Some details about my setup (although I've moved back to lazy.nvim instead of vim.pack): https://www.jonashietala.se/blog/2025/10/29/packing_neovim_w...
Also, your treesitter auto install makes a common mistake: vim file type and treesitter grammar names don't match up. IE a .tsx file has a vim filetype of `typescriptreact` while the treesitter parser is named "tsx". You'll need something like this https://github.com/nvim-lua/kickstart.nvim/blob/cfdc17be3ae1..., and there's still the note that the `vim.treesitter.language.get_lang` call isn't really doing anything, since that function returns whatever is passed in if no parser matching the name has been registered. So that check is moot.
I had some bugs with moving between a laptop and desktop and pack's lockfile kept getting out of sync, and pack didn't handle it well and sometimes even crashed. My build script also sometimes didn't work properly. I just got tired of dealing with it so I went back to lazy.nvim as it just works and does what I need.
