Hi,
you can install it manually on ZimaOS 1.5.4 – here’s how:
Open ZimaOS Terminal
http://<your-zimaos-ip:7681>
ZimaOS Login: ...
Password: ...
cd /DATA/Downloads -- for example
sudo wget https://github.com/chicohaager/cron/releases/download/v0.2.0/cron.raw
sudo zpkg install /DATA/Downloads/cron.raw
That’s it
Cheers