I'm working on a part-time unpaid startup now and everyone seems to be full of energy at the start. However as we go along, everyone seems to start losing grip and considering it as one of their ordinary day jobs.
Considering it's part-time and unpaid, folks get burned out and they no longer want to sacrifice their personal lives. I know that such setup is very difficult to work, anyhow, what are your tips for keeping the folks motivated, engaged and consistent in terms of delivery?