"ADF"? "ZIP"? Why do refuse to provide this in a standard LhA archive and upload it to Aminet so that every AmigaOS user can download it?
Sorry, that doesn't make any sense at all. LhA is a file format, not a floppy format. Having to download the image to your Amiga, then extract it to a floppy and finally be able to read the files is just like going across the river for water. A standard LhA archive has been the standard way of distributing files for decades - they are tiny, efficient and super fast to use.