[_yb2s]

It seems like this could have some awful unintended consequences... e.g. you setup an alarm that can only be deactivated by scanning a QR code in the next room to force yourself out of bed, but forget to disable it on a business trip- and it goes off during an important early morning meeting and cannot be silenced as you aren't home.

I suspect this is almost always not a great solution to this problem. When I was a young adult I used aggressive alarm measures to get out of bed on time, such as having a very loud alarm clock on the far end of the room, where I had to actually get out of bed to silence it.

I discovered realized needing to do this was caused by a number of fixable health/lifestyle issues: going to bed too late, not getting enough daylight and exercise to sync my circadian rhythm correctly, too much screen time and bright lights before bed, too much coffee late in the day, etc. Nowadays I go to bed by ~8pm everyday, fall asleep quickly, and am up early. I haven't needed an alarm even for important very early events in almost a decade.

[sunaookami]

>and it goes off during an important early morning meeting and cannot be silenced as you aren't home

Couldn't you just forcefully turn the phone off? https://support.apple.com/guide/iphone/iph8903c3ee6/ios

[kvmet]

I have an alarm clock like this and still use it almost daily. The one that I use has an alternate dismissal method for anything fixed to a certain location. (Barcodes, etc.)

My sleep has gotten consistent enough over the years that I could probably get by without it, but it did help significantly with building the habits in the first place.

[ratg13]

What would it matter if it’s a QR alarm clock or a regular alarm clock?

If you forget to disable either, the result is the the same.

I do agree with your other observations, and done the same to regulate my sleep to not need an alarm.