Maester beyond the first scan: making Entra security repeatable
Turn Entra ID security requirements into tests you can review, run and act on. A practical approach to custom checks, OIDC and operating across tenants.
Sven FrankRead article ↗SECURITY · OPEN SOURCE · A LITTLE CURIOSITY
I’m Sven Frank.
Security architect.
Open-source builder.
Curious by default.
I write about Entra ID, Maester and security, build tools like KeyMelier, and occasionally convince my smart home to do what I meant.
01 / From the blog
Featured writing.
Things worth sharing.
Sven FrankRead article ↗
One security key. Plenty of questions. Meet KeyMelier.
Authenticity, known vulnerabilities and credential inventory: what a security key can tell you, and what it cannot.
Sven FrankRead article ↗
Service Route Sync: keep UniFi destinations up to date.
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.
Sven FrankRead article ↗02 / What I work on
Identity first.
Trust, tested.
Entra ID and Maester are central to my work. I care about protecting identities and making security requirements something we can actually test.
03 / Things I build
From “what if”
to something useful.
Open repositories, practical tools and small solutions to very real problems.
Featured Project / Open SourceKeyMelier.
The sommelier for your security keys. Inspect FIDO2 keys, check attestation and known vulnerabilities, and keep track of keys and registered accounts.
Early Community Release
Service Route Sync
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. Available in the default HACS catalogue.
Release Candidate
Stellantis Login Worker
Run the browser login for the Stellantis Vehicles integration on your own hardware. A local helper for Home Assistant.
Built to be used. Open to getting better.All repositories ↗
04 / Beyond the keyboard
Security is my work. Curiosity is the constant.
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.
Identity & AuthenticationSecurity as CodeHome Assistant
More about me ↗