After the hardware has been set up, most of the job is done; to finish our job, we need to first install a tool to get access to our Twitter account, and then we have to add a mechanism to call it each time a successful identification process is accomplished. So, in the following sections I'm going to show how to install and correctly set up a command line tool to communicate with Twitter and then how to call it in three different programming languages for three different identification systems.
To simplify the project a bit, we can use a static list of known IDs stored in each program, but you can understand that this list can be easily managed by an external database. So, I leave this implementation as an exercise for you.