How is the community testing their NCM scripts?

We have NCM running on a server in our datacenter, and I want to start learning and using it for our production environment. But, as a hobbyist coder, I know that without testing code prior to deployment in a production environment is asking for trouble.

I have Cisco VIRL, but it's local and only accessible via my local machine/local VMs. We do not have CML nor do we have a lab currently.

What can the community suggest to me for script testing prior to production deployment?

Thanks in advance,

Adam