From F-Droid on EDS: "* Supports VeraCrypt(R), TrueCrypt(R), LUKS, EncFs container formats." So I am ready to go: LUKS for the USB stick on the PC and EDS Lite on the phone. 📱 Thanks, TheJollyRoger (Although I will certainly have more questions while learning how to best set up my GOS-4XL 😉)