I don't see how this is different than learning how your 10-year-old garage door opener or 20-year-old furnace works.
I don't see how this is different than learning how your 10-year-old garage door opener or 20-year-old furnace works.
The fact that you do this has nothing to do with what I'm talking about. You and I are not representative for this.
What button? I've got a detached garage, so it doesn't make sense to have a button inside. And when the previous residents were (apparently) evicted, they took various keys, remotes, etc with them. I most certainly had to buy a remote and find my garage door opener's manual to get it working. Damned if I was going to pay a garage door repairman to come out and hit a few buttons for me.
Your typical HN reader is probably willing and able to reprogram the thing on their own, but this is not normal.