STAY - Keep the Days You Got

This is a submission for Weekend Challenge: Dog Days Edition What I Built Dogs don't stay long enough. That is the entire idea behind STAY. STAY is an interactive experience about time, attention, and memory. It compresses the life of a dog into a few minutes, lets you experience the small choices that make up that life, and then gives you a way to preserve the moments that mattered. The experience begins with Milo as a puppy. You spend his life making ordinary decisions: take the walk finish some work play for a while take the photo go somewhere new stay home give him the shoe he already destroyed anyway There is no perfect route. There is no "good owner" score. Life keeps moving either way. Milo grows from puppy to young dog, adult, mature dog, and eventually senior. His behaviour changes with him. He reacts quickly when he is young. He becomes calmer as he grows. Familiar toys and places return years later. His movements slow down. And somewhere in the interface, the number of days he has left keeps falling. The thesis behind STAY is simple: You cannot give a dog more years. You can give their years more life. Eventually, Milo's life ends. There is no dramatic death animation. For the whole experience, you have learned to expect Milo to occupy part of the screen. Then that space is empty. What remains are the moments you chose to keep. Those memories can be preserved as a verifiable proof on Solana devnet. But STAY does not end with simulated Milo. After his Memory Box is complete, the experience asks one final thing: Milo's story was simulated. Yours isn't. From there, users can photograph or upload a real moment with their own dog, add a name, date, and short note, and create a cryptographic attestation for that memory. The photograph itself does not need to live on-chain. Instead, STAY hashes the image locally, creates a deterministic memory manifest, and commits the proof through a real Solana transaction. The day will still disappear. The proof that it happe