“When I purchased my Raspberry Pi4 I kind of expected it to operate under similar conditions as all the former Pi’s I owned …
So I created an Ubuntu Core image for it (you can find info about this at Support for Raspberry Pi 4 on the snapcraft forum)
Runnig lxd on this image off a USB3.1 SSD to build snap packages (it is faster than the Ubuntu Launchpad builders that are used for build.snapcraft.io, so a pretty good device for local development), I quickly noticed the device throttles a lot once it gets a little warmer, so I decided I need a fan.”