This script will download the Joplin source and package it into a DEB file. The DEB file should be installable on relatively modern Debian/Ubuntu like OS'. Tested on Debian 11, your mileage may vary.

Requirements:

Docker installed

apt-get install docker.io
sudo gpasswd -a $USER docker

Usage:

./joplin-deb.sh joplin-version

Example:

./joplin-deb.sh 2.5.12

If the build is successful, it will create a DEB file in the current user's Downloads folder.

Install it with:

sudo apt install ~/Downloads/joplin-desktop_*.deb