ah - you mean this cron job here:
‘RTK base with a Raspberry pi4 and SimpleRTK2B - #8 by Valentin’
Yes, running a cron job every minute boils down to a watchdog.
However, in my case, the str2str are not gone, and I have 3 of them:
~$ pidof str2str
633975 633859 633453
So I have to modify the idea.