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Matthew Deaves
Matthew Deaves
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Blog

Occasional thoughts on software, AI, and what I'm learning along the way.

Case Study - Developer Tooling 5 July 2026

What an architecture-review skill found in PeerTalk and BomberTalk

I ran Matt Pocock's improve-codebase-architecture skill over PeerTalk and BomberTalk. This post is about the changes I made based on its findings.

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Hardware - Retro Gaming 5 June 2026
Quake Tactical Computer app icon

A Quake tactical computer for the Apple Watch

Quake II's help computer, rebuilt as an iPhone and Apple Watch app. An old Mac running Quake streams its live game state to your phone and wrist (health, ammo, objectives, damage buzzes and in-game sounds) and records the match as a workout.

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Case Study - Software Optimisation 24 May 2026
Quake II app icon

Optimising Quake II on seven old Macs

I forked yquake2 5.11 and used Claude Code to get a build tuned for old PowerPC and Intel Macs, the sister project to the QuakeSpasm one.

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Case Study - Software Optimisation 9 May 2026
QuakeSpasm app icon

Optimising Quake on seven old Macs

I forked QuakeSpasm to see if I could use Claude Code to get a build tuned for old PowerPC and Intel Macs.

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Case Study - Developer Tooling 3 May 2026

How I guardrail Claude Code for devops

Last week the Guardian ran a story about an AI coding agent that deleted a firm's production database in nine seconds. From the post-mortems, the only safeguards in place were project rules and the AI tool's built-in prompts. This post is about what I run on top of prompts when I let Claude Code drive devops on AWS: IAM, hooks, and a deterministic CLI.

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Case Study - Solo Development 1 May 2026

Cookie is live

Cookie is a recipe app I built. It's now live at cookie.matthewdeaves.com for my own use, with a home hosting mode if you want to run your own copy. A short post about what it does and the work that went into making it ready for the 'sort of' open internet.

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Case Study - Developer Tooling 28 April 2026

Three Levels of AI-Assisted Pentesting

A month spent pentesting two of my own projects with Claude. Three escalating levels: ad-hoc review, a curated suite wrapped in a harness, and HexStrike. Here is what worked, what did not, and how to set it up against your own repo.

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Classic Mac 6 April 2026

BomberTalk Alpha

I played a networked Bomberman game across a Mac SE, a Performa 6200, and a Performa 6400. Three machines spanning 1987 to 1995, all talking to each other over TCP and UDP.

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Case Study - Developer Tooling 5 April 2026

My Virtual Pentest and DevOps Team

If you're building apps with AI and putting them live, you have to at least try to secure them. Here's how I did it with bash, open source tools, and Claude Code.

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Case Study - Developer Tooling 3 April 2026

Pentesting with Rook

Anthropic added a companion to Claude Code called Buddy. Mine's an axolotl named Rook. I've been running a pentest suite against Cookie and its infrastructure over the past few evenings, and Rook kept catching things I was missing.

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Case Study - Developer Tooling 29 March 2026

Guardrails for Claude Code: Hooks, Rules, and Constitutions

Claude Code hooks, rules, and a project constitution enforced via GitHub Spec Kit. A primer on each layer, with a real use case: keeping ES5 compatibility on a recipe manager that runs on iPads from 2012.

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Case Study - Infrastructure 21 March 2026

Rockport: A Self-Hosted LLM Proxy

I built a self-hosted LiteLLM proxy on EC2 behind a Cloudflare Tunnel. It routes Claude Code traffic to AWS Bedrock with per-key budgets, idle auto-stop, image generation, video generation, and image editing. The repo is public and I'd welcome feedback from anyone who works with this sort of infrastructure.

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Case Study - AI Development 15 March 2026

Building an Evaluation Harness with Claude Code

I built an evaluation harness to measure the quality of LLM-generated pixel art sprites. Five rounds of calibration, a stubborn intent-vs-reality gap, and some useful C tools for getting assets onto classic Macs.

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Case Study - Developer Tooling 8 March 2026

I Ditched My Planning System for Fully Automated GitHub Spec Kit

I built 14 custom skills, 4 hooks, and 1.2 MB of phase plans for PeerTalk. Eight phases done, real hardware tested, proper results. Then I started again from scratch with Spec Kit across three repos. Automated builds, hardware testing on Classic Macs, and a cross-platform chat app built in hours.

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Case Study - Developer Tooling 22 February 2026

Automating Performance Tests on a Performa 6200

How MCP servers and Claude Code skills turned manual hardware testing into an automated workflow. From FileZilla hell to one-command benchmarks on a 30-year-old Mac.

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Hardware - Repair 10 February 2026

Retro Mac Power Supplies and PS3 Maintenance

Two hardware projects: fixing dead power supplies in my Macintosh Performa 630 and 6200 with a cheap SFX PSU mod, and a PS3 thermal paste replacement.

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Case Study - Developer Tooling 1 February 2026

Project-Specific Claude Code Customisations

Building custom MCP servers, skills, hooks, and agents for Claude Code. A workshop with Anthropic led me to create a full development toolkit for the PeerTalk SDK project.

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Analysis - Code Quality 26 January 2026

A Code Review of the Rapid Prototype

The CI pipeline had 15 jobs tracking coverage, complexity, and security. This post examines what they measured, what they missed, and what improvements were made for future projects.

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Case Study - AI Development 11 January 2026

Rapid Prototyping with Claude Code: A 3-Day Challenge

A 3-day challenge to build a working prototype with as many features as possible, plus a day of CI/CD automation. Django backend, React frontend, ES5 interface for legacy browsers, and AI-powered features.

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© Matthew Deaves