diff --git a/bash-scripts/system-clean.sh b/bash-scripts/system-clean.sh
new file mode 100755
index 0000000..e5d53f0
--- /dev/null
+++ b/bash-scripts/system-clean.sh
@@ -0,0 +1,97 @@
+#!/bin/bash
+
+# ============================
+# Colours
+# ============================
+RED="\e[31m"
+GREEN="\e[32m"
+YELLOW="\e[33m"
+BLUE="\e[34m"
+MAGENTA="\e[35m"
+CYAN="\e[36m"
+BOLD="\e[1m"
+RESET="\e[0m"
+
+line() {
+  echo -e "${CYAN}────────────────────────────────────────────────────────${RESET}"
+}
+
+# ============================
+# DATE HEADER
+# ============================
+echo -e "${BOLD}${MAGENTA}=== System Clean Run: $(date '+%Y-%m-%d %H:%M:%S') ===${RESET}"
+line
+
+echo -e "${BOLD}${GREEN}=== Ubuntu System Cleanup ===${RESET}"
+line
+
+# ============================
+# 1. Clean APT cache
+# ============================
+echo -y >/dev/null 2>&1
+sudo apt autoclean -y >/dev/null 2>&1
+sudo apt clean -y >/dev/null 2>&1
+echo -e "${GREEN}✓ APT cache cleaned.${RESET}"
+line
+
+# ============================
+# 2. Journal logs cleanup
+# ============================
+echo -e "${BOLD}${BLUE}[2/8] Cleaning journal logs (keeping 100MB)...${RESET}"
+echo -e "${CYAN}Current journal disk usage:${RESET}"
+journalctl --disk-usage || true
+sudo journalctl --vacuum-size=100M >/dev/null 2>&1
+echo -e "${GREEN}✓ Journal logs vacuumed.${RESET}"
+line
+
+# ============================
+# Remove old logs
+# ============================
+echo -e "${BOLD}${BLUE}[3/8] Removing rotated logs...${RESET}"
+sudo find /var/log -type f -name "*.gz" -delete
+sudo find /var/log -type f -name "*.1" -delete
+echo -e "${GREEN}✓ Old log archives removed.${RESET}"
+line
+
+# ============================
+# 4. Clear /tmp and /var/tmp
+# ============================
+echo -e "${BOLD}${BLUE}[4/8] Clearing temp directories...${RESET}"
+sudo rm -rf /tmp/* /var/tmp/*
+echo -e "${GREEN}✓ Temporary files cleared.${RESET}"
+line
+
+# ============================
+# 5. Free RAM (cache)
+# ============================
+echo -e "${BOLD}${BLUE}[5/8] Dropping filesystem caches (safe)...${RESET}"
+sync
+echo 3 | sudo tee /proc/sys/vm/drop_caches >/dev/null
+echo -e "${GREEN}✓ RAM caches dropped.${RESET}"
+line
+
+# ============================
+# 6. Reset failed services
+# ============================
+echo -e "${BOLD}${BLUE}[6/8] Resetting failed systemd units...${RESET}"
+sudo systemctl reset-failed >/dev/null 2>&1
+echo -e "${GREEN}✓ Failed units reset.${RESET}"
+line
+
+# ============================
+# 7. Disk usage snapshot
+# ============================
+echo -e "${BOLD}${BLUE}[7/8] Largest directories under / ...${RESET}"
+du -h --max-depth=1 / 2>/dev/null | sort -hr | head -n 10
+echo -e "${GREEN}✓ Disk usage shown.${RESET}"
+line
+
+# ============================
+# 8. CPU usage snapshot
+# ============================
+echo -e "${BOLD}${BLUE}[8/8] Top CPU-consuming processes...${RESET}"
+ps -eo pid,ppid,cmd,%mem,%cpu --sort=-%cpu | head
+echo -e "${GREEN}✓ CPU snapshot shown.${RESET}"
+line
+
+echo -e "${BOLD}${GREEN}=== Cleanup Complete! ===${RESET}"
diff --git a/bash-scripts/system-clean.sh~ b/bash-scripts/system-clean.sh~
new file mode 100644
index 0000000..e69de29
diff --git a/cleaners/clean-halifax-actual.py b/cleaners/clean-halifax-actual.py
old mode 100644
new mode 100755
diff --git a/cleaners/clean-halifax-actual.py~ b/cleaners/clean-halifax-actual.py~
old mode 100644
new mode 100755
diff --git a/cleaners/nationwide-cleaner.py b/cleaners/nationwide-cleaner.py
old mode 100644
new mode 100755
diff --git a/cleaners/nationwide-cleaner.py~ b/cleaners/nationwide-cleaner.py~
old mode 100644
new mode 100755
diff --git a/cookbook_org_sync.py b/cookbook_org_sync.py
new file mode 100644
index 0000000..802352e
--- /dev/null
+++ b/cookbook_org_sync.py
@@ -0,0 +1,377 @@
+#!/usr/bin/env python3
+
+import json
+import os
+import sys
+import tempfile
+import time
+from datetime import datetime
+from pathlib import Path
+from urllib.request import Request, urlopen
+from urllib.error import URLError
+import base64
+
+docstring = """
+This script fetches recipes from the Nextcloud Cookbook API, merges them
+with any existing notes already written in the output Org file (cook dates,
+tips, etc.), and regenerates the file while preserving the org-roam header
+and all hand-written notes.
