The Deep Dive into EX4 Decompilers on GitHub: Reality, Risks, and Resources
Most GitHub repositories for this topic are either for older, proprietary decompilers or debugging tools rather than full "one-click" source code restorers. Notable GitHub Projects ex4 decompiler github
If you only need to change a small parameter (like a hardcoded expiration date), a Hex Editor might be more effective than a full decompiler. The Deep Dive into EX4 Decompilers on GitHub: