+1, to make this work you'd need a standardized schema, and well-defined, relatively stable interfaces. Github, some kind of programming ecosystem (eg: Android

+1, to make this work you'd need a standardized schema, and well-defined, relatively stable interfaces. Github, some kind of programming ecosystem (eg: Android libraries or Python Flask server modules), or a cloud system (with the associated problems of vendor lock-in which could be mitigated via federation and open-sourcing the system) seem like the best way to distribute these. For example, Salesforce has made this work by giving every customer a standard base schema, and then letting developers build modules on top of that: https://appexchange.salesforce.com/ https://appexchange.salesforce.com/ The hard part is designing a core schema that is sufficiently useful and powerful such that people adopt it, while still allowing sufficient per-user customization so that the system can meet specific customer needs. And then when people start using custom extensions to the core schema, ensuring that all the plug-ins and extensions interoperate seamlessly with the huge number of possible combinations.