Introducing ONCESomething happened to business software. You used to pay for it once, install it, and run it. Whether on someone’s computer, or a server for everyone, it felt like you owned it. And you did. Today, most software is a service. Not owned, but rented. Buying it enters you into a perpetual landlord–tenant agreement. Every month you pay for essentially the same thing you had last month. And if you stop
