Substack / Newsletter Publication Monitor

Generic RSS 2.0 feed monitor for Substack publications, Medium publications, Ghost blogs, WordPress feeds — anything that exposes RSS. Maps to "newsletter monitoring", "creator economy intel", "influencer publication tracking" briefs.

Built 2026-05-03 as Demo #11. ~10 min from blank file to working demo.

Run

. ~/freelance/.venv/bin/activate
cd ~/freelance/portfolio_demos/substack_publication_monitor
python monitor.py --reset
python monitor.py --once
python monitor.py --simulate-changes 4
python monitor.py --once

Result

• 45 posts tracked across 3 publications ✅
• Idempotent re-run ✅
• 4 simulated description_len changes detected ✅