Atkmm is a C++ interface for ATK, accessibility toolkit used by Gtk+ library. It provides a familiar interface for C++ programmers to add accessibility features to their applications.

Zstd, short for Zstandard, is a fast lossless compression algorithm, targeting real-time compression scenarios at zlib-level compression ratio.

Seafile is a file syncing and sharing software with file encryption and group sharing, emphasis on reliability and high performance.

This package provides a utility that can choose the best Debian mirror by downloading the full mirror list and using netselect to find the fastest/closest one.