refactor: move zellij to shared module

nixosConfigurations/gerg-desktop/main.nix

@@ -41,7 +41,6 @@
         vesktop
         gh
         nixfmt-rfc-style
-        zellij
         tidal-hifi
         hyperfine
 
@@ -135,23 +134,6 @@
 
     zsh = {
       shellAliases.cd = "z";
-      interactiveShellInit =
-        let
-          monitorScript = pkgs.replaceVarsWith {
-            src = ./monitor.ps;
-            replacements = builtins.mapAttrs (_: lib.getExe) {
-              inherit (pkgs) perl xdotool;
-            };
-            isExecutable = true;
-          };
-        in
-        ''
-          if [[ -z "$ZELLIJ" ]]; then
-            MONITOR="$(${monitorScript} || true)"
-            zellij attach -c "''${MONITOR:+"$MONITOR@"}$USER"
-            exit
-          fi
-        '';
     };
 
     nix-index = {

nixosConfigurations/gerg-desktop/monitor.ps

@@ -1,45 +0,0 @@
-#!@perl@
-
-use strict;
-
-my %M;    # hash to hold keys from 'xdotool getmouselocation --shell'
-my $pipe; # file handle for the pipes we're going to open
-
-# get the current cursor location into $M{X} and $M{Y}
-open($pipe, "-|", qw(@xdotool@ getmouselocation --shell)) ||
-    die "couldn't open pipe from xdotool: $!\n";
-
-while(<$pipe>) {
-  chomp;
-  my($key, $val) = split /=/;
-  $M{$key} = $val;
-};
-close($pipe);
-
-# compare mouse location to monitor co-ordinates
-open($pipe, "-|", "xrandr") ||
-    die "couldn't open pipe from xrandr: $!\n";
-
-while(<$pipe>) {
-  my ($display, $width, $height, $x_offset, $y_offset);
-
-  next unless m/ connected /;
-  my @F = split;
-  $display = $F[0];
-
-  # co-ordinates are on fourth field (F[3]) on the primary display
-  # or on third field (F[2]) on non-primary displays. Perl arrays
-  # start from zero, not one (same as in bash).
-  if ($F[2] eq "primary") {
-    ($width, $height, $x_offset, $y_offset) = split /[x+]/, $F[3];
-  } else {
-    ($width, $height, $x_offset, $y_offset) = split /[x+]/, $F[2];
-  };
-
-  if ($M{X} >= $x_offset && $M{X} <= $width + $x_offset &&
-      $M{Y} >= $y_offset && $M{Y} <= $height + $y_offset) {
-    print "$display\n";
-    last;
-  };
-};
-close($pipe);