On prem can mean self manageable to a small or large degree. You can also sell a managed on-prem setup where you set it up and maintain it in the client enviro

On prem can mean self manageable to a small or large degree. You can also sell a managed on-prem setup where you set it up and maintain it in the client environment. It’s not a huge pain in the ass as long as the software is reasonably designed to be multi-tenancy as well as multi server. For serverless architectures creating an internal service provider to route to your serverless (or theirs). A lot of non prem can be made easier by ring azure friendly which in turn has some ways to get on prem easier.