Show blood sugar history and live data from nightscout in your macOS task bar via this bitbar plugin.
Shows last 3 hours data, trend, delta from last reading, insulin on board, carbs, battery and minutes since last data.
To add to bitbar: clone, yarn|npm install then create nightscout.30s.sh (to check every 30 secs):
#!/bin/bash
/usr/local/bin/node ~/bitbar/bitbar-nightscout/nightscout.js