return {
  "AstroNvim/astrolsp",
  opts = {
    -- Diagnostics configuration (for vim.diagnostics.config({...})) when diagnostics are on
    diagnostics = {
      virtual_text = true,
      underline = true,
    },
    -- customize lsp formatting options
    formatting = {
      -- control auto formatting on save
      format_on_save = {
        enabled = true, -- enable or disable format on save globally
        allow_filetypes = { -- enable format on save for specified filetypes only
          -- "go",
        },
        ignore_filetypes = { -- disable format on save for specified filetypes
          -- "python",
        },
      },
      disabled = { -- disable formatting capabilities for the listed language servers
        -- disable lua_ls formatting capability if you want to use StyLua to format your lua code
        -- "lua_ls",
      },
      timeout_ms = 1000, -- default format timeout
      -- filter = function(client) -- fully override the default formatting function
      --   return true
      -- end
    },
    -- enable servers that you already have installed without mason
    servers = {
      -- "pyright"
    },
    -- customize language server configuration options passed to `lspconfig`
    config = {
      -- clangd = { capabilities = { offsetEncoding = "utf-8" } },
    },
  },
}