on a compute node, / is maybe 500gb of nvme. thats all the disk it has.

the users mount their $home over nfs. and get whatever quota we assign. can be 100s of tb.

i actually allow rootless podman to run. but frown at it. its not very hard for a few jobs to use up all that 500gb if everyone is using podman.

i don't care if you run apptainer/singularity though. since it exists entirely within your own $home and doesnt use the local disk.