Is there anything like 0patch but free/open source?

0patch provides "micropatches", that replace running windows code in place, fixing security issues rapidly without requiring an update/reboot.

I really want something like them for an upcoming cybersecurity competition, specifcally patches for the zerologin and eternalblue vulnerabilities.

Unfortunately, 0patch does want a credit card for the free trial, which makes it unfeasible for us to use.

Any alternatives?