[_neil]

You may want to look at houston [0] and/or helios [1].

[0] https://github.com/nomad/houston

[1] http://helios.io/

[gdeglin]

For Ruby I definitely recommend RPush: https://github.com/rpush/rpush. Helios hasn't been updated in a very long time and has a massive list of unresolved issues.

[_neil]

Thanks. I hadn't seen rpush and it looks great.