content: no change, it can be made better. but sadly only released as source code someone else has, or you, to compile. things released as text, prose, non-compiled source code, if not stolen copyrighted works are in USA historically unencumbered. Especially if non-proftit. Refer to source distributions in book and electronic form of PGP. (yes printed books ready to OCR!) PGP: Source Code and Internals Hardcover – June 9, 1995 Refer to source distributions in tshirt and electronic form of DeCSS for DVD. (yes tshirts!) https://www.wired.com/2000/08/court-to-address-decss-t-shirt/ Refer to non executable distribution of "AACS encryption key controversy" in poems and lyrics , for a BluRay key needing killing (revoked on future plastic). an "illegal number!": https://en.wikipedia.org/wiki/AACS_encryption_key_controversy https://en.wikipedia.org/wiki/Illegal_number CLEAN ROOM efforts to replicate SDKS and OS calls in ReactOS, merely have the engineers sign oathes that they "never saw or looked at" Microsoft source code, nor reverse engineered it using automated tools. That's good enough for California state civil suits regarding "clean room coding"/ https://en.wikipedia.org/wiki/Clean_room_design