// Store at max 1GB of files
    let mut a = Archivist::new("/tmp/archive", DateTimeTree::default(), 1000).await?;
   
    // Our humble file that we want to keep, but may lose interest after some time 
    let mut f = fs::File::open("/tmp/my_words.txt").unwrap();

    // crate a store object for file compression
    let ss = GzStore::new(Cursor::new(f.clone()));

    // add the file to the archive
    a.add("words.txt.gz", &ss).await?;