Do you mean it can only be local? A private Binderhub or a Jupyterhub aren’t allowed?
I haven’t tried it but I think that need is partly what ContainDS Desktop addresses. I don’t know though how feasible it would be walking your non-technical colleagues through installing that and getting your image onto there?
Or install the things in a VirtualBox VM or VMWare Fusion? I cannot comment on how easy this is currently, but here gives you idea of what can be done and how you could walk non-technical people through access what they need.