snet is a small tool that connects to a serialport and then forwards everything it collects from there to tcp sockets
Its unsecure and its only one-directional for the moment, there are currently no plans to fix that
We had a pool of raspberry pi that was running gdb servers and had a lot of printf-debugging going on, this meant we had ssh access and tmux sessions etc on the raspberries for everyone who wanted to try something. It got tedious.