@John-Hart I'm brand new to Onion, but I've been working on getting a TP-Link MR3020 to do this under OpenWRT (which I understand is what Onion is running on, I believe). The issue in getting small portable routers to do this is that the OpenVPN client takes a lot of space. Much more than you typically have available in small routers (not sure of the onion yet). There I had to move the root file system off onto a usb drive (which is why I chose the MR3020, it has a USB port intended for 3g dongles). It's been quite a project, but I've got the file system moved over and now have huge space in my file system and installed the OpenVPN client. I haven't gotten it to connect to my OpenVPN server quite yet, but I'm not giving up.