The "Sober October" challenge I've been doing with my friends for the past couple of years. The friendly exercise competition keeps us accountable and motivated.
Incredibly fit computer scientist Alan Turing, who was known for running 60km to work.
What it does
The contract uses a Chainlink Oracle to fetch the level of cardiovascular strain exerted by both parties in the contract (measured by A Whoop fitness tracker). It they are both have a strain level of greater than or equal to 7.0 (on a scale of 21), the contract awards both parties with a TuringToken NFT. Otherwise they both receive a retryToken.
How its built
Dealing with "callback hell" in the Marlowe contract
Getting the Oracle to accept the authorization token to access the strain data.
Marlowe doesn't accept Oracle data yet, so the Oracle and contract aren't actually connected.