return {

  -- auto completion
  {
    "hrsh7th/nvim-cmp",
    version = false, -- last release is way too old
    event = "InsertEnter",
    dependencies = {
      "hrsh7th/cmp-nvim-lsp",
      "hrsh7th/cmp-buffer",
      "hrsh7th/cmp-path",
    },
    -- Not all LSP servers add brackets when completing a function.
    -- To better deal with this, LazyVim adds a custom option to cmp,
    -- that you can configure. For example:
    --
    -- ```lua
    -- opts = {
    --   auto_brackets = { "python" }
    -- }
    -- ```

    opts = function()
      vim.api.nvim_set_hl(0, "CmpGhostText", { link = "Comment", default = true })
      local cmp = require("cmp")
      local defaults = require("cmp.config.default")()
      return {
        auto_brackets = {}, -- configure any filetype to auto add brackets
        completion = {
          completeopt = "menu,menuone,noinsert",
        },
        mapping = cmp.mapping.preset.insert({
          ["<C-n>"] = cmp.mapping.select_next_item({ behavior = cmp.SelectBehavior.Insert }),
          ["<C-p>"] = cmp.mapping.select_prev_item({ behavior = cmp.SelectBehavior.Insert }),
          ["<C-b>"] = cmp.mapping.scroll_docs(-4),
          ["<C-f>"] = cmp.mapping.scroll_docs(4),
          ["<C-Space>"] = cmp.mapping.complete(),
          ["<C-e>"] = cmp.mapping.abort(),
          ["<CR>"] = cmp.mapping.confirm({ select = true }), -- Accept currently selected item. Set `select` to `false` to only confirm explicitly selected items.
          ["<S-CR>"] = cmp.mapping.confirm({
            behavior = cmp.ConfirmBehavior.Replace,
            select = true,
          }), -- Accept currently selected item. Set `select` to `false` to only confirm explicitly selected items.
          ["<C-CR>"] = function(fallback)
            cmp.abort()
            fallback()
          end,
        }),
        sources = cmp.config.sources({
          { name = "nvim_lsp" },
          { name = "path" },
        }, {
          { name = "buffer" },
        }),
        formatting = {
          format = function(_, item)
            local icons = require("lazyvim.config").icons.kinds
            if icons[item.kind] then
              item.kind = icons[item.kind] .. item.kind
            end
            return item
          end,
        },
        experimental = {
          ghost_text = {
            hl_group = "CmpGhostText",
          },
        },
        sorting = defaults.sorting,
      }
    end,
    ---@param opts cmp.ConfigSchema | {auto_brackets?: string[]}
    config = function(_, opts)
      for _, source in ipairs(opts.sources) do
        source.group_index = source.group_index or 1
      end
      local cmp = require("cmp")
      local Kind = cmp.lsp.CompletionItemKind
      cmp.setup(opts)
      cmp.event:on("confirm_done", function(event)
        if not vim.tbl_contains(opts.auto_brackets or {}, vim.bo.filetype) then
          return
        end
        local entry = event.entry
        local item = entry:get_completion_item()
        if vim.tbl_contains({ Kind.Function, Kind.Method }, item.kind) and item.insertTextFormat ~= 2 then
          local cursor = vim.api.nvim_win_get_cursor(0)
          local prev_char = vim.api.nvim_buf_get_text(0, cursor[1] - 1, cursor[2], cursor[1] - 1, cursor[2] + 1, {})[1]
          if prev_char ~= "(" and prev_char ~= ")" then
            local keys = vim.api.nvim_replace_termcodes("()<left>", false, false, true)
            vim.api.nvim_feedkeys(keys, "i", true)
          end
        end
      end)
    end,
  },

