querdenker engineering

Welcome

Developer documentation for querdenker engineering

Last updated: September 16, 2026

Welcome to the QDE Developer Wiki. The documentation separates qdGate-specific information from generic guides for build, interfaces, updates and system recovery.

German is the source language

Only this page exists in English so far. Everywhere else you will see the German text — that is the deliberate fallback, not a missing page. A translation is created by putting a *.en.mdx file next to the German one.

Workflows

qdGate-specific

  1. Start the system – check prerequisites, connect the hardware and establish the first connection.

Generic

  1. Build an image – create the Buildroot system and its artifacts.
  2. Use the interfaces – access hardware and services from your own applications.
  3. Perform an update – update a system with RAUC.
  4. Recover the system – flash an image as a recovery measure.