We have rocket attack alerts inside apps, and telegram bot (hate it).
Thinking about something like menu bar status for macOS, maybe some xbar plugin updated every 3-5 minutes with status changing in menu bar.
And for iOS something like Scriptable widget, also refreshing every 3-5 minutes. Or maybe some Widgetsmith options for lock screen widget.
Still looking to get API for this, in progress. Until then, could you please suggest best possible solution for such applications?