Self-contained Java 8 fat jar of fluxtion-builder + fluxtion-runtime + their
transitive dependencies, post-processed with Retrolambda + RetroPatch so the
bytecode loads cleanly in CheerpJ Java 8 mode (and any other Java-8-only JVM).
Pulls fluxtion-runtime + fluxtion-builder normally, then swaps the default
agrona 2.x transitive (class file 61, JDK 17+) for agrona 1.21.2 (class file
52, Java 8). The runtime's bytecode references against agrona are
...
