It's on GCP and 99% "serverless" with TypeScript + React frontend. Flutter for mobile apps and Electron for desktop apps (planning to switch the desktop apps to Flutter too once their desktop frameworks are more stable)
Noted on the "local-first" term, thanks!
I thought about doing CRDT in the beginning, but because not every block type is text, I simplified the implementation to last write wins. Note that every paragraph is a block, so it's not like the entire page is overwritten. CRDT is still doable though.
There are real-time text cursors and block selections, but I intentionally did not implement Figma-style floating cursors that people may expect in certain modules. I thought it looks cool but doesn't offer much value, especially when you can already see what other people selected.
Interesting you say that because I've always felt like a big drawback of Google Docs is the inability to see the floating cursor. It doesn't feel as immersive as, say, Figma editing. However, I'm just one person and my opinion doesn't speak for them all! It'd be interesting to see an A/B test with this sort of functionality.
Noted on the "local-first" term, thanks!
I thought about doing CRDT in the beginning, but because not every block type is text, I simplified the implementation to last write wins. Note that every paragraph is a block, so it's not like the entire page is overwritten. CRDT is still doable though.
There are real-time text cursors and block selections, but I intentionally did not implement Figma-style floating cursors that people may expect in certain modules. I thought it looks cool but doesn't offer much value, especially when you can already see what other people selected.