If you write code to SQL Server then you might be interested in this: at the end of 2017 I wrote a tSQLt tdd training course which has helped over 300 people learn both tSQLt and how to apply TDD practices to their SQL Server T-SQL development, you can join the course at https://courses.agilesql.club. The course is free if you are happy to wait 10 weeks to complete it, with 1 lesson being made available per week - if you are in more of a hurry or you would like to help support the project you can purchase the course which makes it instantly available to you.
Last night I had a lot of fun presenting on one of my favorite topics, MARS and SQL Server protocols including a rather fun live demo.
The slides and demo apps are available: https://github.com/GoEddie/SQLSupper-WhenMarsAttacks
If anyone wants to know more about MARS or TDS feel free to contact me as always :)