this post was submitted on 01 Jan 2024
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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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https://mullvad.net/en/help/install-mullvad-app-linux

Trying to install VPN and these are the instructions Mullvad is giving me. This is ridiculous. There must be a more simple way. I know how to follow the instructions but I have no idea what I'm doing here. Can't I just download a file and install it? I'm on Ubuntu.

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[–] [email protected] 3 points 10 months ago (1 children)

A “package” goes beyond library or app, basically by being part of a package management system:

  • I has a version number in a standardized format, which package managers can use to reason about dependencies
  • It declares its own dependencies, with version constraints. It will have entries like “In order to run I need a copy of jsonReader version at least 0.12.1”

I think that might be it.

Just in the same way both rice and bread come in a package at the grocery store, and both of their packaging has nutrition info, UPC barcode, and net weight printed on it. The packaging itself allows these goods to be distributed through a particular system.

The barcode is part of the packaging standard, and then the “package management” processes of retail use that barcode for their own inventory management, checkout, etc.

[–] [email protected] 2 points 10 months ago (1 children)

Your analogy makes a lot of sense. I think that knowledge will be useful. Thanks.

[–] [email protected] 2 points 10 months ago

I realized there’s quite a bit more metadata that a package provides to its package management system. Here’s an example package definition, in the programming language Ruby: https://github.com/thoughtbot/factory_bot/blob/main/factory_bot.gemspec

It defines, among other things:

  • author
  • license
  • dependencies
  • version
  • name
  • description
  • link to project webpage