I interviewed Max Howell, the creator of Homebrew

Homebrew is one of the few open source products that is really marketed well. I don't use it, but the brand recognition it has created for itself is really commendable, and something that most opensource developers should learn from.

Was he able to solve the binary tree question this time?

Ah yes, I knew his name sounded familiar. He's the one proposing that weird mix of NFT and cryptocurrency stuff with Tea.