Passcodes should be covered by the fifth amendment: when asked to provide them, say “I am exercising my right to remain silent.”

Biometrics, however, are not covered, and cops can point your phone at your face or grab your hand to unlock the device

KeePass + Syncthing

Completely local vault in sync with however many endpoints you need

I’ve heard that people in Kyoto are very uppity and generally anti-tourist