+
+It runs on a cron schedule (e.g. nightly) and emits a JSON summary line on
+stdout on success, or on stderr on failure, matching the same format used by
+calibre_org_sync.
+
+JSON summary format:
+{"script": "cookbook_org_sync", "status": "success", "duration_ms": 42,
+ "output": "/home/zaine/master-folder/org_files/org_roam/20260307233451-recipes_cookbook.org",
+ "timestamp": "2026-03-08T00:00:02.123456"}
+"""
+
+# ─────────────────────────────────────────────────────────────
+# Configuration  –  edit these values
+# ─────────────────────────────────────────────────────────────
+
+NEXTCLOUD_BASE_URL = "https://nextcloud.zainezq.com"
+NEXTCLOUD_USERNAME = os.environ.get("NEXTCLOUD_USER", "zaine")   # or hard-code
+NEXTCLOUD_PASSWORD = os.environ.get("NEXTCLOUD_PASS", "Shakkal123!")   # or hard-code
+
+RECIPES_ENDPOINT = "/apps/cookbook/api/v1/recipes"
+
+OUTPUT_ORG = Path(
+    "/home/zaine/master-folder/org_files/org_roam/"
+    "20260307233451-recipes_cookbook.org"
+)
+
+# ─────────────────────────────────────────────────────────────
+# API fetch
+# ─────────────────────────────────────────────────────────────
+
+def fetch_recipes():
+    url = NEXTCLOUD_BASE_URL.rstrip("/") + RECIPES_ENDPOINT
+
+    # Support either a pre-encoded token (NEXTCLOUD_TOKEN) or user:pass
+    token = os.environ.get("NEXTCLOUD_TOKEN", "")
+    if token:
+        auth_header = f"Basic {token}"
+    else:
+        credentials = base64.b64encode(
+            f"{NEXTCLOUD_USERNAME}:{NEXTCLOUD_PASSWORD}".encode()
+        ).decode()
+        auth_header = f"Basic {credentials}"
+
+    headers = {
+        "Authorization": auth_header,
+        "Accept": "application/json",
+        "OCS-APIRequest": "true",
+        "User-Agent": (
+            "Mozilla/5.0 (X11; Linux x86_64) "
+            "AppleWebKit/537.36 (KHTML, like Gecko) "
+            "Chrome/122.0.0.0 Safari/537.36"
+        ),
+    }
+
+    if os.environ.get("COOKBOOK_DEBUG"):
+        print(f"[debug] GET {url}", file=sys.stderr)
+        print(f"[debug] Headers: { {k: v for k, v in headers.items()} }", file=sys.stderr)
+
+    req = Request(url, headers=headers)
+
+    try:
+        with urlopen(req, timeout=30) as resp:
+            raw = resp.read()
+    except URLError as exc:
+        # Capture HTTP error body for easier debugging
+        body = ""
+        if hasattr(exc, "read"):
+            try:
+                body = exc.read().decode(errors="replace")
+            except Exception:
+                pass
+        raise RuntimeError(
+            f"HTTP error from Nextcloud API: {exc} — body: {body!r}"
+        ) from exc
+
+    try:
+        data = json.loads(raw)
+    except json.JSONDecodeError as exc:
+        raise RuntimeError(f"Invalid JSON from API: {exc}") from exc
+
+    if not isinstance(data, list):
+        raise RuntimeError(f"Unexpected API response shape: {type(data)}")
+
+    return data
+
+
+# ─────────────────────────────────────────────────────────────
+# Organise recipes by category
+# ─────────────────────────────────────────────────────────────
+
+def group_by_category(recipes):
+    """Returns {category: [recipe, ...]} sorted alphabetically."""
