Neovim setup

Can it be this easy to make nvim stuff just work? Do I really just need
to pull the files in with Home Manager? It seems so, so long as nvim
knows about gcc :)

There is also a related side of tmux here because it all ties together.

modules/home-manager/files/nvim/lua/plugins/mason-lspconfig.lua

@@ -0,0 +1,14 @@
+return {
+  "williamboman/mason-lspconfig.nvim",
+  config = function()
+    require("mason-lspconfig").setup({
+      ensure_installed = {
+        "lua_ls",   -- lua
+        "nil_ls",   -- nix
+        "puppet",   -- puppet
+        "ruff_lsp", -- python
+      }
+    })
+  end
+}
+