local function my_on_attach(bufnr)
  local api = require "nvim-tree.api"

  local function opts(desc)
    return { desc = "nvim-tree: " .. desc, buffer = bufnr, noremap = true, silent = true, nowait = true }
  end

  -- default mappings
  api.config.mappings.default_on_attach(bufnr)

  -- custom mappings
  vim.keymap.set("n", "<C-$>", api.tree.change_root_to_node, opts('CD')) --cd
end

-- empty setup using defaults
require("nvim-tree").setup({on_attach = my_on_attach,})

vim.g.nvim_tree_respect_buf_cwd = 1

-- disable netrw at the very start of your init.lua
vim.g.loaded_netrw = 1
vim.g.loaded_netrwPlugin = 1