Decades ago, if you had a hospital that wanted to look at MRImages
a normal  way to get Freesurfer  onto a computer was using  a disk
image  of  a  linux  with  it successfully   installed   and  some
virtualisation chicanery. 

Now we are decades into the cloud hellscape.

I speculate that there are two potential avenues for deployment to
low skill users now, one heavy and one light. 

The heavy way is very popular:  Because it is so obscure to have a
usable  and offline  device,  single  board computers  are all the
rage. For less than a hundred dollars, you can have something like
a sane physical device hopefully  untouched by cloud miasma.  Less
than a hundred is still a pretty big number and what are you gonna
do, carry around 10 devices? So I call it heavy. 

Here is the light way I want to try- given how fast and large  USB
drives  are now, I think that software  can be distributed  as pen
drives   = modern  game cartridges,  and the proprietary  OS  hung
around the low skilled user's neck can just be skipped. 

Live media OSes are already  popular depending  on the circles you
move in, and fast/big-enough thumb drives are kind of cheap. 

The forces of anti-freedom  have been experimenting  with  devices
where  non-proprietary  usb image boot is mysteriously  broken and
will never be fixed like some Microsoft/Googlebooks (and of course
iOSBSD). And besides, what are the boot options for this device? 

Still  I  think it is promising  because  other than censoring   a
device's  ability to boot, the approach  is hidden  from cloud and
based on widespread cheap physical devices.