puredata - 0.51.4-1+deb11u1 main

Pure Data (also known as Pd) is a real-time graphical programming environment
for audio and graphics processing. Pd's audio functions are built-in;
graphical computations require separate packages such as gem (Graphics
Environment for Multimedia) or pd-pdp (Pd Packet).
.
This is a metapackage that depends on all components of the core of Pd.