editor: setting up neovim again

been using helix for a few years now, but wanted to test the neovim
waters again. mostly just ripped off "neovim for newbs"
https://www.youtube.com/watch?v=zHTeCSVAFNY&list=PLsz00TDipIffreIaUNk64KxTIkQaGguqn

home/private_dot_config/nvim/lua/plugins/none-ls.lua

@@ -0,0 +1,14 @@
+return {
+  "nvimtools/none-ls.nvim",
+  config = function()
+    local null_ls = require("null-ls")
+
+    null_ls.setup({
+      sources = {
+        null_ls.builtins.formatting.stylua,
+      },
+    })
+
+    vim.keymap.set("n", "<leader>cf", vim.lsp.buf.format, { desc = "format" })
+  end,
+}