Passkeys explained — the next step beyond passwords

Plus: testing an ink tank printer, blood oxygen returns to Apple Watch, and a VHS-inspired video app.

Hello and welcome to another edition of the Rich on Tech Newsletter.

My mom’s been in town for a few weeks, which means my schedule has been anything but normal — way more activities than I’d usually cram into a workweek.

It’s been great having her around as the kids head back to school. She’s even been picking the bumper music for my radio show — and jud…