I think the assumption is that the average Linux user will easily figure out installing DBeaver and PostgreSQL by themselves, plus installation methods will vary depending on distribution. I'm a Linux user and I'd certainly skip that video.
That's a pretty lazy assumption if you're providing a how-to video. Especially since:
1. There are new Linux users every day
2. The Mac/Windows users will most likely have to install PostgreSQL on a Linux server eventually for production anyway
It would be very beneficial to at least add instructions for installing on a Debian based distribution like Ubuntu, since that would cover the vast majority of Linux users, especially newer users.
Yes, but exclusion suggests that there might be use of software later that doesn't allow it, or that there's some difference -- like they do some DB thing and it doesn't work if you're using ext/zfs/whatever. Remember it's for non-experts, people may not even know(?) that pgsql and such are freely available to them.
At least having the add-apt-repository line in the course manual saves you looking for it on the DBeaver page.
Aside: I've been doing a the Standford machine learning course and it includes installing in the required work, so I did the install on Windows as instructed (what a pallaver) and only then realised it was entirely optional just not presented as such and so then did `sudo apt install octave`, messed around with a few test queries, and was done with the entire second lesson.
