Woohoo! Managed to get my Reflection.app export into Diarium via Journey import with the following Python code. (Note, I am no longer a coder so used AI heavily to help me create this - given with no warranty or support 🤣!)

`
import json
import uuid
import os
import re
import html
import unicodedata
import shutil
from datetime import datetime

============================

CONFIGURATION (ADD YOUR REAL PATHS)

============================

HOLSTEE_JSON = r"C:...\journal_export\entries.json"
OUTPUT_FOLDER = r"C:...\journal_export\reflection_output"
PHOTOS_FOLDER = r"C:...\journal_export\images"

============================

UTILITIES

============================

def iso_to_unix_ms(iso_str):
"""Convert ISO8601 date to Unix timestamp in milliseconds."""
return int(datetime.fromisoformat(iso_str.replace("Z", "+00:00")).timestamp() * 1000)

def html_to_markdown(html_text):
"""Convert Reflection HTML into clean Markdown."""
if not html_text:
return ""

text = html.unescape(html_text)

# Paragraphs <p> → blank lines
text = re.sub(r"</p>\s*<p>", "\n\n\n", text)
text = re.sub(r"<p>|</p>", "", text)

# Line breaks <br> → newline
text = re.sub(r"<br\s*/?>", "\n", text)

# Remove any remaining HTML tags
text = re.sub(r"<[^>]+>", "", text)

# Remove zero-width and control characters
text = re.sub(r"[\u200B-\u200F\u202A-\u202E]", "", text)

# Normalise Unicode
text = unicodedata.normalize("NFC", text)

# Replace non-breaking spaces
text = text.replace("\u00A0", " ")

# Clean whitespace
text = re.sub(r"\s+\n", "\n", text)
text = re.sub(r"\n\s+", "\n", text)
text = re.sub(r"\n{3,}", "\n\n\n", text)   # preserve triple newlines
text = text.strip()

return text

def parse_images_field(images_field):
"""
Reflection stores 'images' as a JSON string, e.g.:

"images":"{\"bc2c7b83-ba46-43d3-b25e-a4dfe7581426\":{...}}"

Return a list of image IDs (keys).
"""
if not images_field:
    return []

# Already a dict?
if isinstance(images_field, dict):
    return list(images_field.keys())

# JSON string?
if isinstance(images_field, str):
    images_field = images_field.strip()
    if not images_field or images_field == "{}":
        return []
    try:
        data = json.loads(images_field)
        return list(data.keys())
    except json.JSONDecodeError:
        return []

return []

def find_photos_for_entry(entry_key, images_field):
"""Match Reflection image IDs to local photo filenames (entryKey-imageId pattern)."""
matched = []

image_ids = parse_images_field(images_field)
if not image_ids:
    return matched

local_files = os.listdir(PHOTOS_FOLDER)

cleaned_files = []
for f in local_files:
    f_clean = f.split("#")[0].split("?")[0].strip()
    cleaned_files.append((f, f_clean))

for img_id in image_ids:
    prefix = f"{entry_key}-{img_id}"
    for original, cleaned in cleaned_files:
        if cleaned.startswith(prefix):
            matched.append(original)

return matched

============================

CONVERSION LOGIC

============================

def convert_entry(entry):
"""Convert a single Reflection entry into a Journey-compatible JSON object."""

# Timestamp
date_journal = iso_to_unix_ms(entry["date"])

# Diarium-style filename format: <timestamp>-<16hex>
unique_hex = uuid.uuid4().hex[:16]
entry_id = f"{date_journal}-{unique_hex}"

# Convert HTML → Markdown
md_text = html_to_markdown(entry["text"])

# Photos (using images field from export)
photos = find_photos_for_entry(entry["key"], entry.get("images", ""))

# Tags + add "Reflection"
tags = entry.get("tags", [])
if "(Reflection)" not in tags:
    tags.append("(Reflection)")

converted = {
    "id": entry_id,
    "date_journal": date_journal,
    "text": md_text,
    "tags": tags,
    "photos": photos,
}

return entry_id, converted, photos

============================

MAIN PROCESS

============================

def main():
os.makedirs(OUTPUT_FOLDER, exist_ok=True)

with open(HOLSTEE_JSON, "r", encoding="utf-8") as f:
    holstee_entries = json.load(f)

# Convert x entries at a time (if you want)
test_slice = holstee_entries[0:]

for i, entry in enumerate(test_slice, start=1):
    entry_id, converted, photos = convert_entry(entry)

    out_path = os.path.join(OUTPUT_FOLDER, f"{entry_id}.json")
    with open(out_path, "w", encoding="utf-8") as f:
        json.dump(converted, f, indent=2, ensure_ascii=False)

    # Copy photos into the same folder
    for photo in photos:
        src = os.path.join(PHOTOS_FOLDER, photo)
        dst = os.path.join(OUTPUT_FOLDER, photo)
        if os.path.exists(src):
            shutil.copy2(src, dst)

    print(f"Converted entry {i}: {entry_id} (photos: {photos})")

print("Test run complete.")

if name == "main":
main()
`