Independent notes & experiments

Learning by building,
one quiet system at a time.

A personal workspace for practical experiments in software, data, and the ideas found between them.

Read notes

Selected threads

2026 — ongoing
01

Quiet Systems

Experiments in small, observable services and the routines that keep them dependable.

02

Data Sketchbook

Compact studies in data cleaning, visual explanation, and reproducible analysis.

03

Learning in Public

Short notes on programming, books, and questions worth revisiting over time.

Recent notes

Ideas in progress
Systems

A small field guide to reliable personal infrastructure

Notes on keeping a modest stack understandable: fewer moving parts, useful logs, and recovery plans that fit on one page.

Data

What I learned from visualizing noisy data

A practical reflection on choosing honest scales, removing decorative clutter, and letting uncertainty stay visible.

Reading

Reading notes: tools that reward curiosity

A collection of small ideas about software that remains calm, inspectable, and pleasant to return to.

About this place

A notebook for things worth understanding slowly.

Xun’s Lab is an independent personal site for recording small experiments, useful mistakes, and what I learn while making software.

The aim is simple: stay curious, explain things clearly, and leave each system a little easier to understand than I found it.