The question is a legal question. This is* not* legal advice.
I have not done this with any Julia code. I did do something similar some
years ago with other source code.
Understanding that permission may be contingent on an agreement to pay
money, the gist of it was:
LICENCE:
For strictly non-commercial use, including education and research, the MIT
licence applies.
For all other uses, including without limitation, any effort intended to
generate income,
written permission must be obtained from the author prior to use.
On Friday, February 5, 2016 at 5:54:32 PM UTC-5, Páll Haraldsson wrote:
>
> On Friday, February 5, 2016 at 3:10:54 PM UTC, Scott Jones wrote:
>>
>> I'm curious about how one could release packages for use with Julia such
>> that they would be free for non-commercial use (under GPL maybe?) but also
>> available with a paid license for commercial use.
>>
>
> I guess you know, it's just not completely clear: You can't release under
> GPL and, say only non-commercial is only ok (neither can you with any
> permissive/OSI certified license or DFSG-compliant that inspired OSI/it's
> based on).
>
> Effectively, even if GPL allows commercial use, you might be putting off
> many of your competitors, by using it, because of it "viral" (or
> "spider-plant"-nature). Since/when you own the copyright you can release
> under any other (proprietary) license forcing to pay, for using and getting
> out of the viral nature.
>
> One thing the GPL (or any license? at least free/open source) doesn't
> forbid (and it's not like it's easy to know anyway), is using privately
> within you whole organization/company. Then you can link with whatever
> other software (just not distribute/convey outside).
>
> One even stricter license, might help you, AGPL based on the GPLv3. Then
> you force your competitor to release code, if the code to any user of a
> server you have ("software as a service").
>
>
> https://people.debian.org/~bap/dfsg-faq.html
>
> https://www.debian.org/social_contract
>
> https://opensource.org/licenses
>
> Has anybody else done this?
>>
>> As much as possible, I'd like to release things under the MIT license,
>> however, there are many things that might be useful to other Julians, that
>> they (the company I'm consulting for) don't want to give away for free to a
>> commercial competitor (we need to eat also!).
>>
>>
>>
