https://www.engadget.com/ifixit-wants-to-fix-the-soldering-iron-130040690.html
iFixit has made a smart soldering iron to improve everyone's repair work.
I regularly power both my ts100 and Pinecil with a Milwaukee M18 battery and the barrel connector this is super convenient. The display is also convenient. The fact that you need the battery to set the temp seems numb and completely negates the USBC convenience because it means you can't use any old USBC power source and still change the temperature. The 100w is also pointless because the other two options already heat incredibly fast and have a higher max temperature.
I have a ts100, and the barrel plug is loose enough that it sometimes disconnects in the middle of working and loses its temperature setting. Got a Pinecil to replace it, but haven't used it much yet.
You can do that with a Pinecil too, there is a web-bluetooth frontend available for the V2 (the V1 doesn't have Bluetooth).