Thank you! I’m still figuring out my goals here… Could I ask for your recommendation, given the following?

Primary goal: Access my music library from any of my devices (Android, MacOS, Linux), wherever I am in the world, hopefully without paying anyone (or at least not paying a LOT).

Secondary goal (Not sure if I want to do this yet): Let a group of about 12 friends access my library

These responses are SO helpful and I’m genuinely learning so much here. Thank you everyone!

Yes, the bottleneck isn’t software, it’s hardware. We need phones with unlocked bootloaders