  -- snippets
  vim.snippet
      and {
        "nvim-cmp",
        dependencies = {
          { "rafamadriz/friendly-snippets" },
          { "garymjr/nvim-snippets", opts = { friendly_snippets = true } },
        },
        opts = function(_, opts)
          opts.snippet = {
            expand = function(args)
              vim.snippet.expand(args.body)
            end,
          }
          table.insert(opts.sources, { name = "snippets" })
        end,
        keys = {
          {
            "<Tab>",
            function()
              if vim.snippet.active({ direction = 1 }) then
                vim.schedule(function()
                  vim.snippet.jump(1)
                end)
                return
              end
              return "<Tab>"
            end,
            expr = true,
            silent = true,
            mode = "i",
          },
          {
            "<Tab>",
            function()
              vim.schedule(function()
                vim.snippet.jump(1)
              end)
            end,
            silent = true,
            mode = "s",
          },
          {
            "<S-Tab>",
            function()
              if vim.snippet.active({ direction = -1 }) then
                vim.schedule(function()
                  vim.snippet.jump(-1)
                end)
                return
              end
              return "<S-Tab>"
            end,
            expr = true,
            silent = true,
            mode = { "i", "s" },
          },
        },
      }
    or { import = "lazyvim.plugins.extras.coding.luasnip", enabled = vim.fn.has("nvim-0.10") == 0 },

  -- auto pairs
  {
    "echasnovski/mini.pairs",
    event = "VeryLazy",
    opts = {
      mappings = {
        ["`"] = { action = "closeopen", pair = "``", neigh_pattern = "[^\\`].", register = { cr = false } },
      },
    },
    keys = {
      {
        "<leader>up",
        function()
          vim.g.minipairs_disable = not vim.g.minipairs_disable
          if vim.g.minipairs_disable then
            LazyVim.warn("Disabled auto pairs", { title = "Option" })
          else
            LazyVim.info("Enabled auto pairs", { title = "Option" })
          end
        end,
        desc = "Toggle Auto Pairs",
      },
    },
  },

  -- Fast and feature-rich surround actions. For text that includes
  -- surrounding characters like brackets or quotes, this allows you
  -- to select the text inside, change or modify the surrounding characters,
  -- and more.
  {
    "echasnovski/mini.surround",
    keys = function(_, keys)
      -- Populate the keys based on the user's options
      local plugin = require("lazy.core.config").spec.plugins["mini.surround"]
      local opts = require("lazy.core.plugin").values(plugin, "opts", false)
      local mappings = {
        { opts.mappings.add, desc = "Add Surrounding", mode = { "n", "v" } },
        { opts.mappings.delete, desc = "Delete Surrounding" },
        { opts.mappings.find, desc = "Find Right Surrounding" },
        { opts.mappings.find_left, desc = "Find Left Surrounding" },
        { opts.mappings.highlight, desc = "Highlight Surrounding" },
        { opts.mappings.replace, desc = "Replace Surrounding" },
        { opts.mappings.update_n_lines, desc = "Update `MiniSurround.config.n_lines`" },
      }
      mappings = vim.tbl_filter(function(m)
        return m[1] and #m[1] > 0
      end, mappings)
      return vim.list_extend(mappings, keys)
    end,
    opts = {
      mappings = {
        add = "gsa", -- Add surrounding in Normal and Visual modes
        delete = "gsd", -- Delete surrounding
        find = "gsf", -- Find surrounding (to the right)
        find_left = "gsF", -- Find surrounding (to the left)
        highlight = "gsh", -- Highlight surrounding
        replace = "gsr", -- Replace surrounding
        update_n_lines = "gsn", -- Update `n_lines`
      },
    },
  },

  -- comments
  {
    "JoosepAlviste/nvim-ts-context-commentstring",
    lazy = true,
    opts = {
      enable_autocmd = false,
    },
  },
  {
    import = "lazyvim.plugins.extras.coding.mini-comment",
    enabled = function()
      if vim.fn.has("nvim-0.10") == 1 then
        -- Majestically override the native `get_commentstring` function.
        vim.schedule(function()
          LazyVim.inject.set_upvalue(
            LazyVim.inject.get_upvalue(require("vim._comment").textobject, "get_comment_parts"),
            "get_commentstring",
            function()
              return require("ts_context_commentstring.internal").calculate_commentstring() or vim.bo.commentstring
            end
          )
        end)
      else
        return true
      end
    end,
  },

