From Wikipedia, the free encyclopedia
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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There has always been the option of installing software from source. The package manager won't update anything installed from source.
You don't have to use Flatpak, Snap or AppImage if you don't want to. If you use the package manager to install everything, it will update everything.
What I think the biggest problem with the traditional package managers is that (1) they don't isolate packages from each other (when you install a program files are placed in many random places, like /usr/bin, /usr/lib etc) and (2) you can't have multiple versions of the same package installed at the same time.
This creates a lot of work for package maintainers who need to constantly keep packages up to date as dependencies are updated.
Also, because of this, every distro is essentially an insane dependency tree where changing even one small core package could break everything.
Because of this, backwards compatibility on Linux is terrible. If you need to run an older application which depends on older packages, your only choice is to download an older distro.
This is what snap and flatpak try to solve. I think they are not great solutions, because they ended up being an extra package manager next to the traditional package managers. Until we see a distro that uses flatpak or something similar exclusively, the problem is not solved.
What I think the biggest problem with the traditional package managers is that (1) they don’t isolate packages from each other (when you install a program files are placed in many random places, like /usr/bin, /usr/lib etc) and (2) you can’t have multiple versions of the same package installed at the same time.
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Huh, I stopped using Linux long ago, and I hardly understand any of the issues you are facing... can someone ELI5?