Basically wrote the whole thing.

config.py

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+import os
+
+# Configuration constants for the SWIPER application
+# --------------------------------------------------
+# Centralising these values avoids circular imports
+# and makes it easy to update paths / ports later
+
+# Base directory of the repo (this file lives in the project root)
+BASE_DIR = os.path.dirname(os.path.abspath(__file__))
+
+# Paths to the folders that contain source images. Add as many as you like.
+IMAGE_DIRS = [
+    "/mnt/secret-items/sd-outputs/Sorted/Images/Portrait",
+    "/mnt/secret-items/sd-outputs/Sorted/Images/Landscape",
+]
+
+# Backwards-compatibility: first directory
+IMAGE_DIR = IMAGE_DIRS[0]
+
+from typing import Optional
+
+# SQLite database file that stores selections & metadata
+DB_PATH = os.path.join(BASE_DIR, "image_selections.db")
+
+# Default port for the HTTP server
+PORT = 8000
+
+# ---------------------------------------------------------------------------
+# NSFW detection configuration
+# ---------------------------------------------------------------------------
+# List of keywords that, if present in an image's prompt data, should mark the
+# image as NSFW. Feel free to customise this list as appropriate for your own
+# needs.
+NSFW_KEYWORDS = [
+    "nude",
+    "nudity",
+    "porn",
+    "explicit",
+    "sexual",
+    "sex",
+    "boobs",
+    "nipples",
+    "penis",
+    "vagina",
+    "pussy",
+    "cum",
+    "fellatio",
+    "blowjob",
+    "cunnilingus",
+    "paizuri",
+    "rape",
+    "handjob",
+    "lingerie",
+    "bikini",
+    "latex",
+    "saliva",
+    "ass",
+    "condom",
+    ]
+
+# ---------------------------------------------------------------------------
+# Utility helpers
+# ---------------------------------------------------------------------------
+
+def find_image_file(rel_path: str) -> Optional[str]:
+    """Return absolute path to `rel_path` by searching all IMAGE_DIRS.
+
+    Returns None if file is not found in any configured directory.
+    """
+    for base in IMAGE_DIRS:
+        abs_path = os.path.join(base, rel_path)
+        if os.path.exists(abs_path):
+            return abs_path
+    return None