feat: implement hybrid declarative state with automatic Nix sync

themes/engine/scripts/nomarchy-font-set

@@ -24,14 +24,8 @@ mkdir -p "$STATE_DIR"
 [[ ! -f $STATE_FILE ]] && echo "{}" > "$STATE_FILE"
 
 if fc-list | grep -iq "$font_name"; then
-  TMP_JSON=$(mktemp)
-  jq --arg font "$font_name" '.font = $font' "$STATE_FILE" > "$TMP_JSON" && mv "$TMP_JSON" "$STATE_FILE"
-  echo "Font set to $font_name."
-  echo "NOTE: This change is TEMPORARY and will be lost on the next system rebuild."
-  echo "To make this font permanent, add the following to your /etc/nixos/home.nix:"
-  echo "  nomarchy.fonts.monospace = \"$font_name\";"
-  echo ""
-  echo "Applying changes with nomarchy-env-update..."
+  nomarchy-state-write font "$font_name"
+  echo "Font set to $font_name. Applying changes with nomarchy-env-update..."
 
   if [[ "$no_update" == "true" ]]; then
     echo "Skipping nomarchy-env-update due to --no-update flag."

themes/engine/scripts/nomarchy-theme-bg-next

@@ -45,8 +45,7 @@ done
 NEXT_INDEX=$(((INDEX + 1) % TOTAL))
 NEW_BG="$BG_DIR/${BACKGROUNDS[$NEXT_INDEX]}"
 
-TMP_JSON=$(mktemp)
-jq --arg wp "$NEW_BG" '.wallpaper = $wp' "$STATE_FILE" > "$TMP_JSON" && mv "$TMP_JSON" "$STATE_FILE"
+nomarchy-state-write wallpaper "$NEW_BG"
 
 # Instant feedback via swww
 if pgrep -x swww-daemon >/dev/null; then

themes/engine/scripts/nomarchy-theme-bg-set

@@ -28,8 +28,7 @@ mkdir -p "$STATE_DIR"
 [[ ! -f $STATE_FILE ]] && echo "{}" > "$STATE_FILE"
 
 # Persist the choice for the next rebuild.
-TMP_JSON=$(mktemp)
-jq --arg wp "$BACKGROUND" '.wallpaper = $wp' "$STATE_FILE" > "$TMP_JSON" && mv "$TMP_JSON" "$STATE_FILE"
+nomarchy-state-write wallpaper "$BACKGROUND"
 
 # Create symlink to the new background
 ln -nsf "$BACKGROUND" "$CURRENT_BACKGROUND_LINK"

themes/engine/scripts/nomarchy-theme-set

@@ -34,13 +34,12 @@ if [ ! -d "$THEMES_DIR/$THEME_NAME" ]; then
   exit 1
 fi
 
-TMP_JSON=$(mktemp)
-jq --arg theme "$THEME_NAME" '.theme = $theme' "$STATE_FILE" > "$TMP_JSON" && mv "$TMP_JSON" "$STATE_FILE"
+nomarchy-state-write theme "$THEME_NAME"
 
 # Sync to system state if we have permissions (for system-level theming like browser policies)
 SYSTEM_STATE_FILE="/etc/nixos/state.json"
 if [ -w "$SYSTEM_STATE_FILE" ] || [ -w "/etc/nixos" ]; then
-    tmp=$(mktemp); sudo jq --arg theme "$THEME_NAME" '.theme = $theme' "$SYSTEM_STATE_FILE" > "$tmp" 2>/dev/null && sudo mv "$tmp" "$SYSTEM_STATE_FILE" 2>/dev/null || rm -f "$tmp"
+    nomarchy-state-write --file "$SYSTEM_STATE_FILE" theme "$THEME_NAME"
 fi
 
 # Try to find a background for this theme
@@ -48,17 +47,11 @@ BG_DIR="$THEMES_DIR/$THEME_NAME/backgrounds"
 if [ -d "$BG_DIR" ]; then
   BG=$(ls "$BG_DIR" | head -n 1)
   if [ -n "$BG" ]; then
-    TMP_JSON=$(mktemp)
-    jq --arg wp "$BG_DIR/$BG" '.wallpaper = $wp' "$STATE_FILE" > "$TMP_JSON" && mv "$TMP_JSON" "$STATE_FILE"
+    nomarchy-state-write wallpaper "$BG_DIR/$BG"
   fi
 fi
 
-echo "Theme set to $THEME_NAME."
-echo "NOTE: This change is TEMPORARY and will be lost on the next system rebuild."
-echo "To make this theme permanent, add the following to your /etc/nixos/home.nix:"
-echo "  nomarchy.theme = \"$THEME_NAME\";"
-echo ""
-echo "Applying changes with nomarchy-env-update..."
+echo "Theme set to $THEME_NAME. Applying changes with nomarchy-env-update..."
 
 if [[ "$NO_UPDATE" == "true" ]]; then
   echo "Skipping nomarchy-env-update due to --no-update flag."

themes/engine/scripts/nomarchy-toggle-nightlight

@@ -25,7 +25,6 @@ else
     notify-send -u low "  Nightlight disabled"
 fi
 
-TMP_JSON=$(mktemp)
-jq --argjson val "$NEW_VALUE" '.nightlight = $val' "$STATE_FILE" > "$TMP_JSON" && mv "$TMP_JSON" "$STATE_FILE"
+nomarchy-state-write nightlight "$NEW_VALUE" --type bool
 
 echo "Nightlight state set to $NEW_VALUE."