i created a small wiki page for the variant tournament. i will always post the current Wallist, pairings and variant Modus there. i think its easier. you don’t have to scroll that much.
https://wiki.kometin.at/Variant-tournament
Should there be a visual indicator, that G4 is an intersection?
I thought about this too, but not sure how we can improve it.
Coordinates could help with that, being an indicator yet without being on the board/intersection itself.
Or it could be a toggle button, that shows legal placements with like a red spot or some coloured spot
I think a good convention would be that something is a point if it makes a sharp angle and/or has a star point on it. Curves are not points, except if and when they have star points or encounter other lines at sharp angles
By this convention, the recommended solution would be to insert a star point at g4
(This convention is intended to be robust to “map” boards which are highly irregular in an attempt to imitate some geography)
Time to implement graph board star points!
Edit: @Samraku beat me to it, great minds think alike 
In this game I tried to play a little away from the holes at first, and it ended up in weird fighting all over the board since White kept invading “my” corners. White resigned after missing an atari, but I’m not sure it was really that big of a deal since the rest of the group was still alive and there was plenty of undecided area left on the board.
One earlier move that was fun was capturing the tunnel like this:
Probably kind of small, though it did help set up that later atari.
A prototype for this should be live. Please let me know what you think.
It counts down during the very last 10 seconds (e.g. for Byo Yomi, it doesn’t warn you about every period running out), and the seat is colored red.