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Some of these "open source" options are not really open source.

- Outline uses the Business Source License 1.1, which eventually becomes open source (Apache 2) four years after each release. https://github.com/outline/outline/blob/main/LICENSE

- Invoice Ninja uses Elastic License 2.0 (ELv2), which allows you to host it for yourself, but not for other people. https://github.com/invoiceninja/invoiceninja/blob/master/LIC...

Source code available is not the same thing as open source.




Also https://n8n.io is not OSI approved open-source, it is rather https://faircode.io licensed instead. Disclaimer: I am the founder


I'm actually not sure if the 2 cases you cited actually violate the OSI's Open Source Definition: https://opensource.org/docs/osd

Anyone care to clarify? I know that open source != free software, and you can read about that on wikipedia: https://en.wikipedia.org/wiki/Open_source#Open_source_as_a_t...


IIRC the OSI has outright stated that the Elastic License ain't open source. Not sure about that first one, though.


Right, they should also note the "freemium" ones like Odoo, which has a botchered "Open Source" version vs the Enterprise version.




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