+    grouped = {}
+    for recipe in recipes:
+        cat = (recipe.get("category") or "Uncategorised").strip()
+        grouped.setdefault(cat, []).append(recipe)
+
+    for cat in grouped:
+        grouped[cat].sort(key=lambda r: r.get("name", "").lower())
+
+    return grouped
+
+
+# ─────────────────────────────────────────────────────────────
+# Preserve existing hand-written notes from the current file
+# ─────────────────────────────────────────────────────────────
+
+def parse_existing_notes(path):
+    """
+    Walks the current org file and collects the PROPERTIES drawer content
+    for each recipe heading (matched by RECIPE_ID property).
+
+    Returns {recipe_id_str: {"cooked_dates": [...], "tips": str, "extra_props": [...]}}
+    """
+    if not path.exists():
+        return {}
+
+    lines = path.read_text(encoding="utf-8").splitlines()
+    notes = {}
+
+    i = 0
+    while i < len(lines):
+        line = lines[i]
+
+        # Detect a level-2 recipe heading  "** Some Title :keywords:"
+        if line.startswith("** "):
+            recipe_id = None
+            cooked_dates = []
+            tips_lines = []
+            extra_props = []
+
+            # Look for the PROPERTIES drawer immediately following
+            j = i + 1
+            in_props = False
+            while j < len(lines):
+                l = lines[j].strip()
+                if l == ":PROPERTIES:":
+                    in_props = True
+                    j += 1
+                    continue
+                if in_props:
+                    if l == ":END:":
+                        in_props = False
+                        j += 1
+                        break
+                    if l.startswith(":RECIPE_ID:"):
+                        recipe_id = l.split(":", 2)[2].strip()
+                    elif l.startswith(":COOKED:"):
+                        # may be repeated
+                        val = l.split(":", 2)[2].strip()
+                        if val:
+                            cooked_dates.append(val)
+                    elif l.startswith(":TIPS:"):
+                        tips_lines.append(l.split(":", 2)[2].strip())
+                    elif l and not l.startswith(":CATEGORY:") \
+                            and not l.startswith(":KEYWORDS:") \
+                            and not l.startswith(":CREATED:") \
+                            and not l.startswith(":MODIFIED:") \
+                            and not l.startswith(":URL:"):
+                        # Preserve unknown/custom properties
+                        extra_props.append(l)
+                    j += 1
+                    continue
+                break  # stop if we hit something that is not the drawer
+
+            if recipe_id:
+                notes[recipe_id] = {
+                    "cooked_dates": cooked_dates,
+                    "tips": " ".join(tips_lines),
+                    "extra_props": extra_props,
+                }
+
+        i += 1
+
+    return notes
+
+
+# ─────────────────────────────────────────────────────────────
+# Org header handling
+# ─────────────────────────────────────────────────────────────
+
+def read_org_roam_header(path):
+    """
+    Returns the org-roam PROPERTIES block (up to and including :END:).
+    Raises RuntimeError if the file exists but has no such block.
+    Returns None if the file does not exist.
+    """
+    if not path.exists():
+        return None
+
+    lines = path.read_text(encoding="utf-8").splitlines()
+    for i, line in enumerate(lines):
+        if line.strip() == ":END:":
+            return "\n".join(lines[: i + 1]).rstrip()
+
+    raise RuntimeError("No org-roam PROPERTIES drawer found in output file")
+
+
+# ─────────────────────────────────────────────────────────────
+# Org body generation
+# ─────────────────────────────────────────────────────────────
+
+def emit_org_body(grouped, existing_notes):
+    lines = []
+
+    lines.append("#+title: Recipes Cookbook")
+    lines.append("#+AUTHOR: Auto-generated")
+    lines.append("#+filetags: :recipes:cooking:org:index:")
+    lines.append("#+STARTUP: content")
+    lines.append(f"#+PROPERTY: GENERATED_AT {datetime.now().isoformat()}")
+    lines.append("")
+    lines.append(
+        "# How to add notes: under any recipe heading, add :COOKED: <date> "
+        "to record when you made it, and :TIPS: your tip text to add notes."
