This is a very simple commitment device contract.

The idea is this:

• Suppose you want to form some positive habit, and you want a trusted friend to keep you accountable.
• You deploy this contract with yourself as the subject and some amount XTZ at stake, and list your friends as arbiters of the contract
• Every day, you do the habit, and send a Keep_alive operation
  • It's up to you to be honest (and your friends to keep you honest)
• If 36 hours pass and you don't send the keep-alive, then anyone can steal your stake
  • Why 36 hours? Because 24 is the ideal, but it seems real life would demand some buffer.
• If you want out of the deal, you have two choices:
  • Get one of your arbiter friends to send an Approve_quit operation. Then you can send a Quit operation to gracefully get out of the contract and get your stake back.
  • Quit without their approval. You'll still get your stake back, but the contract will call you out on it by emitting an on-chain event, permanently recording you as a quitter in blockchain history...

I wrote this for myself in over a weekend - don't expect much from it.

THIS CONTRACT HAS NOT BEEN AUDITED! USE AT YOUR OWN RISK.