QR Digital Membership Card System on KDE – Need Integration Help

Hey everyone,

I’m working on a lightweight membership card system on Linux and testing it with a KDE setup. The system generates QR-based digital membership cards that can be scanned for quick verification.

The backend is self-hosted, and the basic flow is working (card generation + scanning via mobile or external scanner). However, I’m running into challenges when trying to integrate it smoothly into a KDE-based workflow.

Specifically, I’m looking for help with:

A. Best way to handle QR scanning directly from a KDE desktop environment

B. Any KDE apps or tools that can be used or extended for scanning/verification

C. Triggering system notifications after a successful scan

D. Possibility of creating a lightweight desktop widget or quick-access tool

My goal is to keep everything lightweight, secure, and practical for real-world use without relying on external services.

If anyone has experience with similar setups or knows KDE tools that could help here, I’d really appreciate your guidance.

For barcode scanning there’s Prison , for popup notifications there’s KNotifications . Both have C++ and QML APIs that should cover the features you mentioned.

In terms of existing apps, Qrca ( Utilities / Qrca · GitLab ) is probably the simplest one we have involving barcode scanning.

2 Likes