Boutique Software Studio · Berlin

Custom software with technical excellence.

150+

Completed projects

Years of experience

Senior‑level team members

We build web applications, B2B websites, Agentic AI and big-data solutions – from a senior team in Berlin.

May we introduce ourselves? Happycoding.

happycoding is a software and web agency from Berlin – a brand of Radscheit GmbH – specialising in TypeScript, Next.js, Sanity and process automation for SMBs and corporates across DACH and Scandinavia. With more than 150 completed projects and a senior team of eight specialists, we partner with you from the first idea to well beyond launch.

We believe in the power of well-crafted digital solutions. Every line of code serves a purpose, every interaction is designed with intent. By keeping a close eye on technological trends and best practices, we create systems that inspire today and endure tomorrow. Our work combines clear design with robust system architecture – delivering digital products that scale with your business and endure in the long run.

Our team combines diverse expertise—from strategy and development to design. Driven by a passion for clean execution and structured thinking, we craft digital products that don’t just function, but create meaningful and lasting impact.

Take your website to the next level – for more leads, more revenue, and sustainable growth.

By improving user experience, optimizing performance, and implementing a scalable design, our website relaunches help attract more visitors, convert leads, and foster sustainable growth.

Scalable from the start

We design systems to grow – with your company, your goals, and your ideas. Our architectures are modular, extensible, and technologically future-proof. This ensures your digital foundation remains stable, even when everything else changes.

Small enough for close collaboration. Big enough for impact.

We’re a focused team and work senior-first: short paths, clear decisions, and direct communication. That’s how we build digital solutions that aren’t off-the-shelf — but tailored to your business, your stack, and your goals.

Case Tree Energy Solutions

Website Tree Energy Solutions

Fresh from our blog

News and trends on web development, design and technology: articles, tips + insights.

Jul 3, 20265 min read

When Medusa Is the Wrong Choice

Medusa is a strong tool, and for many shops it is still overkill. Where Shopify ships faster and cheaper, where operational complexity eats the benefit, and why naming the limits is what makes the recommendation credible.

Matthias Radscheit

Jul 3, 20266 min read

Composable Commerce with Medusa: Modularity as Strategy, Not Buzzword

Why "composable" with Medusa is not a marketing word but the system's architecture — and where modular best-of-breed setups end up costing more than the monolith they were meant to replace.

Matthias Radscheit

Jul 3, 20266 min read

Medusa self-hosted on Hetzner: TCO and data sovereignty, honestly calculated

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

Jul 3, 20267 min read

Medusa vs Shopify Plus: the B2B math no vendor puts on the table

Shopify Plus sells comfort and time-to-market, Medusa sells control. The decision doesn't turn on the feature list but on transaction fees, lock-in, and whether you want to carry operational responsibility.

Matthias Radscheit

Jul 3, 20266 min read

Medusa Procurement: Not a Turnkey Feature — and That's Exactly Where the Work Begins

Medusa is an excellent commerce core, but you won't get real enterprise procurement out of the box. The b2b-starter is boilerplate, not a maintained product. What that means for your procurement processes, your effort, and your make-or-buy decision.

Matthias Radscheit

Jun 28, 20267 min read

When Next.js Is the Wrong Choice: The Limits Honest Advisors Name

Next.js is excellent — and for a whole class of projects it's the wrong call. An honest boundary for decision-makers: overengineering, migration costs, and the point where I'd pick it anyway.

Matthias Radscheit

Jun 28, 20267 min read

Core Web Vitals Are Revenue: What CIOs Actually Need to Know About Performance

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

Jun 28, 20268 min read

Next.js as an integration layer for legacy systems: modernise without the big bang

SAP, TYPO3, Salesforce and ageing ERP systems aren't going anywhere. They still have to talk to modern frontends. How Next.js works as an integration layer and Backend for Frontend to decouple legacy step by step, what holds the pattern up, and where it tips over.

Matthias Radscheit

Jun 28, 20267 min read

Next.js on Hetzner instead of Vercel: the sovereign alternative

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

Jun 28, 20268 min read

Next.js + Medusa over SAP Commerce: why I pick the open-source stack

SAP Commerce + Angular gets sold as the safe enterprise standard, usually without the full bill attached. Here is why Next.js + Medusa wins strategically on TCO, vendor lock-in and developer availability, and where SAP still remains the right call.

Matthias Radscheit

Jun 27, 20268 min read

Migrating from Firebase to Supabase: the hard part is the data model

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

Jun 27, 20267 min read

What Supabase Really Costs: An Honest TCO Look at Cloud vs Self-Hosted

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

Open for select projects

Let's talk about your project

Book a no-obligation call, send us an email, or use the form – we'd love to hear from you.

150+

Completed projects

Years of experience

Senior‑level team members

Book a call hej@happycoding.agency

Custom software with technical excellence.

May we introduce ourselves? Happycoding.

Take your website to the next level – for more leads, more revenue, and sustainable growth.

Scalable from the start

Small enough for close collaboration. Big enough for impact.

Case Tree Energy Solutions

Fresh from our blog

When Medusa Is the Wrong Choice

Composable Commerce with Medusa: Modularity as Strategy, Not Buzzword

Medusa self-hosted on Hetzner: TCO and data sovereignty, honestly calculated

Medusa vs Shopify Plus: the B2B math no vendor puts on the table

Medusa Procurement: Not a Turnkey Feature — and That's Exactly Where the Work Begins

When Next.js Is the Wrong Choice: The Limits Honest Advisors Name

Core Web Vitals Are Revenue: What CIOs Actually Need to Know About Performance

Next.js as an integration layer for legacy systems: modernise without the big bang

Next.js on Hetzner instead of Vercel: the sovereign alternative

Next.js + Medusa over SAP Commerce: why I pick the open-source stack

Migrating from Firebase to Supabase: the hard part is the data model

What Supabase Really Costs: An Honest TCO Look at Cloud vs Self-Hosted

Let's talk about your project

High-Traffic Website Projects Successfully Using Sanity.io

Supabase or Firebase: In Europe, the Choice Isn't a Feature Question

Website for my mid-sized business: Framer or WordPress?

Next.js on Hetzner instead of Vercel: the sovereign alternative

Core Web Vitals Are Revenue: What CIOs Actually Need to Know About Performance

Medusa self-hosted on Hetzner: TCO and data sovereignty, honestly calculated