I work in theatre tech in Baltimore, and Figure53’s QLab software has a good model: You sign up for an account, you can purchase a license, you can download the

I work in theatre tech in Baltimore, and Figure53’s QLab software has a good model: You sign up for an account, you can purchase a license, you can download the software onto machines, you can open files for free but need a license to save edits, licenses can be activated online or offline-with-a-code, devices basically never need to go online (unless their license has an expiration date), and it all basically just works. There are probably some people who have done the offline activation thing and then never brought the device in question online again (or blackhole Figure53’s DNS from that device), but I think Figure53 has decided to just eat that cost, and I doubt it costs them much.