Depends on the desired degree of help and autonomy. Not exact same situation, but the solution was along the lines of setting things up for the remote desktop.

Depends on the desired degree of help and autonomy. Not exact same situation, but the solution was along the lines of setting things up for the remote desktop. First I configured the router for remote access. This step was the least secure. The objective was to set up port-forwarding for SSH. Once the tunnel is configured, the remote admin acccess on the router is no longer needed. Then set up an SSH server the and remote desktop. In my case the remote OS was Ubuntu, so it was relatively straightforward, but did involve some typing/copypasting. Once the remote desktop was up, the rest is just use it on-demand as needed. This approach could likely be made more simpler, but the router part may still be needed, and in my experience this was the most difficult and critical task to clear remotely.