Yep, you can do this. Stefan & Michael are also both correct.
If you want a jumpstart on how to do this, check out the public helm chart here:
That chart is for multi-node clusters, not single node community. So to get what you'd want, you would:
Remove the read replica statefulset
Adjust the image on the core set to use the community image
Keep in mind that there's no point in scaling the stateful set, you should never have more than 1. If you scale up a statefulset of community pods, you end up with multiple independent databases, not a bigger single database.