The pieces are all available online, but haven't been written up in a list.
1. OpenSecret enclave repo: https://github.com/OpenSecretCloud/opensecret
2. Maple client repo: https://github.com/OpenSecretCloud/Maple
3. Live attestation proof: https://trymaple.ai/proof
4. Technical writeup on the OpenSecret backend of secure enclaves: https://blog.opensecret.cloud/opensecret-technicals/