tusen-ai / simpledet

A Simple and Versatile Framework for Object Detection and Instance Recognition
Apache License 2.0
3.08k stars 488 forks source link

License issues/conflicts! #280

Closed jpizarrom closed 4 years ago

jpizarrom commented 4 years ago

There is a license file https://github.com/TuSimple/simpledet/blob/master/LICENSE But in the readme says "This project is release under the Apache 2.0 license for non-commercial usage. For commercial usage, please contact us for another license."

I understand that an Apache 2.0 permits commercial use.What does "For commercial usage, please contact us for another license." means?

Thanks

RogerChern commented 4 years ago

Dual licensing is quite common for open source projects. The core idea behind dual-licensing is that the community HAS NO obligation to provide any form of support for commercial usage.

On Mon, Dec 23, 2019 at 7:36 AM jpizarrom notifications@github.com wrote:

There is a license file https://github.com/TuSimple/simpledet/blob/master/LICENSE But in the readme says "This project is release under the Apache 2.0 license for non-commercial usage. For commercial usage, please contact us for another license."

I understand that an Apache 2.0 permits commercial use.What does "For commercial usage, please contact us for another license." means?

Thanks

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jpizarrom commented 4 years ago

I want to know if I am allow to develop a commercial app using simpledet. I suppose the Apache 2.0 license give permit to do that.

Is that right?

RogerChern commented 4 years ago

Yes. As a matter of fact, NO popular licenses restrict commercial usage of open source projects.

On Sat, Dec 28, 2019 at 5:21 AM jpizarrom notifications@github.com wrote:

I want to know if I am allow to develop a commercial app using simpledet. I suppose the Apache 2.0 license give permit to do that.

Is that right?

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jpizarrom commented 4 years ago

"As a permissive license, the Apache 2.0 license does not prevent extra restrictions" https://opensource.stackexchange.com/a/7401

RogerChern commented 4 years ago

Well, not quite a license lawyer myself. But I am aware of there are many open source projects like Qt, MongoDB are dual licensed.

And I am closing the issue due to it is way off-topic.

On Thu, Jan 2, 2020 at 6:05 AM jpizarrom notifications@github.com wrote:

"As a permissive license, the Apache 2.0 license does not prevent extra restrictions" https://opensource.stackexchange.com/a/7401

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jpizarrom commented 4 years ago

"The freedom to run the program for any purpose" in https://www.qt.io/faq/, it include commercial and non-commercial

They use dual license in different way.