matze OP , 1 month ago Not a bad idea, at least for the beginning. I never heard IFTTT before. Just checked it. May work. So the idea could be: There is a bot that randomly texts a message in a Signal Group that one or all users shall send a picture now. The group may have autodeletion of the pictures (after 24 hours). Limitation: No "Double Picture (at same time)" There is no measurement by software if a picture is too late There is propably no direct notification only to specific users. There is no gaming thing where you get credits, when you are on time.
Not a bad idea, at least for the beginning. I never heard IFTTT before. Just checked it. May work. So the idea could be:
Limitation: