gplv3 public-domain ruby-language pd nbc gpl3 ruby-lang pdnet pdnet-plus-plus pdsnet pdsnet-plus-plus public-domain-streaming-network public-domain-streaming-network-plus public-domain-streaming-network-plus-plus pdsnet-plus-plus-channels pdnet-plus-plus-channels public-domain-streaming pdnet-plus-plus-channels-nbc nbc-channel pdsnet-plus-plus-channels-nbc