OK, demo time. Project done in 57 minutes, including learning everything I had to learn. I changed the Poll WebXDC app to D21 Poll. D21 is a voting system described by Karel Janeček. You drop it into a DeltaChat group (or any other WebXDC supporting app). And you have full D21 voting, for example on your favourite restaurant.

It suggests you how many plus and minus points you can assign. Example - if you want to choose among 5 restaurants, you choose two (different) ones you like and one you don't like. The results are much better than simple +1 voting system.

Code: https://github.com/jooray/d21poll
WebXDC file to drop to DeltaChat conversation here: https://github.com/jooray/d21poll/releases/tag/v1.0
Demo: https://jooray.github.io/d21poll/index.html
(You can add a fictional participant on bottom left "Add Peer", which simulates WebXDC functionality in your web browser).

We need this for Bitchat!