this post was submitted on 13 Apr 2024
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When you hate something so much you have to find weird corner cases to support your views. Even then the way described isn’t how someone who knows that they are doing would do.
The best way for an unprivileged user to manage a service is for that user to run it. That way you inherit the correct permissions / acls / selinux contexts.
The command to do so is:
systemctl --user start the_service.service
Lol. Lmao even. I needed to do this because I wanted to learn the miryoku keyboard layout , and I wanted a way to quickly switch between Miryoku and standard QWERTY. The best way to do this that I could come up with was to bind a special key on my keyboard to toggle kmonad on and off. So I wrote a service for kmonad and gave my user permission to manage it. Running kmonad as my user wouldn't work, because kmonad needs root to create a virtual input device.
Luckily, I am running Void, so the solution was a single well-documented command. Out of curiosity I decided to take a look at what this would look like on systemd distros, leading to this meme. Honestly, I had to do a double take by the time the guy started talking about Javascript.
I feel kind of useless typing this out because you're just gonna ignore it anyway. In my post, I am talking about needing to do X. Your response is "why are you doing X, you should do Y". Why am I not surprised that you're a systemd user? Do you also use Gnome by any chance?
Wait, aren't most desktop environment support switching keyboard layout these days? For example, gnome can do that with super+space or via the language switcher in the top bar. Using a user service to do this seems overkill.
Miryoku isn't a regular layout. It has things like keys that change what they do depending on whether you tap them or hold them. Maybe it's theoretically possible to implement it as a standard XKB layout, but it would not be fun. Usually, Miryoku is implemented in your keyboard firmware. But if your keyboard doesn't support flashing custom firmware (e.g. builtin laptop keyboard), then you have to use a software solution like kmonad, which is a daemon that has to run as root.
As a sidenote, even for some "standard" keyboard layouts there needs to be background process. For example, Chinese and Japanese have too many characters to fit on a keybaord, so they use something called an Input Method Editor. But those usually don't need root, in contrast to kmonad.