return {
  {
    "hrsh7th/nvim-cmp",
    dependencies = {
      "hrsh7th/cmp-buffer",
      "hrsh7th/cmp-path",
      "hrsh7th/cmp-cmdline",
      "L3MON4D3/LuaSnip",
      "saadparwaiz1/cmp_luasnip",
    },
    config = function()
      local luasnip = require("luasnip")
      local cmp = require("cmp")

      require("luasnip.loaders.from_vscode").lazy_load()

      local has_words_before = function()
        unpack = unpack or table.unpack
        local line, col = unpack(vim.api.nvim_win_get_cursor(0))
        return col ~= 0 and vim.api.nvim_buf_get_lines(0, line - 1, line, true)[1]:sub(col, col):match("%s") == nil
      end

      cmp.setup({
        snippet = {
          expand = function(args)
            luasnip.lsp_expand(args.body)
          end,
        },
        mapping = {
          ["<Tab>"] = cmp.mapping(function(fallback)
            if cmp.visible() then cmp.select_next_item()
            elseif luasnip.expand_or_jumpable() then luasnip.expand_or_jump()
            elseif has_words_before() then cmp.complete()
            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" }),
          ['<C-Space>'] = cmp.mapping.complete(),
          ['<C-e>'] = cmp.mapping.abort(),
          ['<CR>'] = cmp.mapping.confirm({ select = true }),
        },
        sources = cmp.config.sources({
          { name = 'nvim_lsp' },
          { name = 'luasnip' },
        }, {
          { name = 'buffer' },
        })
      })
      cmp.setup.filetype('gitcommit', {
        sources = cmp.config.sources(
          {{ name = 'git' }}, 
          {{ name = 'buffer' }}
        )
      })
      cmp.setup.cmdline({ '/', '?' }, {
        mapping = cmp.mapping.preset.cmdline(),
        sources = {{ name = 'buffer' }}
      })
      cmp.setup.cmdline(':', {
        mapping = cmp.mapping.preset.cmdline(),
        sources = cmp.config.sources(
          {{ name = 'path' }},
          {{ name = 'cmdline' }}
        )
      })
    end,
  },
}