Well, here's to hoping because we really need a stand-in for FF. I realize the irony here in terms of that being the ultimate 'NIH' project but that one I can get behind because the browser landscape is much too fragile. Of course they might end up taking users away from FF rather than from Chrome, Edge or Safari.

In case you didn't know they're using a lot of third-party libraries now for pretty major things: libcurl for http, Skia/Harfbuzz for rendering, libxml, OpenSSL, ffmpeg, etc:

https://github.com/LadybirdBrowser/ladybird/tree/8017f8a7ed3...

The core browser engine, JS/CSS/layout etc will always be original.