Hi Dmytri, in your work you mentioned that PPL isn't intended for software. (As it is based on CC-BY-NC-SA which is also not intended for software)

Do you have licensing recommendations for software along the lines of copyfair/copyfarleft?

For the most part the PPL is intended for consumer information commodities, this could be software, but not captial information comodities like server software or programming languages, but rather books, movies, video games, end-user consumer desktop top software, etc.

For capital information goods I recommend the GPL, or even BSD style licenses depending on what it is and who is making it and what their plan is.