vim.api.nvim_create_autocmd({"QuitPre"}, {
    callback = function() vim.cmd("NvimTreeClose") end,
})


local function open_nvim_tree()

  -- open the tree
  require("nvim-tree.api").tree.open()
end

vim.api.nvim_create_autocmd({ "VimEnter" }, { callback = open_nvim_tree })