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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; we 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.