Monthly Hack'n'ACK events

[miri64]

@miri64

I know its not open source, but anyone be against to at least trying WebEx for the next Hack’n’ACK session instead of Jitsi? Would make things a lot easier at FUB.

Since some unicast invitations with the Jitsi link were already sent out, we decided that at least for the coming Hack’n’ACK, we will stick to Jitsi.