PeGa!

+1 to nextcloud / owncloud (actually anything that speaks caldav) integration. You're right @Zren , caldav is a protocol itself and fairly popular. Actually is the same protocol google calendar...

Another one! I just learned that Planka has the perfect feature: https://raw.githubusercontent.com/plankanban/planka/master/demo.gif Honestly I'd love to see something like that working in deck.