return {
  -- lspconfig
  {
    "neovim/nvim-lspconfig",
    ---@class PluginLspOpts
    --
    init = function ()
      local keys = require("lazyvim.plugins.lsp.keymaps").get()

      -- TODO: setup a new mapping for this
      -- { "gr", "<cmd>Telescope lsp_references<cr>", desc = "References" },
      keys[#keys+1] = { "gr", false }
    end,
    opts = {
      diagnostics = {
        underline = true,
        update_in_insert = false,
        virtual_text = {
          spacing = 4,
          source = "if_mani",
          prefix = "●",
        },
        severity_sort = true,
        signs = {
          text = {
            [vim.diagnostic.severity.ERROR] = " ",
            [vim.diagnostic.severity.WARN]  = " ",
            [vim.diagnostic.severity.HINT]  = " ",
            [vim.diagnostic.severity.INFO]  = " ",
          },
        },
      },
      inlay_hints = { enabled = false, },
      codelens = { enabled = false, },
      document_highlight = { enabled = true, },
      capabilities = {
        workspace = {
          fileOperations = {
            didRename = true,
            willRename = true,
          },
        },
      },
      format = {
        formatting_options = nil,
        timeout_ms = nil,
      },
      -- Automatically format on save
      -- autoformat = false,
      -- LSP Server Settings
      ---@type lspconfig.options
      servers = {
        lua_ls = {
          settings = {
            Lua = {
              workspace = { checkThirdParty = false, },
              codeLens = { enable = true, },
              completion = { callSnippet = "Replace", },
              doc = { privateName = { "^_" }, },
              hint = {
                enable = true,
                setType = false,
                paramType = true,
                paramName = "Disable",
                semicolon = "Disable",
                arrayIndex = "Disable",
              },
              diagnostics = {
                disable = { "missing-fields", },
              },
            },
          },
        },
        -- Add clangd extensions
        -- https://github.com/p00f/clangd_extensions.nvim
      },
      -- you can do any additional lsp server setup here
      -- return true if you don't want this server to be setup with lspconfig
      ---@type table<string, fun(server:string, opts:_.lspconfig.options):boolean?>
      setup = {
        -- example to setup with typescript.nvim
        -- tsserver = function(_, opts)
        --   require("typescript").setup({ server = opts })
        --   return true
        -- end,
        -- Specify * to use this function as a fallback for any server
        -- ["*"] = function(server, opts) end,
      },
    },
  },

  -- cmdline tools and lsp servers
  {

    "williamboman/mason.nvim",
    cmd = "Mason",
    keys = { { "<leader>cm", "<cmd>Mason<cr>", desc = "Mason" } },
    opts = {
      ensure_installed = {
        "stylua",
        "shfmt",
        -- "flake8",
      },
    },
    ---@param opts MasonSettings | {ensure_installed: string[]}
    config = function(_, opts)
      require("mason").setup(opts)
      local mr = require("mason-registry")
      local function ensure_installed()
        for _, tool in ipairs(opts.ensure_installed) do
          local p = mr.get_package(tool)
          if not p:is_installed() then
            p:install()
          end
        end
      end
      if mr.refresh then
        mr.refresh(ensure_installed)
      else
        ensure_installed()
      end
    end,
  },
}