MedLOG is a medical logging tool. It provides a web based UI with a set of buttons. Pressing one of them, logs the button name and the time to a file encrypted using GPG.
export MEDLOG_KEY=user@example.com
python app.py
You should run this software behind an nginx / apache that terminates SSL / HTTPS. Do not run over plain HTTP or a man-in-the-middle attack could make all the encryption pointless.