Go London User Group: September gophers
18 Sep 2019 at Deliveroo

Michal gave an interesting lightning talk on concurrent goroutines.
He started simply and nicely built up more and more extensive examples.
If I had any criticism it was the speed of delivery, perhaps to fit the lightning format.
I got slightly lost at the end with the rapid scrolling around a couple of the final documents.
Great effort though and nice to watch someone who is clearly enjoying the whole subject.
Well done.

An enjoyable talk from Dave on Jsonnet. Not a project I'd previously been aware of.
I like talks that make me want to run off and research the whole subject area.
Aside from a few minor technical issues, I thought the talk was well paced and interesting.
I thought is was interesting how Go was able to take on that C++ role of providing a baseline for the different language implementations.
More talks like these please 😀

Excellent talk from Eleni. I love the surprise of learning something new on a well trodden subject.
Some hopefully constructive comments from me.
The use of dep was slightly distracting, use modules to keep your audience focused.
I also liked how you built up the code with the test results alongside. It really worked well on that big Deliveroo screen.
Well done.

A very clear presentation and explanation of the less known aspects of the testing package. The trace diagrams were excellent at illustrating the different modes of execution (sequential vs parallel), and it was nice to learn about t.Parallel() and why we need to re-assign the tc variable at the start of the loop. Well done for keeping the talk focused on just a few key points as that made it easy to follow and gave it all a nice structure. Oh and it was nice to use the sorting algorithms as example code! My only bit of advice would be to sometimes slow down and pause for a moment to let the audience digest what is shown on the slides :)

Great talk, you covered a lot! Just a few comments:
* I'd recommend using go modules instead of dep,
* give people time to read your slides,
* don't be afraid of silence or repeating yourself -- people need time to think and absorb what you've said.
Thanks! :)