Thank you for the clarification. This explanation helps me understand LSP better. The reason I raised this issue was that when I integrate nu lsp with neovim as a plugin to detect nu filetype, it was not successful. I can tell it did not work because LspInfo indicated that an LSP client was not started for the nu filetype. I follow the guideline provided in nvim-lspconfig for nu.

But thank you for the responds thus far. I will keep trying and get back to this based on the responds provided thus far.

i haven't used neovim for a while, but i think you had to manually specify the path the nu binary since for it to work

EDIT: i checked my config: i used https://github.com/zioroboco/nu-ls.nvim since the lsp-config one didn't work for me at the time. i used https://github.com/LhKipp/nvim-nu for syntax-highlighting, but AFAIK it now is a good and active all-in-one nushell config (including LSP).

I followed this as a guide https://github.com/nushell/integrations/blob/main/nvim/init.lua