There's some truth to this! I strongly encourage to architect language servers as libraries first and foremost, with LSP being a relatively thin layer on top of

There's some truth to this! I strongly encourage to architect language servers as libraries first and foremost, with LSP being a relatively thin layer on top of protocol-agnostic library, and only _one_ of the ways to consume the results of the analysis. At the same time, libraries, sadly, do not actually exist. I can not easily cook up an `.so` and then hook that up with Emacs, Vim, VS Code, and Helix. Moreover, any crash in an `.so` library brings down the whole process, which isn't a good idea for an IDE. Maybe several years in the future we get an actually good implementation of libraries (I have high hopes for WebAssembly component model), but until then, text-over-stdio can actually be better in practice for some use-cases!