I wasn't sure if I should give it a rating, it is 4 years old now, lots of things changed.
Part of it ain't working as supposed to, I couldn't launch that Vagrant thingy thus I had to scrape my own site as OLX.pl is banning scrapers (or just mine).
But overall it lays some basic foundations - like items, scrapers, pipelines and even basic deploy information.
Even though it is quite dated I got some good 101 out of it