Send the owner the desktop app, then have them type this code in it:
Keep the phone plugged in 24/7. Charging stops at the upper limit and resumes at the lower one — the USB-C link stays alive the whole time.
Create several GrapheneOS user profiles at once and clone an app into each. New profiles appear here and in the profile switcher shortly after.
Send photos and videos straight to the phone's gallery (DCIM/Camera), at full original quality. The phone must be online.
Live agent log (newest at the bottom, refreshes every 2s).