This repository is a static Jekyll-powered website that serves as a curated database of PCI Express device compatibility with Raspberry Pi Compute Module 4/5 and Pi 5. It catalogs hundreds of PCIe cards (GPUs, network, storage, USB, etc.), carrier boards, and HATs, documenting their functionality, required drivers, and links to purchase and community issues. The site is built from markdown files organized in collections and deployed to GitHub Pages via CI. It is not a software application that runs in production but a documentation/content site. The repository also includes auxiliary resources such as a Docker-based cross-compilation environment for building custom Linux kernels for the Pi and an Ansible playbook for benchmarking network cards.