patchbay.pub could get a secure mode where the channel is the public key and only can only push to it when you have the private key (e.g, by signing the pushed

patchbay.pub could get a secure mode where the channel is the public key and only can only push to it when you have the private key (e.g, by signing the pushed messages, in case streaming is needed this could be done through splitting it into blocks that get concatenated transparently for the receiver).