feat: fix secrets permissions, move ./packages to flake outputs

packages/dmenu-scrot.nix

@@ -0,0 +1,42 @@
+{
+  writers,
+  lib,
+  dmenu,
+  scrot,
+  libnotify,
+  xclip,
+  screenshotsDirectory ? "/tmp",
+}:
+writers.writeDashBin "dmenu-scrot" ''
+  # ref https://gitlab.com/dwt1/dotfiles/-/blob/master/.dmenu/dmenu-scrot.sh
+  PATH=$PATH:${lib.makeBinPath [dmenu scrot libnotify xclip]}
+
+  APP_NAME="📸 Scrot"
+  IMG_PATH="${screenshotsDirectory}"
+  TIME=3000 #Miliseconds notification should remain visible
+
+  cmd=$(printf "fullscreen\nsection\nupload_fullscreen\nupload_section\n" | dmenu -p 'Screenshot')
+
+  cd "$IMG_PATH" || exit
+  case ''${cmd%% *} in
+    fullscreen)
+      scrot -d 1 \
+        && notify-send -u low -t $TIME -a "$APP_NAME" 'Screenshot (full screen) saved.'
+      ;;
+
+    section)
+      scrot -s \
+        && notify-send -u low -t $TIME -a "$APP_NAME" 'Screenshot (section) saved.'
+      ;;
+
+    upload_fullscreen)
+      scrot -d 1 -e "kpaste < \$f" | tail --lines=1 | xclip -selection clipboard -in \
+        && notify-send -u low -t $TIME -a "$APP_NAME" "Screenshot (full screen) uploaded: $(xclip -selection clipboard -out)"
+      ;;
+
+    upload_section)
+      scrot -s -e "kpaste < \$f" | tail --lines=1 | xclip -selection clipboard -in \
+        &&  notify-send -u low -t $TIME -a "$APP_NAME" "Screenshot (section) uploaded: $(xclip -selection clipboard -out)"
+      ;;
+  esac
+''