I'm a big believer in commercial open-source. Free for startups, personal use, some others. Others pay for licenses. Sustainable long-term.https://twitter.com/hhariri/status/916919153444950017 …
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There are ways to effectively achieve that, but it you make such a rule directly, it's not open source which is a ™ & has conditions for use
Most obvious & clean way is to just choose a real open source license whose terms are too restrictive for most big commercial users (GPLv3).
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