Hi Alex, nice to know that we can count on upstream for this one. I have updated the page at https://wiki.debian.org/Javascript/Nodejs/Tasks/Pump.io which was stuck at pump.io 0.3.0.
The count of missing packages has gone up from about 40 to over 90, so it's going to be a long way before we can even try to package pump.io. This is similar to what we see for Etherpad (https://bugs.debian.org/576998), yarn (https://bugs.debian.org/843021) and others. The state of the nodejs ecosystem in Debian is such that we struggle to package the nitty-gritty dependencies, and the useful stuff remains out of reach. Paolo