Hi In-grid,
Since varia would need to access wiki2print.servpub.net (btw it is bad gateway now, but i think it is because it doesn't connect with any internet now), would you point to the documentation that might be useful for them (do they need to install tinc client on their local machine to ssh remotely as well?), and create account (is it on jean server? or both jean and pi) so that they can prepare the installation session?