That's my old tool for use additional space on the disk on the illegal track's 36/41-42
We can talk about programming drives. I tried still compatibile between 1571/70/1541C/1541 II (1570/71 in single mode (GCR) without MFM of course). Some times like here www.youtube.com/watch?v=Q76ZepI_44Y you can do realtime 3d vertex calculated in drive. Sadly here is 2KB of RAM only.
About tape is really little to say. Only ABC turbo. Sometimes people done IRQ tape loaders, but allways tape was very very slow. Even in ABC turbo