I work in cybersecurity and build side projects to explore things that interest me. Each project here comes with the full write-up: what I built, how it works, what I'd do differently, and how to replicate it.
A Cloudflare Worker that watches the CISA Known Exploited Vulnerabilities catalog for new additions, cross-references each match against NVD for a CVSS score, and fires an immediate Telegram alert when a vendor on your watchlist hits KEV + CRITICAL simultaneously.
A Cloudflare Worker that polls the NVD API daily for new HIGH and CRITICAL CVEs across 20 watched security products — firewalls, VPNs, IAM, SIEMs, container runtimes — and fires structured alerts to Telegram and Slack the moment they drop.
A framework that turns any YAML checklist into a Slack approval flow. One click approves a PR, posts a comment, and fires a GitHub Actions workflow — backed by an AWS Lambda handler with HMAC signature verification.
How I connected OpenClaw + Cloudflare Moltworker to monitor EDGAR and deliver filing alerts to my phone via Telegram — without writing a single line of monitoring code.
I work in cybersecurity and build side projects in my spare time. These are practical tools I actually use — documented thoroughly enough that you could build them too.
Everything here is open source and comes with a full step-by-step write-up, architecture diagrams, and cost breakdowns.