Welcome back! I want to write about a specific challenge that popped up while upgrading my Raspberry Pi setup. Specifically, running the Picamera2 module inside a Docker container on Debian Trixie with Python 3.13. While the library works great natively, combining it with containerization introduces some versioning headaches. The stock Debian repositories often ship older versions of libcamera that lack the necessary Raspberry Pi camera pipeline support. Additionally, there are missing dependencies like the KMS module for Python that aren’t available in standard repos. In this post, I will explain how to configure a custom Docker image to bridge these gaps using system-wide packages and specific environment variables. We’ll cover setting up apt sources, handling library versions, and ensuring the container can actually detect your camera hardware without errors. This setup allows for separation of code while still accessing hardware related stuff.