Hi, I'm Bertil.
I have worked as a consultant, trainer and coach for about 14 years.
The roles I worked in include: scrum master, agile coach, programmer, tester, systems architect, requirements engineer, project manager, and others.

Here's the idea, it's a little twist of the original "Ask me anything" category.

Ask me to write about anything. Just suggest a topic in the comments that you are interested to learn more about.
I will pick one topic and write about it. Maybe more than one topic.

There's a caveat.
I am human, and it would be foolish to claim I know everything.
Chances are: in one or several of the roles I mentioned above, you have deeper knowledge than me. But I am always eager to learn.

So let's see how this little experiment goes.