I think a potentially interesting use case for Ladybird is as a "contenteditable" polyfill. With their dependancy free stack I'm guessing it's not out of the realms of possibility to compile it to WASM and HTML canvas. Having to only target one rendering engine when developing a rich text editor would be much better than the current nightmare it is. (There would be an accessibility problem to solve, we need some new…
Son what i'm hearing is that you're looking forward to browser-in-a-browser as if that's somehow not the most depressing trend I didn't know about
Google Docs used to be contenteditable based, but moved to a custom rendering engine. They are a large enough company to be able to invest in that. Small businesses aren't, and have to rely on content editable.
Ladybird as a contenteditable polyfill would help smaller teams, or single developers, achieve the same, while also building on the existing tooling and APIs for contenteditable.