have alarms pop up for Google Calendar events

By 'alarm', I mean it has to be persistent, snoozable, and require interaction.

This would likely be a third-party app that syncs with Google Calendar.

starting points

• https://android.stackexchange.com/questions/62746/is-there-a-way-to-get-google-calendar-reminders-to-act-like-alarms
• https://www.reddit.com/r/androidapps/comments/1mrm203/best_way_to_do_alarm_clock_style_alarms/
• https://www.reddit.com/r/androidapps/comments/1fuq9he/repeating_calendar_notifications_using_alarm/

app search

Allows you to continue using Google Calendar as the front-end:

• You can just use a extra-long audio file, if you're fine with it not requiring interaction. [1]
• Calendar Event Reminder
• Calendar Alarm Clock Reminder
• Business Calendar 2
• TimeNoder2
• A MacroDroid script [1]

You have to use a different front-end:

• CalenGoo [Play store]

loose threads

The "missing notifications" issue:

• https://www.reddit.com/r/GooglePixel/comments/1ajdey0/problems_with_notifications_of_3rd_party_calendar/
• https://xdaforums.com/t/notifications-of-3rd-party-calendar-apps-after-update-to-android-14-are-unreliable.4713282/