# Daily Tech Digest — HTML Email with Clickable Links

The digest script at `/root/.hermes/scripts/daily-feed-summary.py` historically sent as **plain text** — markdown links `[title](url)` were not clickable.

## Fix: multipart MIME with HTML conversion

Convert the markdown body to HTML before sending:

```python
import re
html_body = re.sub(r'\[([^\]]+)\]\(([^)]+)\)',
    r'<a href="\2" style="color:#2563eb;">\1</a>', body)
html_body = re.sub(r'\*\*([^*]+)\*\*', r'<strong>\1</strong>', html_body)
html_body = re.sub(r'_([^_]+)_', r'<em>\1</em>', html_body)
html_body = re.sub(r'^## (.+)$', r'<h2>\1</h2>', html_body, flags=re.MULTILINE)
html_body = re.sub(r'^# (.+)$', r'<h1>\1</h1>', html_body, flags=re.MULTILINE)
html_body = re.sub(r'^---+$', r'<hr>', html_body, flags=re.MULTILINE)
```

Send as `MIMEMultipart('alternative')` — attach both the original plain text AND the converted HTML. Email clients render the HTML version if supported, fall back to plain text otherwise.

```python
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart

msg = MIMEMultipart('alternative')
msg.attach(MIMEText(body, 'plain', 'utf-8'))
msg.attach(MIMEText(html, 'html', 'utf-8'))
```

## Permanence

This only applies to scripts that generate markdown-rich content for email. Simple notification emails (cron alerts, bounce checks, inbox summaries) don't need HTML — plain text is fine and faster.
