Xu's Tech Notes / blog

Getting Started with Raspberry Pi Clustering

January 15, 2026 · 6 min read

A quick walkthrough of setting up a small Kubernetes cluster using three Raspberry Pi 4 boards, including networking, storage, and initial workload deployment.

Notes on Learning Rust: Ownership and Borrowing

December 28, 2025 · 4 min read

My notes from working through the Rust book, focusing on the ownership system. These concepts took a while to click but they're elegant once you see the pattern.

Self-Hosting a Git Server with Gitea

November 10, 2025 · 5 min read

Setting up Gitea on a home server as a lightweight GitHub alternative. Covers installation, reverse proxy with Caddy, and SSH key configuration.