+    )
+    lines.append(
+        "# Multiple :COOKED: lines are supported. "
+        "These are preserved across regenerations."
+    )
+    lines.append("")
+
+    for category in sorted(grouped.keys(), key=str.lower):
+        lines.append(f"* {category}")
+        lines.append("")
+
+        for recipe in grouped[category]:
+            rid = str(recipe.get("recipe_id") or recipe.get("id", ""))
+            name = recipe.get("name", "Unnamed Recipe")
+            keywords_raw = recipe.get("keywords", "") or ""
+            keywords = [k.strip() for k in keywords_raw.split(",") if k.strip()]
+            date_created = recipe.get("dateCreated", "")
+            date_modified = recipe.get("dateModified", "")
+            recipe_url = (
+                f"{NEXTCLOUD_BASE_URL.rstrip('/')}"
+                f"/apps/cookbook/webapp/recipes/{rid}"
+            )
+
+            # org tag string from keywords  (spaces → underscores)
+            tag_str = ":".join(k.replace(" ", "_") for k in keywords)
+            tag_block = f":{tag_str}:" if tag_str else ""
+
+            lines.append(f"** {name} {tag_block}".rstrip())
+            lines.append(":PROPERTIES:")
+            lines.append(f":RECIPE_ID: {rid}")
+            lines.append(f":CATEGORY: {category}")
+            if keywords:
+                lines.append(f":KEYWORDS: {keywords_raw}")
+            lines.append(f":CREATED:  {date_created}")
+            lines.append(f":MODIFIED: {date_modified}")
+            lines.append(f":URL:      {recipe_url}")
+
+            # Re-inject preserved notes
+            note = existing_notes.get(rid, {})
+            for cd in note.get("cooked_dates", []):
+                lines.append(f":COOKED:   {cd}")
+            if note.get("tips"):
+                lines.append(f":TIPS:     {note['tips']}")
+            for ep in note.get("extra_props", []):
+                lines.append(ep)
+
+            lines.append(":END:")
+
+            # ── Visible metadata (exported to HTML) ──────────────
+            cooked = note.get("cooked_dates", [])
+            cooked_str = ", ".join(cooked) if cooked else "/not yet made/"
+
+            lines.append("#+ATTR_HTML: :class recipe-meta")
+            lines.append("| | |")
+            lines.append("|---|---|")
+            lines.append(f"| *Category* | {category} |")
+            if keywords:
+                lines.append(f"| *Keywords* | {keywords_raw} |")
+            lines.append(f"| *Created*  | {date_created[:10] if date_created else '—'} |")
+            lines.append(f"| *Modified* | {date_modified[:10] if date_modified else '—'} |")
+            lines.append(f"| *Cooked*   | {cooked_str} |")
+            lines.append(f"| *Link*     | [[{recipe_url}][Open in Nextcloud]] |")
+
+            if note.get("tips"):
+                lines.append("")
+                lines.append(f"*Tips:* {note['tips']}")
+
+            lines.append("")
+
+    return "\n".join(lines)
+
+
+# ─────────────────────────────────────────────────────────────
+# Atomic write
+# ─────────────────────────────────────────────────────────────
+
+def atomic_write(path, content):
+    path.parent.mkdir(parents=True, exist_ok=True)
+    with tempfile.NamedTemporaryFile(
+        "w", delete=False, dir=str(path.parent), encoding="utf-8"
+    ) as tmp:
+        tmp.write(content)
+        temp_name = tmp.name
+    os.replace(temp_name, path)
+
+
+# ─────────────────────────────────────────────────────────────
+# Main
+# ─────────────────────────────────────────────────────────────
+
+def main():
+    if not NEXTCLOUD_USERNAME or not NEXTCLOUD_PASSWORD:
+        raise RuntimeError(
+            "Nextcloud credentials not set. "
+            "Export NEXTCLOUD_USER and NEXTCLOUD_PASS environment variables."
+        )
+
+    # 1. Read existing org-roam header (must already exist)
+    header = read_org_roam_header(OUTPUT_ORG)
+    if header is None:
+        raise RuntimeError(
+            f"{OUTPUT_ORG} does not exist. "
+            "Create it first with the org-roam ID block."
