What's that one feature you liked so much while distrohopping that you want it by default in all distros?
I have always been discovering new things about Linux distros while distro hopping. And when I get something I really like, I just copy the package name and make sure I install it in every distro I use in the future.
I would say AUR access with either Xfce or MATE as a default and first-class option for DEs. It's hard to go to a distro without AUR access for a lot of what I use, doable, but hard.
BTRFS snapshots like openSUSE and now also Fedora has it. I don't want to use a distro without them anymore. Unfortunately, configuring them yourself is a bit more involved than just installing a package...
Oh, on openSUSE, you don't need to configure anything. Just install with the default partition setup and it will automatically take snapshots of your operating system (/home/ is excluded) whenever there are changes.
It uses incremental snapshots, so they won't take up infinite space...
Everything NixOS (https://nixos.org) does. I am 99% sure that if anyone tries it out and gets comfortable with it they will never change again.
Your configuration is written in code, it is therefore persistent. Do you know that annoying feeling of "oh shit, how did I configure x program that I want to install on this other machine"? Never again.
You can wipe your machine and recover your config in no time. I have 3 machines working with the same config except for small variations. If I change the command to take a screenshot it changes in all of them. If I change my firefox bookmarks it is persisted accross them too. Its awesome.
NixOS generates revisions of your config automatically. Ifyou change something and it breaks you can always use a previous version of your system that you know works to fix it.
The Nix package repository is the largest (by far) in all the linux ecosystem. And, even if a package you want is missing, adding it yourself is not that hard.
I am probably missing other nice things, but those are awesome already.
It's true that the learning curve it a bit steeper than usual, but there is no distro quite like it and even for non coders you can get a lot out of it.
undefined> Your configuration is written in code, it is therefore persistent. Do you know that annoying feeling of “oh shit, how did I configure x program that I want to install on this other machine”? Never again.
Nix has been on my mind for a while, but I've been hesitant to go all in. Unfortunately, messing around a bit with VMs I still don't feel like I have a good handle on how it all works.
One question I'd ask you is how much upfront work it is to get, say, a stable setup for a laptop where all of the little things are working (opening/closing the lid, connecting to external screen, switching audio outputs, media keys. Laptop stuff!)
As context, a long time ago I ran Gentoo and later Arch, so I'm not technically clueless, but eventually decided to switch to easier distros that came with a reasonable system defaults that works out of the box. I'm super interested in NixOS for all the reasons you mentioned, but worried about how time I'll end up spending just getting that config file to where I want it!
The stable setup on the laptop you can get by using a DE like Gnome that comes with batteries included. If you go for more minimal setups like a window manager it will take quite a bit longer.
NixOS as a distribution is pretty easy to get running, if you are familiar with the desktop environment that you install in your system getting it setup is much much simpler than doing so in other distros like Arch, since it usually consists of adding a line like desktopEnvironment.gnome.enable = true to your config and the system takes care of almost everything. I even think that gnome gets installed by default on the first run.
I'd probably say the vast amount of packages that can be installed via the AUR, but since the rising popularity of Flatpak, we're getting incredibly close to this.
My next want would be having the ability to make your system declarative (at least, the initial config) in a fashion that NixOS and Guix do.
For KDE Connect, there's a headless program called mconnect with no Qt (or KDE) dependencies. I use it with the KDE Connect Android app, and it works well. All of the commands on the Linux end are CLI, and many of the functions are supported.
@Owell1984@eshep tmux and Vim are the 2 things I return to every couple of years. I commit to using them everywhere so everything gets stuck in muscle memory and it all becomes second nature. And then I get sick of it and say screw that (for a year or two).