rustpad VS ot.js

Take a look at https://github.com/ekzhang/rustpad

I'm looking for software similar to https://rustpad.io but with login and password. Docker would be nice :)

You could try rustpad

Looks pretty similar to https://rustpad.io/

Awesome! I requested this in rustpad but it was closed with wontfix. I suppose it is out of scope of rustpad but I'm really glad to see that there's this project to add it.

Just adding an example to the other side, I wrote https://rustpad.io/ in Rust, which is a collaborative text editor that uses WebSockets and resolves edit conflicts in real time using an operational transformation algorithm. It's a fairly complex bit of logic. But I actually thought Rust was the best language for this application because of performance, data race-safety, Serde, and the borrow checker. (My second choice would have been Go with stress tests run under `the -race flag.)

This single file shows the entire set of OT transformations (retain, insert, delete):

https://github.com/Operational-Transformation/ot.js/blob/mas...

and this is a good post outlining the basics of OT, from the creator of CodeMirror:

https://marijnhaverbeke.nl/blog/collaborative-editing-cm.htm...

Thanks! Operational transformation is the same technology that powers Google Docs. It's been studied in academia for real-time collaboration since the 1990s and has eventual consistency guarantees. See the Wikipedia article: https://en.wikipedia.org/wiki/Operational_transformation

The Rust operational-transform library was not written by me, but it's listed on crates.io by spebern, and it's worked wonderfully so far. It seems to be a very close port of ot.js (https://github.com/Operational-Transformation/ot.js). The text transformation algorithm isn't very complicated (<700 SLOC including tests), but there's probably room for optimization!