notes installing virtualbox from deb
https://askubuntu.com/questions/1439468/how-to-install-virtualbox-7-0-2-from-deb-in-ubuntu-software-center-after-instal
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vcgencmd measure_temp
$ sudo add-apt-repository universe
$ sudo apt install gnome-tweak-tool
$ gnome-tweaks
$ apt search gnome-shell-extension
$ sudo apt install gnome-shell-extension-gsconnect
$ sudo apt install $(apt search gnome-shell-extension | grep ^gnome | cut -d / -f1)