Have you seen that Achim Pankalla has published the source code of version 1.3 of his OS4 version?
https://aminet.net/package/biz/spread/ignition-src
AmigaOne X5000 @ 2GHz / 4GB RAM / Radeon X1650 / AmigaOS 4.1 Final Edition / MorphOS 3.19
Amiga1200 / Blizzard 1230 IV PiStorm32-lite / 128 MB RAM / AmigaOS 3.9
