I hope there are no healthcare CEOs reading this and if there are, please, for the love of god, do not let your execs or providers use cloud platforms to create apps with HIPAA data in them unless your lawyer is really bored and you have cash to burn on all the fines and lawsuits. Also don't offload yet another responsibility (i.e software development) to the people trying to take care of patients.

You can self-host using workerd.

But I'm certainly not claiming that this alone is sufficient to comply with regulations. I have no idea.