The .deb packages that Pisound and most of Patchbox OS rely on have been ported for arm64 architecture, available for bookworm OS release.
The install-pisound.sh and apt-setup.sh scripts have been adjusted accordingly, and will automatically fall back to the previous .deb packages if the OS release is unsupported.
To install the basic Pisound software, run this command:
curl https://blokas.io/pisound/install.sh | sh
To only update the APT packages without installing anything, run this command:
curl https://blokas.io/apt-setup.sh | sh