I would like it if my Android phone could do a simple check every ten minutes such as a DNS lookup or web page check. Then... if a particular condition is met, I'd like the phone to enable the GPS, get the phone's coordinates, and send them to me via XMPP or email. I'd also like all of this to happen without having to use someone else's servers. Is this actually possible? And is there existing software that can do it? #askfedi