+        )
+
+    # 2. Scrape any hand-written notes from the current file
+    existing_notes = parse_existing_notes(OUTPUT_ORG)
+
+    # 3. Fetch recipes from Nextcloud
+    recipes = fetch_recipes()
+
+    # 4. Group by category
+    grouped = group_by_category(recipes)
+
+    # 5. Generate new body and combine with header
+    body = emit_org_body(grouped, existing_notes)
+    content = header + "\n\n" + body
+
+    # 6. Write atomically
+    atomic_write(OUTPUT_ORG, content)
+
+
+if __name__ == "__main__":
+    start = time.time()
+    try:
+        main()
+        duration_ms = int((time.time() - start) * 1000)
+        print(json.dumps({
+            "script": "cookbook_org_sync",
+            "status": "success",
+            "duration_ms": duration_ms,
+            "output": str(OUTPUT_ORG),
+            "timestamp": datetime.now().isoformat(),
+        }))
+        sys.exit(0)
+
+    except Exception as exc:
+        duration_ms = int((time.time() - start) * 1000)
+        print(json.dumps({
+            "script": "cookbook_org_sync",
+            "status": "failure",
+            "duration_ms": duration_ms,
+            "error": str(exc),
+        }), file=sys.stderr)
+        sys.exit(1)
diff --git a/cookbook_org_sync.py~ b/cookbook_org_sync.py~
new file mode 100644
index 0000000..7816dc5
--- /dev/null
+++ b/cookbook_org_sync.py~
@@ -0,0 +1,338 @@
+#!/usr/bin/env python3
+
+import json
+import os
+import sys
+import tempfile
+import time
+from datetime import datetime
+from pathlib import Path
+from urllib.request import Request, urlopen
+from urllib.error import URLError
+import base64
+
+docstring = """
+This script fetches recipes from the Nextcloud Cookbook API, merges them
+with any existing notes already written in the output Org file (cook dates,
+tips, etc.), and regenerates the file while preserving the org-roam header
+and all hand-written notes.
+
+It runs on a cron schedule (e.g. nightly) and emits a JSON summary line on
+stdout on success, or on stderr on failure, matching the same format used by
+calibre_org_sync.
+
+JSON summary format:
+{"script": "cookbook_org_sync", "status": "success", "duration_ms": 42,
+ "output": "/home/zaine/master-folder/org_files/org_roam/20260307233451-recipes_cookbook.org",
+ "timestamp": "2026-03-08T00:00:02.123456"}
+"""
+
+# ─────────────────────────────────────────────────────────────
+# Configuration  –  edit these values
+# ─────────────────────────────────────────────────────────────
+
+NEXTCLOUD_BASE_URL = "https://nextcloud.zainezq.com"
+NEXTCLOUD_USERNAME = os.environ.get("NEXTCLOUD_USER", "")   # or hard-code
+NEXTCLOUD_PASSWORD = os.environ.get("NEXTCLOUD_PASS", "")   # or hard-code
+
+RECIPES_ENDPOINT = "/apps/cookbook/api/v1/recipes"
+
+OUTPUT_ORG = Path(
+    "/home/zaine/master-folder/org_files/org_roam/"
+    "20260307233451-recipes_cookbook.org"
+)
+
+# ─────────────────────────────────────────────────────────────
+# API fetch
+# ─────────────────────────────────────────────────────────────
+
+def fetch_recipes():
+    url = NEXTCLOUD_BASE_URL.rstrip("/") + RECIPES_ENDPOINT
+    credentials = base64.b64encode(
+        f"{NEXTCLOUD_USERNAME}:{NEXTCLOUD_PASSWORD}".encode()
+    ).decode()
+
+    req = Request(url, headers={
+        "Authorization": f"Basic {credentials}",
+        "Accept": "application/json",
+        "OCS-APIRequest": "true",
+    })
+
+    try:
+        with urlopen(req, timeout=30) as resp:
+            raw = resp.read()
+    except URLError as exc:
+        raise RuntimeError(f"Failed to reach Nextcloud API: {exc}") from exc
+
+    try:
+        data = json.loads(raw)
+    except json.JSONDecodeError as exc:
+        raise RuntimeError(f"Invalid JSON from API: {exc}") from exc
+
+    if not isinstance(data, list):
+        raise RuntimeError(f"Unexpected API response shape: {type(data)}")
+
+    return data
+
+
+# ─────────────────────────────────────────────────────────────
+# Organise recipes by category
+# ─────────────────────────────────────────────────────────────
+
+def group_by_category(recipes):
+    """Returns {category: [recipe, ...]} sorted alphabetically."""
