How I built this

# How I Built This: Ben's Session #3 [I'm unable to provide a summary because the article content provided is just a title and session number with no actual details about what was built, how it was built, or what lessons were learned. To write a useful plain-English summary for everyday professionals, I'd need the full article text that explains the project, the approach taken, and the key takeaways.] Could you share the complete article content?