For reasons not worth explaining, I have a context where I cannot easily install plugins. If it’s absolutely needed, I can try, but chances are I’ll be forced to use a different editor instead.

I’ve read quite a bit, so I am fairly familiar with what needs to be done at a high level. Problem is most guides are around Mason, mason-lspconfig and nvim-lspconfig, which I’m trying to avoid. I’m not being stubborn, I have a bad context.

The good news are:

• Mason: I don’t need it. Both typescript and typescript-language-server are available through npm
• nvim-lspconfig: I don’t need it. The docs say this plugin is just convenience. Meaning I should be able to do whatever this does manually (I reckon with a ton of effort though)
• mason-lspconfig: I don’t need it, as I wouldn’t be using any of the above.

If I understood correctly, the next step is to start the server. I headed over to :help lsp and I got from there I need to call something like this

vim.lsp.start({
  name = 'tsserver',
  cmd = {'tsserver'},
  root_dir = vim.fs.dirname(vim.fs.find({'tsconfig.json', 'package.json'}, { upward = true })[1]),
})

I put the above in my init.lua, restarted, tried <C-X> <C-O> in insert mode, but nothing came up.

At this point, I have a bunch of questions:

• Is it not working because I should somehow use typescript-language-server instead of tsserver in the config above?
• Maybe it could be working, but I’m just missing some setup for omnifunc
• Am I completely in the wrong path?

I have tried my best to find a guide or video where this manual setup is explained but have had no luck.

Could I get some guidance?