Background, from wikipedia: "iMatix CEO Pieter Hintjens registered the zeromq.org domain in May 2007 and started the ØMQ project together with Martin Sustrik,

Background, from wikipedia: "iMatix CEO Pieter Hintjens registered the zeromq.org domain in May 2007 and started the ØMQ project together with Martin Sustrik, who was its architect and lead developer through March 2012. [..] In March 2012, due to disagreements over control of the project, some of the original developers forked ØMQ as Crossroads I/O. Martin Sustrik has started nanomsg, a reboot of the ØMQ core library."