Creative Commons licenses aren’t recommend for software[1], but you can use the Zero-Clause BSD License[2] to satisfy the same goals as CC0.
[1] https://creativecommons.org/faq/#can-i-apply-a-creative-comm...
[1] https://creativecommons.org/faq/#can-i-apply-a-creative-comm...
> Also, the CC0 Public Domain Dedication is GPL-compatible and acceptable for software. For details, see the relevant CC0 FAQ entry.