it could be done evenings or weekends. i'd make it async/flextime as much as possible. the main point is to try a real project, however small, and pay the person, therefore it's real and fair for both parties. from my observation over a few decades, all other methods are noise and circuses and mysticism and propaganda in comparison. at least, I'm so done letting myself be the victim of other people's theories and guesses and unpaid meta makework.