You sell value adds. This is often in the form of consulting (see JBoss and others) but can also be in the form of commercial plugins/extensions while your full

You sell value adds. This is often in the form of consulting (see JBoss and others) but can also be in the form of commercial plugins/extensions while your fully functional core. If you go the second route though, remember that people will notice and you'll lose users as soon as you start gatekeeping commits in order to keep your commercial plugin attractive. Instead, continue to add value to your plugins through services, hosting, new features. This is a variant of the Open Core model (https://en.wikipedia.org/wiki/Open-core_model https://en.wikipedia.org/wiki/Open-core_model), used by Kafka and others.