Jörn Dyherrn

Projects & references

Selected projects from over 10 years of development experience.
From startups to enterprise clients.

// Projects

Selected work.

Platforms, apps and products — from concept to production.

01Live

bockapp.de

Spontaneous activities with friends

My own product from concept to production: post an activity (emoji, title, time), friends get push & email and RSVP with a single tap — everyone who's in automatically joins the live group chat. Next.js PWA with PostgreSQL, real-time via server-sent events, web push and custom auth, deployed with Docker and Caddy on Hetzner.

  • Next.js
  • TypeScript
  • PostgreSQL
  • PWA
Screenshot of bockapp.de
View project
02Live

audinom.com

Learning platform for musicians

Full-stack development of an innovative learning platform that teaches music through the ear instead of through notation. React frontend, Node.js backend and cloud infrastructure with audio streaming and interactive exercises.

  • React
  • Node.js
  • AWS
  • TypeScript
Screenshot of audinom.com
View project
03Live

hauswertpro.de

AI-powered real estate valuation

Development of an AI-powered platform for real estate valuation. Users upload documents such as exposés and financial plans and receive an automated analysis with price estimates and key figures.

  • React
  • Next.js
  • TypeScript
  • AI/ML
Screenshot of hauswertpro.de
View project
04Live

sparrail.de

Smart rail journeys

A platform for intelligent ticket splitting on rail journeys. Automatically analyses cheap combinations of single tickets and regional passes to reduce travel costs by up to 70%.

  • React
  • Next.js
  • TypeScript
  • Node.js
Screenshot of sparrail.de
View project
05Live

buchgefuehle.de

Feelings instead of stars

Concept and development of a community platform where readers rate books by feelings instead of star ratings. Nine emotion colours form a collective mood for each book — readers filter titles by emotion, discover authors and watch the community grow with every vote. Built with Laravel and a bespoke, literary design language.

  • Laravel
  • PHP
  • Tailwind CSS
  • MySQL
Screenshot of buchgefuehle.de
View project
06Shipped

fanbloc.gg

Fan engagement platform

Development of an interactive fan engagement platform for sports clubs and content creators. Real-time features, gamification and social integration.

  • React
  • React Native
  • GraphQL
  • Real-Time
Screenshot of fanbloc.gg
07Shipped

wallfair.io

Event trading platform

Frontend architecture and development of an event trading platform with real-time data visualization, live-streaming integration and complex state management.

  • React
  • TypeScript
  • WebSocket
  • D3.js
Screenshot of wallfair.io

// Contact

Got a project in mind?
Let's talk.

Email

kontakt@dyherrn.dev

Phone

+49 176 72478078

Location

Robert-Blum-Str. 19, 06114 Halle (Saale)

Whether it's a web app, mobile app or technical advisory — I look forward to hearing from you. Tell me about your project and we'll find the best solution together. Typical response time is under 24 hours.

Get a project estimateBook a callSend an email