return {
  -- Autocompletion
  -- https://github.com/hrsh7th/nvim-cmp
  {
    'hrsh7th/nvim-cmp',
    event = 'InsertEnter',
    dependencies = {
      'hrsh7th/cmp-nvim-lsp',
      'L3MON4D3/LuaSnip',
      'saadparwaiz1/cmp_luasnip',
    },
    config = function()
      -- nvim-cmp setup
      local cmp = require 'cmp'
      local luasnip = require 'luasnip'

      cmp.setup {
        view = {
          entries = 'native',
        },
        snippet = {
          expand = function(args)
            luasnip.lsp_expand(args.body)
          end,
        },
        mapping = cmp.mapping.preset.insert {
          ['<C-d>'] = cmp.mapping.scroll_docs(-4),
          ['<C-f>'] = cmp.mapping.scroll_docs(4),
          ['<C-Space>'] = cmp.mapping.complete(),
          ['<CR>'] = cmp.mapping.confirm {
            behavior = cmp.ConfirmBehavior.Replace,
            select = true,
          },
          ['<Tab>'] = cmp.mapping(function(fallback)
            if cmp.visible() then
              cmp.select_next_item()
            elseif luasnip.expand_or_jumpable() then
              luasnip.expand_or_jump()
            else
              fallback()
            end
          end, { 'i', 's' }),
          ['<S-Tab>'] = cmp.mapping(function(fallback)
            if cmp.visible() then
              cmp.select_prev_item()
            elseif luasnip.jumpable(-1) then
              luasnip.jump(-1)
            else
              fallback()
            end
          end, { 'i', 's' }),
        },
        sources = {
          { name = 'nvim_lsp' },
          { name = 'luasnip' },
        },
      }
    end,
  },
}