The moment you start charging for access to your hardware you have to start signing SLAs, have documented backups available, have a support team on hand, it’s just a nightmare. Would not recommend.
Yeah great but what about when he dies and nobody else knows how it works? I’ve had to deal with that more than once (creator of Blackboard and creator of IP Office Contact Center, when they died so did the product)
I used to use .local but mDNS can get confused, .home has been fine though