I think MPLv2 with or without xGPL compatibility clause (or EPLv2) are a good midway between xGPL and Apache / MIT. If you're really worried about copycats or

I think MPLv2 with or without xGPL compatibility clause (or EPLv2) are a good midway between xGPL and Apache / MIT. If you're really worried about copycats or leechers, you might want to consider either close sourcing / restrictively licensing [0] the very important bits of the stack that matter to paying customers (like GitLab does with their "buyer-based open core model" [1]). Note though, open source has always been about commoditizing loss leaders [2] or commoditizing a product's complement [3]... never quite has been a good business model in and of its own. [0] https://polyformproject.org/licenses/ https://polyformproject.org/licenses/ [1] https://www.heavybit.com/library/video/commercial-open-source-business-strategies/ https://www.heavybit.com/library/video/commercial-open-sourc... [2] http://dtrace.org/blogs/bmc/2018/12/14/open-source-confronts-its-midlife-crisis/ http://dtrace.org/blogs/bmc/2018/12/14/open-source-confronts... [3] https://www.joelonsoftware.com/2002/06/12/strategy-letter-v/ https://www.joelonsoftware.com/2002/06/12/strategy-letter-v/