We have made a demo of the Fort Processor demonstrating how it works as a standalone synth and with an instrument connected to the input.
We currently have the full ready built synth for purchase on the Fort Process Crowdfunder:
Please email us if you want to purchase the PCB on it's own at: firstname.lastname@example.org
Pictures of the PCB and artwork
To connect the Fort Processor's input and output sockets to other equipment (e.g. amplifier, mixer, instruments) we suggest a need a cable like this. Find it on Amazon.