Building a HAProxy Stream Processing Offload Agent (SPOA) library in Rust — zero-dependency async design, mpsc write batching, 95.9% test coverage, and 2.8–4.9× higher throughput than the Go reference implementation.

How to configure PowerDNS Recursor 5.4 to resolve directly against TLD name servers without depending on the root name servers at runtime, using a local root.zone file loaded via zonetocaches — including DNSSEC validation, trust anchor setup, and the race condition that prevents it from working without a hint file.

How to run Hickory DNS as a full recursive resolver starting from the root zone, with DNSSEC validation, TLS-encrypted upstream connections, Happy Eyeballs, and Prometheus metrics — including all configuration options added in the recurser-from-root-zone branch.

vigil-rs is a PID 1 / container init daemon written in Rust. It supervises multiple processes, runs health checks, fires HTTP(S) alerts on state transitions, and exposes a REST API over a Unix socket with native zombie-reaping and per-service stop signals.

Learn how HAProxy container uses TLS Server Name Indication (SNI) to route encrypted TCP connections without decrypting them — enabling multiple services like Nextcloud and XMPP to share port 443.

A Rust rewrite of mergelog 4.5, a C tool from 2000 that merges Apache log files chronologically. Six optimizations — a k-way heap merge, a hand-rolled CLF parser, String buffer reuse, mimalloc, 4 MiB read buffers with SIMD newline search, and zstd support — took the Rust binary from slower than the original to 2.26× faster.