I tried to go inside the Resources file in the Contents of Pd-0.56-0.
1- I click on "pd" : answer of the Terminal:
Last login: Fri Aug 1 11:27:14 on ttys001 /Applications/Pd-0.56-0.app/Contents/Resources/bin/pd ; exit; mauricemoncozet@Mac-mini-de-Maurice ~ % /Applications/ Pd-0.56-0.app/Contents/Resources/bin/pd ; exit;
2- Click on pd-gui
Last login: Fri Aug 1 11:29:29 on ttys000 /Applications/Pd-0.56-0.app/Contents/Resources/bin/pd-gui ; exit; mauricemoncozet@Mac-mini-de-Maurice ~ % /Applications/ Pd-0.56-0.app/Contents/Resources/bin/pd-gui ; exit; /Applications/Pd-0.56-0.app/Contents/Resources/bin/pd-gui: line 18: /usr/local/lib/pd/tcl/pd-gui.tcl: No such file or directory /Applications/Pd-0.56-0.app/Contents/Resources/bin/pd-gui: line 18: exec: /usr/local/lib/pd/tcl/pd-gui.tcl: cannot execute: No such file or directory
Saving session... ...copying shared history... ...saving history...truncating history files... ...completed.
[Opération terminée]
3- click on pd-watchdog
Last login: Fri Aug 1 11:30:29 on ttys001 /Applications/Pd-0.56-0.app/Contents/Resources/bin/pd-watchdog ; exit; mauricemoncozet@Mac-mini-de-Maurice ~ % /Applications/ Pd-0.56-0.app/Contents/Resources/bin/pd-watchdog ; exit; watchdog: signaling pd... zsh: warning: 1 jobs SIGHUPed zsh: hangup /Applications/ Pd-0.56-0.app/Contents/Resources/bin/pd-watchdog
Saving session... ...copying shared history... ...saving history...truncating history files... ...completed.
[Opération terminée]
4- The command proposed by IOhannes m zmölnig
Last login: Fri Aug 1 11:39:33 on ttys001 mauricemoncozet@Mac-mini-de-Maurice ~ % /Applications/ Pd-0.56-0.app/Contents/Resources/bin/pd -stderr -verbose Pd-0.56.0 ("") compiled 00:36:10 Jul 30 2025 float precision = 32 bits port 50221 "/Applications/Pd-0.56-0.app/Contents/Resources/../MacOS/Pd" 50221 Waiting for connection request... ... connected input channels = 4, output channels = 4 MIDI input (Volt 476P) opened. /Applications/Pd-0.56-0.app/Contents/Resources/bin/pd-watchdog echo $?