Great presentation of the spatie uptime-monitor package.
I loved the 'sitting-on-the-shoulder-of-the-develop' flow where Freek has setup an monitor app from scratch and digged into the testing area.
Great (beta) intro on Golang.
There was a lot of audience interaction and loads of live snippets which are always awesome.
It mainly focused on the code syntax. For myself a novel, I missed some real-world examples (what can you do with it, why should I use this next to PHP).
Nice birds-eye view on 2 tools I haven't been acquainted with. Made me play with it already :)