M31 Digital is a software studio from Baden-Württemberg. Our own platforms and products for the DACH region. Stack: Next.js, Tailwind, Payload, PostgreSQL, Hetzner Cloud. Hosted in Germany.
Six guidelines for the studio's architecture, operations and business model.
M31 Digital is a software studio. Specification, development and operation of our own platforms are handled entirely in-house.
Every platform and product goes to market under its own name, its own domain and its own identity. M31 Digital is the company behind them.
Technology choices are guided by stability and maintainability. Defined interfaces and well-maintained dependencies make version upgrades routine.
Authentication, payments, AI integration and deployment follow established patterns. Every project runs as a self-contained system with its own database.
Hosting on Hetzner Cloud, registered office and data processing in Germany. GDPR compliance is an architectural requirement; data minimisation is the default.
The studio is developed and operated using its own funds. The pace and direction of the roadmap are set internally.
M31 Digital is a software studio based in Baden-Württemberg. We design, build and operate our own SaaS platforms and mobile apps for the DACH market — from product definition through UI design and engineering to hosting, monitoring and ongoing support.
We use a single, long-proven stack throughout: Next.js and React Native on the frontend, Payload and FastAPI on the backend, PostgreSQL as the central data layer, Hetzner Cloud as infrastructure. All data is processed in German data centres. Every platform runs as a self-contained, isolated system with its own domain and its own deployment.
Two platforms for the DACH region: CasterMail for acting and casting, GolfRanger for golf. Both in active development, run as legally independent brands of M31 Digital GmbH i.G.
16 industry directories, a curated contact network for the DACH acting scene, and an email composer with rate limits.
A directory for the DACH golf market: courses, travel, hotels, coaches, shops, books, apps and tutorials — curated in one app, with AI assistance for recommendations.
Both platforms are in active development — release follows once each development phase is complete.
All platforms build on the same stack and the same code patterns. Every platform runs as a self-contained system with its own database, its own deployment pipeline and its own domains. Defined interfaces and well-maintained dependencies keep version upgrades routine. Hosting on Hetzner Cloud, data processing in Germany.
Three standalone applications outside the platform portfolio: an offline-maps PWA, a browser strategy game and AI-assisted receipt capture. Different markets, different tech stacks, different levels of maturity.
A standalone application for AI-assisted receipt capture. Photograph a receipt and the AI recognises the supplier, amount, tax rate and ledger account. The entry is posted via the sevDesk API; the system learns from every correction. Self-hosted, privacy-compliant, with no third-party cloud.
Vectorised world maps, offline routing, first-aid protocols and survival tools. Entirely on-device, with no server and no tracking. A progressive web app for travel, crises and the backcountry.
A maritime strategy game in the browser. Build fleets, colonise islands, forge alliances. Seasonal ranking leagues. The next iteration will be rebuilt on an updated stack.
Status and focus differ per application. There is no shared roadmap.
For press, partnerships and speculative applications.
