You can roll back if you have the older version on disk if you didn’t install newer dependencies that make them incompatible with your system

I have this issue with sysd manager, the characters are all boxes in the latest flatpak

Nix installs the deps separately if they are different versions and lets you install any version, even some ancient one

Never used it, but I’m fairly sure you can’t have conflicting dependencies with pacman. If package A requires a new dependency version and package B requires an older one you can’t have both installed

Uninstall uninstalls the package. I want to use an older working version

Sometimes I just want to roll back one piece of software. Try doing that with flatpak

You need them like you need fire extinguishers

My Ubuntu LTS upgrade failed. Would have killed for a rollback

Nix, yes, because it has rollbacks

Here’s how you install Gnome in nixos

services.desktopManager.gnome.enable = true;

Here’s how you also install gdm

services.displayManager.gdm.enable = true;

It’s about remembering that you did. I have no idea what changes I’ve made to my ancient Ubuntu box so if an upgrade borks my system again I’m SOL

Also, a Nix upgrade won’t break your system, unlike Ubuntu

It doesn’t show me the number! I can’t just select 1080p to run my game at 1080p full screen on the iGPU because there is no number

Furthermore, I don’t even know the current resolution (but it’s too slow to run even ancient games at retina on the iGPU)

If it’s not exactly 1080p then my full screen sensitivity is different! The higher resolution means my 800 dpi feels slower

There’s an unstable channel. Because of how nix works you can mix different channel packages since deps are independent (nothing is installed system wide)

here is how mine looks like

It just says bigger or smaller, doesn’t say what the resolution is

That is also true for NixOS. Since it’s declarative, the only things that break when you switch DEs are the settings the DEs themselves change when you run them

I’ve used a Mac. It won’t even let me set the screen resolution to an exact pixel value. It doesn’t even say the number, it’s insane how dumbed down it is

I run an Ubuntu server and I make the history keep a lot of entries so I remember which files I changed

It shouldn’t have to be like this

Isn’t this how Non-Torvalds Linus bricked his install

I google stuff in the brave search google engine

Okay, I’d have to think of a more pure example, but you get the idea. Downloads and support not free, but compile it yourself if you want

I could potentially just say it costs money to use this software, but allow you to build it yourself if you don’t want to

It’s called Red Hat Enterprise Linux (RHEL) in case you were wondering

Because I understand the former

The latter can both summon nasal demons and not summon nasal demons. It is in a state superposition until an observer consults the manual