return {
  {
    -- lsp的config
    "neovim/nvim-lspconfig",
    dependencies = {
      "folke/neodev.nvim",
      "hrsh7th/cmp-nvim-lsp",
    },
    config = function()
      require 'neodev'.setup {}

      local servers = {
        lua_ls = require('lsp.lua'),
        clangd = require('lsp.c'),
        bashls = require('lsp.bash'),
        basedpyright = require('lsp.basedpyright'),
        yamlls = require('lsp.yaml'),
        gopls = require('lsp.go'),
        jsonls = require('lsp.json'),
      }

      local capabilities = require('cmp_nvim_lsp').default_capabilities()
      for server, config in pairs(servers) do
        config.capabilities = capabilities
        vim.lsp.config(server, config)
        vim.lsp.enable(server)
      end

      G.map({
        { 'n', '<cs-r>',     '<cmd>lua vim.lsp.buf.rename()<CR>' },
        { 'n', 'gd',         '<cmd>lua vim.lsp.buf.definition()<CR>' },
        { 'n', 'gh',         '<cmd>lua vim.lsp.buf.hover()<CR>' },
        { 'n', 'gD',         '<cmd>lua vim.lsp.buf.declaration()<CR>' },
        { 'n', 'gi',         '<cmd>lua vim.lsp.buf.implementation()<CR>' },
        { 'n', 'gr',         '<cmd>lua vim.lsp.buf.references()<CR>' },
        { 'n', '<cs-i>',     '<cmd>lua vim.lsp.buf.format()<CR>' },
      })
    end
  },
}