JASM is an assembler/disassembler for JVM bytecode. It provides a nice syntax for writing JVM classes in a bytecode-focused assembly language, and can also disassemble any Java .class file to JASM ...
There are many use cases for direct ASM injections and the power to re-transform every loaded class. AsmFabricLoader adds an even more early entry point than FabricMC's PreLaunchEntrypoint. You can ...