Comment by ButlerianJihad

Neither of the two licenses are open-source licenses. In particular, the licenses are encumbered by the noncommercial restrictions.

https://creativecommons.org/licenses/by-nc-sa/4.0/

The outputs, rather than the source code, are said to be under this CC-BY-NC-SA licensing.

https://opensource.org/osd

I am not familiar with Polyform, but my cursory research indicates that this family of licenses is deliberately and consistently non-open-source.

https://polyformproject.org/about

It is profoundly deceptive to post this headlining as "Open-source" when it is deliberately not.