{
  plugins = {
    cmp = {
      enable = true;
      autoEnableSources = false;
      settings = {
        sources = [
          { name = "nvim_lsp"; }
          {
            name = "buffer"; # text within current buffer
            option.get_bufnrs.__raw = "vim.api.nvim_list_bufs";
            keywordLength = 3;
          }
          {
            name = "path"; # file system paths
            keywordLength = 3;
          }
          {
            name = "luasnip"; # snippets
            keywordLength = 3;
          }
        ];
      mapping = {
        "<Tab>" = "cmp.mapping(cmp.mapping.select_next_item(), {'i', 's'})";
        "<C-j>" = "cmp.mapping.select_next_item()";
        "<C-k>" = "cmp.mapping.select_prev_item()";
        "<C-e>" = "cmp.mapping.abort()";
        "<C-b>" = "cmp.mapping.scroll_docs(-4)";
        "<C-f>" = "cmp.mapping.scroll_docs(4)";
        "<C-Space>" = "cmp.mapping.complete()";
        "<CR>" = "cmp.mapping.confirm({ select = true })";
        "<S-CR>" = "cmp.mapping.confirm({ behavior = cmp.ConfirmBehavior.Replace, select = true })";
      };};
    };
    cmp-nvim-lsp.enable = true;
    cmp-path.enable = true;
    cmp-buffer.enable = true;
  };
}