handbook/docs/beyond_basics/_examples/DL-101-147-111

$ cat .datalad/config
[datalad "dataset"]
	id = d95bafc8-f2a4-d27b-dcf4-bb99f4bea973
[datalad "containers.midterm-software"]
	image = .datalad/environments/midterm-software/image
	cmdexec = singularity exec -B {{pwd}} {img} {cmd}