Automatically lock the desktop when removing the librem key
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@ -50,3 +50,38 @@ Adapt linux version and the UUID to your disk!!
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```
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## Automatically lock the desktop when removing the librem key
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The [instructions](https://docs.puri.sm/Librem_Key/Getting_Started/User_Manual.html#automatically-lock-the-desktop-when-removing-the-librem-key) to lock the screen after unplugging the [Librem Key](https://puri.sm/products/librem-key/#overview) don't work under NixOS.
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This snippet works on my Librem 15v3 laptop running KDE without wayland and is using the xlock from the package xlockmore.
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```nix
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{ pkgs, services , systemd, ... }:
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let
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libremScreenSaver = pkgs.writeScriptBin "libremScreenSaver" ''
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#!${pkgs.bash}/bin/bash
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user=`ps aux | egrep "start_kdeinit|gdm-(wayland|x)-session"| head -n 1 | awk '{print $1}'`
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if [ -n "$user" ]; then
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sudo -u $user DISPLAY=:0 xlock 2>&1 | logger lockScreen for user $user
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else
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logger libremScreenSaver failed to find a user. Not running KDE?
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fi
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'';
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in {
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services.udev.path = [ pkgs.procps pkgs.logger pkgs.gawk pkgs.xlockmore ];
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services.udev.extraRules = ''
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ACTION=="remove", ENV{PRODUCT}=="316d/4c4b/101" RUN+="${pkgs.systemd}/bin/systemctl --no-block start lockScreen@%k.service"
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'';
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systemd.services."lockScreen@" = {
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bindsTo = [ "dev-%i.device"] ;
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path = [ pkgs.procps pkgs.logger pkgs.sudo pkgs.xlockmore pkgs.gawk ] ;
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serviceConfig = {
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Type = "oneshot"; # was simple
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ExecStart = "${libremScreenSaver}/bin/libremScreenSaver %I";
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};
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};
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}
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```
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