JTJohannes Theiner

ADFC Cuxhaven

Making Cuxhaven a better place to cycle

As chair of ADFC Cuxhaven, I work to make everyday cycling safer, easier, and harder to ignore.

cuxhaven.adfc.de

My role

Board work

I lead the local association, connecting political advocacy with the practical work that keeps it running.

  • Represent Represent the association to public authorities, local politics, and the wider public.
  • Coordinate Coordinate volunteer work and move shared initiatives forward.
  • Organize Organize bicycle coding sessions and guided rides with the team.

Volunteer software

Tools for the association

All software projects

Small internal tools remove repetitive work, from bicycle coding sessions (anti-theft frame registration) to distributing printed tour calendars.

Volunteer work ADFC Cuxhaven
2026

Bicycle Coding App

Multi-device app for bicycle coding sessions (anti-theft frame registration) with certificate generation, an admin dashboard, queue and status views, exports, print workflows, and automatic data cleanup.

TypeScript Next.js
Volunteer work ADFC Cuxhaven
2026

Tour Calendar Tracker

Tracks the distribution of printed tour calendars, including locations, contacts, delivery quantities, and refill reminders.

TypeScript Next.js
Volunteer work ADFC Cuxhaven
2026

Wahl-O-Rad Data Collector

Collects party positions on cycling policy for the Wahl-O-Rad voting advice tool ahead of the local election: theses per municipality, personalised fill-in links or PDF answer sheets, mass mailing, and status tracking per party.

TypeScript Next.js
Volunteer work ADFC Cuxhaven
2025

RVP API Wrapper

Go service for the ADFC tour and event portal. It works around known API issues and provides a consistent REST interface for custom tools.

Go REST API
Volunteer work ADFC Cuxhaven
since 2024

Schaufenster

Renders the slides for the info display in the ADFC Cuxhaven shop window: news, tours, events, refreshed on an hourly, daily, and weekly schedule.

Python

Cycling locally

What I push for

Safer junctions

Junctions should be legible, predictable, and safe for people of every age.

Continuous routes

Good cycleways cannot stop where riding gets difficult. What matters is a connected network.

Everyday cycling

Cycling should be a dependable choice for getting to work, school, and local shops.