This repository is a Jekyll-based static website that serves as a comprehensive database of PCI Express device compatibility with Raspberry Pi Compute Module 4 and Pi 5. It contains hundreds of markdown files documenting individual PCIe cards, carrier boards, and HATs, along with their functionality status, driver requirements, and community testing notes. The site is automatically built and deployed to GitHub Pages via GitHub Actions. While primarily a content site, it includes useful extras like a cross-compilation Docker environment for building custom Pi kernels, which is the most technically sophisticated component. The codebase is straightforward Jekyll with some custom plugins for thumbnail generation and YouTube embeds. The project is actively maintained with frequent additions of new hardware listings.