libdsk-utils binary package in Ubuntu Focal riscv64

 LibDsk contains libraries and tools for handling disc images, for example
 in emulators or to access images of vintage computers and consoles.
 .
 It has support for the following disc types:
 .
  - Raw files (including /dev/fdn).
  - Raw files, rearranged into logical filesystem order.
  - .DSK files, as used in CPCEMU, JOYCE and other Sinclair/Amstrad emulators.
  - MYZ80 hard drive image files.
  - NanoWasp floppy image files.
  - .CFI (Compressed Floppy Image) files, as created by FDCOPY.COM under DOS.
  - CopyQM files
  - TeleDisk files
  - Compaq QRST files
  - APRIDISK image files
  - The LDBS format
  - The SAP format
 .
 This package contains stand-alone utilities to handle disk images on the
 command line.

Source package