I have no idea what it was. It looks like he was on granny's iPad. I think one of the reasons he likes coming here is so he gets fewer nags!
"What happens at granny's house stays at granny's house".
Simple QRP projects, 10m, 8m, 6m, 4m, FT8, 160m, WSPR, LF/MF, sub-9kHz, nanowaves and other random stuff, some not related to amateur radio.
This has been the home of vicars for 650 years.