+    grouped = {}
+    for recipe in recipes:
+        cat = (recipe.get("category") or "Uncategorised").strip()
+        grouped.setdefault(cat, []).append(recipe)
+
+    for cat in grouped:
+        grouped[cat].sort(key=lambda r: r.get("name", "").lower())
+
+    return grouped
+
+
+# ─────────────────────────────────────────────────────────────
+# Preserve existing hand-written notes from the current file
+# ─────────────────────────────────────────────────────────────
+
+def parse_existing_notes(path):
+    """
+    Walks the current org file and collects the PROPERTIES drawer content
+    for each recipe heading (matched by RECIPE_ID property).
+
+    Returns {recipe_id_str: {"cooked_dates": [...], "tips": str, "extra_props": [...]}}
+    """
+    if not path.exists():
+        return {}
+
+    lines = path.read_text(encoding="utf-8").splitlines()
+    notes = {}
+
+    i = 0
+    while i < len(lines):
+        line = lines[i]
+
+        # Detect a level-2 recipe heading  "** Some Title :keywords:"
+        if line.startswith("** "):
+            recipe_id = None
+            cooked_dates = []
+            tips_lines = []
+            extra_props = []
+
+            # Look for the PROPERTIES drawer immediately following
+            j = i + 1
+            in_props = False
+            while j < len(lines):
+                l = lines[j].strip()
+                if l == ":PROPERTIES:":
+                    in_props = True
+                    j += 1
+                    continue
+                if in_props:
+                    if l == ":END:":
+                        in_props = False
+                        j += 1
+                        break
+                    if l.startswith(":RECIPE_ID:"):
+                        recipe_id = l.split(":", 2)[2].strip()
+                    elif l.startswith(":COOKED:"):
+                        # may be repeated
+                        val = l.split(":", 2)[2].strip()
+                        if val:
+                            cooked_dates.append(val)
+                    elif l.startswith(":TIPS:"):
+                        tips_lines.append(l.split(":", 2)[2].strip())
+                    elif l and not l.startswith(":CATEGORY:") \
+                            and not l.startswith(":KEYWORDS:") \
+                            and not l.startswith(":CREATED:") \
+                            and not l.startswith(":MODIFIED:") \
+                            and not l.startswith(":URL:"):
+                        # Preserve unknown/custom properties
+                        extra_props.append(l)
+                    j += 1
+                    continue
+                break  # stop if we hit something that is not the drawer
+
+            if recipe_id:
+                notes[recipe_id] = {
+                    "cooked_dates": cooked_dates,
+                    "tips": " ".join(tips_lines),
+                    "extra_props": extra_props,
+                }
+
+        i += 1
+
+    return notes
+
+
+# ─────────────────────────────────────────────────────────────
+# Org header handling
+# ─────────────────────────────────────────────────────────────
+
+def read_org_roam_header(path):
+    """
+    Returns the org-roam PROPERTIES block (up to and including :END:).
+    Raises RuntimeError if the file exists but has no such block.
+    Returns None if the file does not exist.
+    """
+    if not path.exists():
+        return None
+
+    lines = path.read_text(encoding="utf-8").splitlines()
+    for i, line in enumerate(lines):
+        if line.strip() == ":END:":
+            return "\n".join(lines[: i + 1]).rstrip()
+
+    raise RuntimeError("No org-roam PROPERTIES drawer found in output file")
+
+
+# ─────────────────────────────────────────────────────────────
+# Org body generation
+# ─────────────────────────────────────────────────────────────
+
+def emit_org_body(grouped, existing_notes):
+    lines = []
+
+    lines.append("#+title: Recipes Cookbook")
+    lines.append("#+AUTHOR: Auto-generated")
+    lines.append("#+filetags: :recipes:cooking:org:index:")
+    lines.append("#+STARTUP: content")
+    lines.append(f"#+PROPERTY: GENERATED_AT {datetime.now().isoformat()}")
+    lines.append("")
+    lines.append(
+        "# How to add notes: under any recipe heading, add :COOKED: <date> "
+        "to record when you made it, and :TIPS: your tip text to add notes."
+    )
+    lines.append(
+        "# Multiple :COOKED: lines are supported. "
+        "These are preserved across regenerations."
