danke, danke, at some point I need to polish up the tool I have for making this. I want to add animation support (or more specifically, setting a onion skinning layer and auto-transitions). I've only used Woolietail a handful of time just cause I got super busy after making.
That sounds, not easy ahah. Haven’t dipped my toe into scratch built engines yet, but I know just enough to be impressed by one. Best of luck with the engine and any future projects!