This app was mentioned in 8 comments, with an average of 0.75 upvotes
It looks like Simple Alarm Clock ccan do the essentials, but I've had some minor issues (and annoyances, such as no per-alarm volume).
I might just patch in per-alarm volume and try using it for a while as it's open source.
The tone is specific to the alarm so find the alarm and change the sound there. You can use this clock if you can't find it: https://play.google.com/store/apps/details?id=com.better.alarm
Thanks for your reply and guidance! I am going to hold off on testing out modded apps until I get a few days off in a row (thanksgiving :) ). I may also go back to using Alarmist with Simple Alarm Clock (source); see also this thread from 2017.
Thanks for your reply. See this thread... https://www.reddit.com/r/pebble/comments/6yeuyt/alarmist_on_android_oreo_dead_android/
...for an .apk that will work with this alarm app. https://play.google.com/store/apps/details?id=com.better.alarm
Even better, here's the copied link from that thread (I didn't create it): https://drive.google.com/open?id=0B44ViMZB_HX-aFE4ZEhKN3JSaTg
You'll have to uninstall the old version and reboot for it to work properly.
?? Find an app and set an alarm to remind you, at 10pm everyday, to "push the button"?
For example
https://play.google.com/store/apps/details?id=com.better.alarm
Is this "no cost" option acceptable?
Timely is too much glitz for me. Here is the app I'm using. https://play.google.com/store/apps/details?id=com.better.alarm
Its no frills but has a long press to stop the alarm option.