NixOS. You can do whatever you want but what and how?!

I want to add astro support to my nvim config

treesitter, lsp config & lsp itself

How do i find it It’s not in search.nixos.org, not in nix search nixpkgs astrojs or nix-env -qaP | grep astro-ls

It is in nixpkgs/pkgs/development/node-packages/node-packages.nix @astrojs/language-server