Followed the installation instructions, this led to a non-working installation. The RabbitMQ log files showed a crash right after `volcap` connected: ``` 2023-06-20 15:58:29.654000+02:00 [error] <0.738.0> exception exit: {unexpected_message,{'EXIT',#Port<0.123>,einval}} ``` Tried many different things, but finally uninstalled RabbitMQ and Erlang, re-installed Erlang 25.3 and RabbitMQ. Then things worked.