I once saw a presentation from a man who build entire products this way. He automates hiring contractor devs based on their review scores, sends them to a huge

I once saw a presentation from a man who build entire products this way. He automates hiring contractor devs based on their review scores, sends them to a huge Trello board that they use to self-onboard and then take on tasks, and automatically tracks of their progress by Trello cards completed and amount of code written. He said he just spends 10 minutes a day firing contractors that aren't doing good enough, and maybe adding a new card to Trello now and then. This presentation was almost a decade ago so this automation might be a full product of its own by now. No saying if his product was any good or still exists, though