ITK-SNAP (http://www.itksnap.org/pmwiki/pmwiki.php, sourceforge: https://sourceforge.net/projects/itk-snap/ ) software in apptainer
apptainer build ./itk-snap.sif ./itk-snap.def
just run
./itk-snap.sif
to start GUI. All app binaries are in PATH.
Tested on Rocky Linux 8, apptainer-1.2.2-1.x86_64.