This sounds super interesting. I’m not too familiar with go or gRPC but would love to understand the mechanics of this off disk unlock or remote signing. AFK right now but I’ll have a look later and might send a few questions.
it's pretty simple... just a different interface than keyboard input or a file or an environment variable it was written as it was intended to be possible to avoid storing any sensitive data at rest on indra relays for the lightning network setup, probably should be paired with a lock signal as well that is easy to trigger