: https://blog.replit.com/kaboomdraw
[4]: https://marijnhaverbeke.nl/fund/
CodeMirror improved Replit's performance by a lot and by extension our retention. In fact, after releasing it to mobile in July[1] our weekly retention rate on mobile increased by a whopping 70%. That said, solve a lot of mobile usability issues so it's not all due to performance. On desktop however, it's a different story, we made sure to just have parity with Monaco and it still improved retention by %25, almost all due to performance!
If you like working on performance come work at Replit, we want people that care about the performance of our systems!
Adopting CodeMirror pushed us to write more in a more functional style that makes the code more fun and simple (not easy) in the shortrun, and more maintainable in the long run! My teammates write CodeMirror extensions for kicks and giggles, sometimes they end up releasing some "bret victor shit"[3].
If you like CodeMirror and end up using it in production, try to get your company to fund the project[4] and open-source as much as you can!
[1]: https://blog.replit.com/codemirror-mobile [2]: https://blog.replit.com/codemirror [3]: https://blog.replit.com/kaboomdraw [4]: https://marijnhaverbeke.nl/fund/