I worked in groceries story when I was younger.
But funily enough, it’s probably one of the rare times I’d have answered “yes”!
We got a policy here where anything mislabelled under 10$ is free for the first item. Anything over 10$ gets a 10$ rebate.
My understanding is that it was put in place a while ago when stores stopped labelling individual items to keep them in check and ensure that consumers had a recourse in case of mistake.
Source: https://www.opc.gouv.qc.ca/en/consumer/topic/price-discount/store/tip-sheet/
NULL being “no money” by any definition, and the regular price for this probably being under 10$… well, it’s probably free!
As others have mentionned downloading the .deb and running it will also work, but I feel nobody gave your a tldr of why you may want to follow those instructions instead, so here it is:
Those instructions configure your package manager (apt) with a new repository for this application.
The upside to that is that anytime you will look for updates, this app will also get updated.
It’s a bit more work up front, but it can pay off when you have dozens of app updating as part of normal system operations.
Imagine a world where windows updates would also update all your software, that’s what this is.