Linux Systems Programming

A chaptered tutorial site: Linux systems programming in modern C++23, Go, and Rust for intermediate-to-advanced developers. Every hands-on chapter ships the same runnable example in all three languages (switchable code tabs), and every example doubles as a standalone demo.

• Site: https://patterncatalyst.github.io/linux-systems-programming/
• Stack: Jekyll (GitHub Pages via Actions), examples in examples/NN-slug/{cpp,go,rust}/
• Environment: Fedora 44 host; disposable KVM lab (systems-target, systems-peer) for anything privileged, kernel-observing, or two-host; Podman LGTM stack (Grafana/Loki/Tempo/Mimir) + Performance Co-Pilot for observability chapters.
• eBPF scope: tooling only (bcc-tools, bpftrace, bpftool); we observe our userspace programs and do not write kernel eBPF.

Local development

bundle install
bundle exec jekyll serve --baseurl ""     # http://127.0.0.1:4000/

Verification model

CI validates site integrity and that examples build. It cannot run VM, root, or observability demos: the authoritative gate is a host run of scripts/test-all-examples.py --mode all with the lab up. A demo is marked verified only when it produced its claimed observable effect, never merely because it compiled.

License

This project is dual-licensed to separate the code from the writing:

• Code: everything under examples/, plus build and helper scripts and inline code snippets, is licensed under the Apache License 2.0 (LICENSE).
• Content: the tutorial and book prose (chapters under _docs/), diagrams and images under assets/, and the slide decks under presentation/, is licensed under Creative Commons Attribution 4.0 International (CC BY 4.0) (LICENSE-docs.md).

Copyright 2026 PatternCatalyst (Robert Sedor).