For world-specific features (like combat), activate the behavior pack in the World Settings Important Considerations Performance
"Repack" typically implies a modified or bundled version that is optimized for easier installation or includes extra features tailored for specific versions like 1.20+ or 1.21. Key Features of Java Addon V8 java addon v8 repack
Need to validate a JSON Schema using ajv ? Or parse a date using moment.js ? V8 + the repack allows you to call Node.js modules inside Java. For world-specific features (like combat)