return require('packer').startup(function()
  -- Packer can manage itself
  use 'wbthomason/packer.nvim'

  -- Nova theme for neovim light 
  use({
    "zanglg/nova.nvim",
    config = function()
        -- support both dark and light style
        require("nova").setup({ background = "light" })

        -- load colorscheme
        require("nova").load()
    end,
})

  -- nvim-tree for file manage
  use {
        'kyazdani42/nvim-tree.lua',
        requires = 'kyazdani42/nvim-web-devicons',
    }

  -- vim dashboard
  -- vim 开始界面
  use {'glepnir/dashboard-nvim'}


  -- bufferline on the top
  -- 顶部状态栏
  use {'akinsho/bufferline.nvim', requires = 'kyazdani42/nvim-web-devicons'}

  -- treesitter
  use {
        'nvim-treesitter/nvim-treesitter',
        run = function() require('nvim-treesitter.install').update({ with_sync = true }) end,
    }
  
  -- telescope
  use {
      'nvim-telescope/telescope.nvim',
      requires = { {'nvim-lua/plenary.nvim'} }
}

  -- project
  -- 项目管理
  -- Lua
  use {
    "ahmedkhalf/project.nvim",
}

  -- whick-key
  use {
      'folke/which-key.nvim'
  }

  -- comment
  use {
    'numToStr/Comment.nvim',
}

  -- lualine for bottom stausline
  -- 底部状态栏
  use {
  'nvim-lualine/lualine.nvim',
  requires = { 'kyazdani42/nvim-web-devicons', opt = true }
}

  -- notify
  -- 弹窗消息通知
  use {
    'rcarriga/nvim-notify'
  }

  -- autopairs
  -- 自动补全括号
  use {
	"windwp/nvim-autopairs",
}

  -- coderunner
  -- 代码运行
  use { 'CRAG666/code_runner.nvim', requires = 'nvim-lua/plenary.nvim' }

  -------------------   lsp   --------------------------
  -- mason for lsp dap linter and others
  use {
    "williamboman/mason.nvim",
    "williamboman/mason-lspconfig.nvim",
    "neovim/nvim-lspconfig",
}
 
  -- nlsp-settings
  -- 方便的lsp配置插件
  -- use {
  --   "tamago324/nlsp-settings.nvim"
  -- }

  -- 补全引擎
  use("hrsh7th/nvim-cmp")
  -- Snippet 引擎
  use("hrsh7th/vim-vsnip")
  -- 补全源
  use("hrsh7th/cmp-vsnip")
  use("hrsh7th/cmp-nvim-lsp") -- { name = nvim_lsp }
  use("hrsh7th/cmp-buffer") -- { name = 'buffer' },
  use("hrsh7th/cmp-path") -- { name = 'path' }
  use("hrsh7th/cmp-cmdline") -- { name = 'cmdline' }
  use("hrsh7th/cmp-nvim-lsp-signature-help") -- { name = 'nvim_lsp_signature_help' }
  -- 常见编程语言代码段
  use("rafamadriz/friendly-snippets")
  -- UI 增强
  use("onsails/lspkind-nvim")



  -------------------   dap   -----------------------
  -- dap for neovim
  -- dap ui和适配器
  use { "rcarriga/nvim-dap-ui", requires = {"mfussenegger/nvim-dap"} }

end)