Data sovereignty starts in the infrastructure: this category gathers our articles on Supabase and PostgreSQL, Keycloak and identity management, self-hosting on Hetzner, Next.js architecture and performance. The common thread: European data sovereignty, transparent operating costs and open-source stacks you own instead of rent.
Keycloak replaces Auth0, Okta & co. as self-hosted identity and access management – without per-user license costs. What the open-source IAM means for decision-makers: substitution, advantages, GDPR, cost.
Matthias Radscheit
Medusa is PostgreSQL-native and fully self-hostable. On Hetzner with Coolify and Docker the commerce stack runs GDPR-compliant in Germany, and it beats SaaS plus transaction fees above a clear revenue point. What the switch really costs, and when it pays off.
Matthias Radscheit
Performance is not frontend cosmetics. It is a business metric. Treat Core Web Vitals as a technical detail and you leave both ranking and revenue on the table. Why Next.js gives you the best starting conditions, and why that alone guarantees nothing.
Matthias Radscheit
Vercel is convenient and sits under US law. Next.js is open source and runs self-hosted on Hetzner with Coolify and Docker, stably, from around 39 euros a month. Why data sovereignty isn't optional for serious organisations but a requirement, and what the switch honestly costs.
Matthias Radscheit
Almost everyone who migrates from Firebase to Supabase underestimates the same block: not auth, not storage, but reshaping denormalised Firestore collections into normalised Postgres tables with RLS. An honest account of where the time and money actually burn — and which apps should not migrate at all.
Matthias Radscheit
No vendor writes the TCO comparison between Supabase Cloud and self-hosted on Hetzner. Past a certain usage profile, self-hosting saves real money — but only if you price your internal operating hours at a real rate. Skip that, and the saving is an accounting illusion.
Matthias Radscheit
For most enterprise use cases, a separate vector database is a problem you buy back into your own stack. Why Supabase with pgvector and Edge Functions is a consolidation decision, not a hype one — and where the honest limit actually sits.
Matthias Radscheit
Comparing Supabase and Firebase on features means comparing the wrong dimension. For European companies under GDPR, this is a sovereignty and risk decision: a US corporation under the CLOUD Act versus open PostgreSQL with a real exit. A practitioner's take.
Matthias Radscheit
Matthias Radscheit
Supabase Row Level Security moves access control out of application code and into the database. The forgotten filter stops being a bug you avoid through discipline and becomes structurally impossible. For multi-tenant SaaS, that is a question of risk and speed that belongs on a decision-maker's desk.
Matthias Radscheit
Matthias Radscheit
For websites that regularly face high visitor traffic, a reliable and performant content platform is essential. In this context, Sanity.io has proven to be particularly powerful.
Matthias Radscheit
Sanity.io is a modern headless CMS that particularly excels in projects with high traffic volumes. In this article, we present successful high-traffic websites that rely on Sanity.io and explain why Sanity.io is the optimal choice for these projects.
Matthias Radscheit
Book a no-obligation call, send us an email, or use the form – we'd love to hear from you.