Binary package “zarchive-tools” in ubuntu oracular

tool for creating and reading zstd-compressed files

 ZArchive is yet another file archive format. Think of zip, tar, 7z,
 etc. but with the requirement of allowing random-access reads and
 supporting Zstandard compression.
 .
 This package contains the zarchive tool, that allows you to create and
 read file archives in the ZArchive format (.zar).