So we've been sending some Expanders out to folks who have been involved with X1Plus since the very beginning.  It's validating to hear that they're exciting enough for someone else to bother to write a plugin for an I2C module they have lying around!  WolfwithSword, who was responsible for a lot of the MQTT Home Assistant integration work for Bambu printers in general, just submitted this patch to support the PMSA003I air quality sensor.  The data WwS has gotten out of it is very cool so far, showing very reasonable levels when printing with PETG:

And some truly unpleasant results with ASA:

Very cool.  What other sensors do you think are worth adding support for?  How would you render these data on screen?