  -- Better text-objects
  {
    "echasnovski/mini.ai",
    -- keys = {
    --   { "a", mode = { "x", "o" } },
    --   { "i", mode = { "x", "o" } },
    -- },
    event = "VeryLazy",
    opts = function()
      local ai = require("mini.ai")
      return {
        n_lines = 500,
        custom_textobjects = {
          o = ai.gen_spec.treesitter({
            a = { "@block.outer", "@conditional.outer", "@loop.outer" },
            i = { "@block.inner", "@conditional.inner", "@loop.inner" },
          }, {}),
          f = ai.gen_spec.treesitter({ a = "@function.outer", i = "@function.inner" }, {}),
          c = ai.gen_spec.treesitter({ a = "@class.outer", i = "@class.inner" }, {}),
          t = { "<([%p%w]-)%f[^<%w][^<>]->.-</%1>", "^<.->().*()</[^/]->$" },
          d = { "%f[%d]%d+" }, -- digits
          e = { -- Word with case
            {
              "%u[%l%d]+%f[^%l%d]",
              "%f[%S][%l%d]+%f[^%l%d]",
              "%f[%P][%l%d]+%f[^%l%d]",
              "^[%l%d]+%f[^%l%d]",
            },
            "^().*()$",
          },
          g = function() -- Whole buffer, similar to `gg` and 'G' motion
            local from = { line = 1, col = 1 }
            local to = {
              line = vim.fn.line("$"),
              col = math.max(vim.fn.getline("$"):len(), 1),
            }
            return { from = from, to = to }
          end,
          u = ai.gen_spec.function_call(), -- u for "Usage"
          U = ai.gen_spec.function_call({ name_pattern = "[%w_]" }), -- without dot in function name
        },
      }
    end,
    config = function(_, opts)
      require("mini.ai").setup(opts)
      -- register all text objects with which-key
      LazyVim.on_load("which-key.nvim", function()
        ---@type table<string, string|table>
        local i = {
          [" "] = "Whitespace",
          ['"'] = 'Balanced "',
          ["'"] = "Balanced '",
          ["`"] = "Balanced `",
          ["("] = "Balanced (",
          [")"] = "Balanced ) including white-space",
          [">"] = "Balanced > including white-space",
          ["<lt>"] = "Balanced <",
          ["]"] = "Balanced ] including white-space",
          ["["] = "Balanced [",
          ["}"] = "Balanced } including white-space",
          ["{"] = "Balanced {",
          ["?"] = "User Prompt",
          _ = "Underscore",
          a = "Argument",
          b = "Balanced ), ], }",
          c = "Class",
          d = "Digit(s)",
          e = "Word in CamelCase & snake_case",
          f = "Function",
          g = "Entire file",
          o = "Block, conditional, loop",
          q = "Quote `, \", '",
          t = "Tag",
          u = "Use/call function & method",
          U = "Use/call without dot in name",
        }
        local a = vim.deepcopy(i)
        for k, v in pairs(a) do
          a[k] = v:gsub(" including.*", "")
        end

        local ic = vim.deepcopy(i)
        local ac = vim.deepcopy(a)
        for key, name in pairs({ n = "Next", l = "Last" }) do
          i[key] = vim.tbl_extend("force", { name = "Inside " .. name .. " textobject" }, ic)
          a[key] = vim.tbl_extend("force", { name = "Around " .. name .. " textobject" }, ac)
        end
        require("which-key").register({
          mode = { "o", "x" },
          i = i,
          a = a,
        })
      end)
    end,
  },
}