+* [Debian "stretch": 40 RC bugs](https://lists.debian.org/debian-devel-announce/2017/04/msg00008.html)
+* [Linux from Scratch](https://en.wikipedia.org/wiki/Linux_From_Scratch)
+* Certification
+ * [LPI](https://www.lpice.eu/)
+ * [Linux Foundation](https://training.linuxfoundation.org/certification)
+ * [Paper Exams](https://lpievent.lpice.eu/)
+* [Linuxwochen Wien 2017](https://cfp.linuxwochen.at/de/LWW17/public/schedule)
+ * [Elektra Initiative](https://cfp.linuxwochen.at/de/LWW17/public/events/566)
+ * [PyDays Vienna](http://pydays.at/_static/schedule.html)