
Entra security deserves a test. And another one tomorrow.
Turn security requirements into repeatable tests with Maester. Where Entra ID meets security as code.
I write about Entra ID, Maester and security, build tools like KeyMelier, and occasionally convince my smart home to do what I meant.

Turn security requirements into repeatable tests with Maester. Where Entra ID meets security as code.

Authenticity, known vulnerabilities and credential inventory: what a security key can tell you, and what it cannot.

Stop maintaining service IP lists by hand. Learn how Service Route Sync gets gaming and cloud destinations from public feeds, updates existing UniFi routes, and fits into Home Assistant — with a step-by-step setup guide.
Entra ID and Maester are central to my work. I care about protecting identities and making security requirements something we can actually test.
Open repositories, practical tools and small solutions to very real problems.
The sommelier for your security keys. Inspect FIDO2 keys, check attestation and known vulnerabilities, and keep track of keys and registered accounts.

Keep gaming and cloud destinations current in UniFi without maintaining IP lists by hand. Service Route Sync turns public network feeds into previewed, backed-up and verified updates to your existing routes — directly from Home Assistant.
Run the browser login for the Stellantis Vehicles integration on your own hardware. A local helper for Home Assistant.

I’m Sven Frank, Principal Cybersecurity Architect. I work on security architecture, identity and authentication — and how systems hold up when real people use them.
Entra ID and Maester are two of my main interests. In my spare time I build tools like KeyMelier and tinker with the smart home. After years on ioBroker, the house now runs on Home Assistant.
Away from the keyboard? Handball. I write match reports and edit highlight videos for our youth teams — automating the tedious parts where I can.