When can I provision my own eSIM/iSIMs? GSMA has a massive monopoly on the market preventing me from being able to provision my own SIM applications into the iS

When can I provision my own eSIM/iSIMs? GSMA has a massive monopoly on the market preventing me from being able to provision my own SIM applications into the iSIM/eSIM because they have a certificate chain you must follow. I'm working with private LTE networks at such small scale that I need to provision eSIMs for a handful of users and literally no eSIM provider that's been GSMA blessed will work with us.