+    )
+    lines.append("")
+
+    for category in sorted(grouped.keys(), key=str.lower):
+        lines.append(f"* {category}")
+        lines.append("")
+
+        for recipe in grouped[category]:
+            rid = str(recipe.get("recipe_id") or recipe.get("id", ""))
+            name = recipe.get("name", "Unnamed Recipe")
+            keywords_raw = recipe.get("keywords", "") or ""
+            keywords = [k.strip() for k in keywords_raw.split(",") if k.strip()]
+            date_created = recipe.get("dateCreated", "")
+            date_modified = recipe.get("dateModified", "")
+            recipe_url = (
+                f"{NEXTCLOUD_BASE_URL.rstrip('/')}"
+                f"/apps/cookbook/webapp/recipes/{rid}"
+            )
+
+            # org tag string from keywords  (spaces → underscores)
+            tag_str = ":".join(k.replace(" ", "_") for k in keywords)
+            tag_block = f":{tag_str}:" if tag_str else ""
+
+            lines.append(f"** {name} {tag_block}".rstrip())
+            lines.append(":PROPERTIES:")
+            lines.append(f":RECIPE_ID: {rid}")
+            lines.append(f":CATEGORY: {category}")
+            if keywords:
+                lines.append(f":KEYWORDS: {keywords_raw}")
+            lines.append(f":CREATED:  {date_created}")
+            lines.append(f":MODIFIED: {date_modified}")
+            lines.append(f":URL:      {recipe_url}")
+
+            # Re-inject preserved notes
+            note = existing_notes.get(rid, {})
+            for cd in note.get("cooked_dates", []):
+                lines.append(f":COOKED:   {cd}")
+            if note.get("tips"):
+                lines.append(f":TIPS:     {note['tips']}")
+            for ep in note.get("extra_props", []):
+                lines.append(ep)
+
+            lines.append(":END:")
+
+            # Placeholder reminder if never cooked
+            if not note.get("cooked_dates"):
+                lines.append(
+                    "# Add  :COOKED: <yyyy-mm-dd>  in the drawer above "
+                    "when you first make this."
+                )
+
+            lines.append("")
+
+    return "\n".join(lines)
+
+
+# ─────────────────────────────────────────────────────────────
+# Atomic write
+# ─────────────────────────────────────────────────────────────
+
+def atomic_write(path, content):
+    path.parent.mkdir(parents=True, exist_ok=True)
+    with tempfile.NamedTemporaryFile(
+        "w", delete=False, dir=str(path.parent), encoding="utf-8"
+    ) as tmp:
+        tmp.write(content)
+        temp_name = tmp.name
+    os.replace(temp_name, path)
+
+
+# ─────────────────────────────────────────────────────────────
+# Main
+# ─────────────────────────────────────────────────────────────
+
+def main():
+    if not NEXTCLOUD_USERNAME or not NEXTCLOUD_PASSWORD:
+        raise RuntimeError(
+            "Nextcloud credentials not set. "
+            "Export NEXTCLOUD_USER and NEXTCLOUD_PASS environment variables."
+        )
+
+    # 1. Read existing org-roam header (must already exist)
+    header = read_org_roam_header(OUTPUT_ORG)
+    if header is None:
+        raise RuntimeError(
+            f"{OUTPUT_ORG} does not exist. "
+            "Create it first with the org-roam ID block."
+        )
+
+    # 2. Scrape any hand-written notes from the current file
+    existing_notes = parse_existing_notes(OUTPUT_ORG)
+
+    # 3. Fetch recipes from Nextcloud
+    recipes = fetch_recipes()
+
+    # 4. Group by category
+    grouped = group_by_category(recipes)
+
+    # 5. Generate new body and combine with header
+    body = emit_org_body(grouped, existing_notes)
+    content = header + "\n\n" + body
+
+    # 6. Write atomically
+    atomic_write(OUTPUT_ORG, content)
+
+
+if __name__ == "__main__":
+    start = time.time()
+    try:
+        main()
+        duration_ms = int((time.time() - start) * 1000)
+        print(json.dumps({
+            "script": "cookbook_org_sync",
+            "status": "success",
+            "duration_ms": duration_ms,
+            "output": str(OUTPUT_ORG),
+            "timestamp": datetime.now().isoformat(),
+        }))
+        sys.exit(0)
+
+    except Exception as exc:
+        duration_ms = int((time.time() - start) * 1000)
+        print(json.dumps({
+            "script": "cookbook_org_sync",
+            "status": "failure",
+            "duration_ms": duration_ms,
+            "error": str(exc),
+        }), file=sys.stderr)
+        sys.exit(1)
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