Blog

A native Apple double-entry accounting app, verified against a real 46,000-transaction GnuCash book to the cent — built from a single-sentence prompt, with the agent drafting its own specifications. What the method got right, and what real data found that no test suite would.

Fifteen days, 220 commits and 32,000 lines of Swift — a local-first knowledge base whose database is a folder, built from a single-sentence prompt. What the method got right, and the four traps that ate real hours.

Our website has been redesigned from the ground up — an editorial design system called Rosely, conceived in Claude Design and implemented with Claude Code.

An overview of my quantitative analysis pipeline: data ingestion, benchmarking with QuantStats, and executing Mean-Variance, Semivariance, and Hierarchical Risk Parity (HRP) optimizations.

Practical engineering challenges of building a portfolio optimiser: importing data from multiple brokerages, retrieving clean price feeds, and navigating deprecated quantitative libraries.

Our new series of articles on financial analysis and portfolio optimisation using Python.

Reflecting on my first Astro project—migrating from Gatsby/Next.js, building a popular starter template, and partnering with Antigravity for a major v7 overhaul.

An overview of the major website overhaul, shifting to Astro v7, Tailwind CSS v4, and dynamic on-demand rendering using Netlify serverless functions.

Another year has passed, and we have refreshed our website, using the latest version of Gatsby.

Welcome to the new Hello Tham website! It has been completely rewritten as a modern web app using Javascript, React, Gatsby, Netlify CMS and Markdown!

A beautiful operating system, still healthy after 50 years.

Welcome to the new website!

There is no shame in retiring early, and potentially many benefits.

How did my tech predictions for 2018 fared?

Technology isn't always positive, or a benefit.

This is the sixth part (and probably the last, for now) of my series of articles on learning to code at age 55 and creating some prototypes.

This is the fifth part of my series of articles on learning to code at age 55 and creating some prototypes.

This is the fourth part of my series of articles on learning to code at age 55 and creating some prototypes.

This is the third part of my series of articles on learning to code at age 55 and creating some prototypes.

This is the second part of my series of articles on learning to code at age 55 and creating some prototypes.

Part 1 of a series of articles about me learning how to code and delivering two prototypes.

Insights you may not realise about the multiplication table.

Five predictions for the technology industry for 2018

A recap of a trip to Hong Kong in 2017 to attend the RISE conference.

A personal history of the use of smartphones over 20 years.

What is the relevance of the job title these days?

Advice on how to have a satisfying career and life

Five predictions for the technology industry for 2017

How to run 4.3BSD Unix in an emulated Micro VAX 3000 using a Raspberry Pi

How to run Unix Version 7 in an emulated PDP-11 on a Raspberry Pi.

Using Tableau to visualise the diversity of LEGO sets.

How many of these signs have you experienced?