I created a small integration so you can control your blink(1) usb rgb led. Currently it works only as an rgb light, but I am planning to support effects and/or the watchdog function later on.
The main use case is to have a status indicator which shows what is happening in your Home Assistant in the blink of an eye (pun intended) .
The repo is here: https://github.com/tnagels/ha-blink1_status. You can use this in any way you want, but also at your own risk.