For the benefit of others' "imposter syndrome", I'll jump in and say it's not just you (the reader, not the parent). It's a really dense article and was really

For the benefit of others' "imposter syndrome", I'll jump in and say it's not just you (the reader, not the parent). It's a really dense article and was really hard for me to follow. And yes, the diagrams are great. I now must spend the rest of the day resisting the urge to redo all my network diagrams in this style. Can anyone grok what diagram software the author is likely using?