There are various ways to stay up to date, or get in toutch if you use, or are planning to use Machinekit. These channels are listed below
Machinekit Google group
Users and developers discuss Machinekit in the Machinekit Google group. The group can be accessed via the web or subscribed to as an email list:
Both means are equivalent, and give access to the same postings.
Machinekit GitHub issue tracker
There’s a Gitter channel at https://gitter.im/machinekit/machinekit