Install packages from elforest

1. Add our public GPG key to allow apt to authenticate the elforest repository:

wget -qO- https://deb.elforest.se/debian/deb@elforest.se.gpg.key | gpg --dearmor | sudo tee /usr/share/keyrings/elforest-keyring.gpg

2. Create a new file /etc/apt/sources.list.d/elforest.list with the following content:

deb [signed-by=/usr/share/keyrings/elforest-keyring.gpg] https://deb.elforest.se/debian elforest main

3. Update apt package list:

sudo apt update

4. Install canlogplot:

sudo apt install canlogplot