ONLINE · OPEN FOR FREELANCE BUILDS// BUILDING IN PUBLIC

$ whoami → captain-random

I BUILDRANDOMTHINGSon purpose,
in public.

YEARS WEB DEV

20+^yrs

YEARS IN RETAIL

23^yrs

POSTS PUBLISHED

163^articles

RECENT COMMITS

193^/30d

Hey — this is Captain Random. I build production software and experiment with how far I can push my imagination into the digital realm, bridging the gap between technology and the problems worth solving. This site is for everyone — here you can see real projects, real workflows, and honest evaluations of the tools I use and build. It's a new project, and it'll grow with every commit. Stick around and watch it take shape.

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What's new

PremiereTorture Dance — JoJo menacing editShortPremieres Thu 30 Jul · 17:00 BST ArticleSeven minutes on /work/ and no hire button: the problem wasn't the copyGA4 showed a single desktop visitor returning thirteen-plus times, spending seven minutes straight on /work/…27 Jul CourseGitHub: the operating system of shippingRun an entire shipping operation on GitHub as a solo developer: repos as the system of record, the gh CLI as…Updated 26 Jul PageSecurity by designThe whole philosophy, public: the gate that says no, the 20-doc library, and the proof — this site’s own controls.25 Jul

// WHAT I ACTUALLY SOLVE

What I build,
and what gets solved
when I do.

AGENTIC AI & ARCHITECTURE

Building when code generation is free. How I architect agentic-first systems, what works in practice, what doesn't.

RETAIL & HOSPITALITY OPS

23 years in operations and leadership across UK retail and hospitality. Real workflows, real failure points, real software-meets-floor knowledge.

AI TOOL EVALS

Honest, practical assessments of the tools I'm experimenting and shipping with. Includes what didn't work.

CREATIVE AI

AI music workflows, generative art, and video — for work and for play. Real output, shared as it's made.

BUILD IN PUBLIC

Projects from idea to implementation. The process is the point — failures included. Shared live, in public.

LEARNING LOG

What I'm currently studying and learning, and whether it was worth the time.

Recent writing.

Essays, notes & build logs

Build LogConversion

#01

2026-07-275 min read

Seven minutes on /work/ and no hire button: the problem wasn't the copy

GA4 showed a single desktop visitor returning thirteen-plus times, spending seven minutes straight on /work/ with no way to act. The instinct was to rewrite the copy. The data was pointing at something structural — the page had no till.

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Build Logukcalculators

#02

2026-07-275 min read

The sourcing step was always the bottleneck. Day 6 moved it into the cron.

For five days, every ukcalculators claim block was hand-sourced by the operator from individual gov.uk pages. On Day 6, the cron polled the gov.uk Search API live for the first time. The sourcing method changed. The claim-block discipline didn't.

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Build LogContent Pipeline

#03

2026-07-265 min read

Eight clusters triaged, zero published: why autonomous content cadence fails silently

The UK Calculators content pipeline ran three clean cron exits and published nothing for three weekdays. No errors, no alerts, just absence. Three weeks of daily runs showed the failure mode is not bad drafts. It is a gate that rejects everything differently each day, and a cadence monitor that asks the wrong question.

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Build LogUK Calculators

#04

2026-07-265 min read

The cron kept drafting mortgage because gov.uk wasn't in the source set yet

For five days, the cron produced news-cluster drafts and operators shipped gov.uk regulatory pillars by hand. Day 6 changed one thing: gov.uk Search API sources entered the polling loop. Two data-pegged pillars from a single cycle followed immediately.

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Build LogLearning Hub

#05

2026-07-265 min read

The in-chapter TOC needed live JavaScript. It still got a mockup first.

The captainrandom learning hub navigation retrofit ran five phases. Every one went through the UI gate — interactive approval mockup before production code. The most interesting case was P4: the subsystem's only client-side component, with a live IntersectionObserver scroll-spy in its mockup, still approved before a line of React was written.

The privacy work isn't on the /privacy/ page

The /privacy/ page went live in June and covers what it covers. The actual privacy work on this site happened in a data-locality choice, a brand-separation rule, and a username leak in published MDX. Only one of the three announced itself.

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Build LogUK Calculators

#07

2026-07-255 min read

10 of 13 sentences made it. The verifier caught the rest before they reached a pillar page.

The June 30th cron produced a mortgage rate-spike draft grounded in April 2026 data. Ten of thirteen sentences passed. The three that didn't never reached a pillar page — and the next two days showed why that distinction matters at publishing scale.

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Build LogContent Pipeline

#08

2026-07-256 min read

14 days of daily publishing: the three failure modes I hadn't designed for

A 14-day publish cadence on UK Calculators surfaced three failure modes: title-mangling produces permanent ugly slugs, zero-draft mornings expose the absence of a fallback queue, and triage without memory republishes the same cluster it shipped the day before.

AdSense low-value rejection: thin pages, empty hubs, and six SVG diagrams

UK Calculators was rejected for low-value content on 10 July — ads.txt was authorised, so this was purely a content-quality judgement. Three concrete moves addressed the specific inventory-value criteria: expanding thin calculator landings, adding SVG diagrams across the pillar estate, and populating empty hub pages the rejection identified.

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