@twostraws eight years ago I was waiting to get through the publishing process for my Swift book with Peachpit Press. It took ages to print and distribute and was a complete flop (at least partly) because it was out of date before it hit the shelves.
It wasn’t long after I saw Hacking with Swift that I realised that print publishing for tech books was effectively dead, and that you’d done an amazing job of embracing the new way to publish and teach. I salute you!