rust-genetic-algorithm VS xi-editor

See, e.g., https://github.com/xi-editor/xi-editor/issues/655 for why backspace isn't the same as extended grapheme cluster.

As for "display size in monospace font", emojis and CJK characters are usually two units wide, not one (although, to be honest, there's a fair amount of bugs in the Unicode properties that define this).

> thing that gets deleted when you hit backspace

Is there a canonical source for this part, by the way? Xi copied the logic from Android[1] (as per the issue you linked downthread), and I vaguely remember that CLDR had something to say about this too, but I don’t know if there’s any sort of consensus here that’s actually written down anywhere.

[1] https://github.com/xi-editor/xi-editor/pull/837

This is pretty much how copy-on-write ropes work. Check out xi-rope, Ropey or crop, they're all built using B-trees and implement the behavior you described.

Helix is awesome, though once Lapce (spiritual successor to Xi editor) gets the Helix/Kakoune editing model, I may have to jump ship

Home (xi-editor.io)

Have a look at what Lapce uses. The editor is coming along nicely, and iirc, they use the Xi editor as a plug-in.

Raph Levien posted a retrospective about using CRDT’s for collaborative editing in xi-editor here [1]. His conclusion is

“I come to the conclusion that the CRDT is not pulling its (considerable) weight. When I think about a future evolution of xi-editor, I see a much brighter future with a simpler, largely synchronous model, that still of course has enough revision tracking to get good results with asynchronous peers like the language server.”

[1]https://github.com/xi-editor/xi-editor/issues/1187#issuecomm...

Maybe architect kernel as a microservice? There was some text editor developed as a microservice; I don't see why it couldn't work for a FX application or game engine.