CDT/Software developer

Index 001 · 2026 · it me

it me.

Callum David Thomas — software developer, Melbourne

I build clean, modular web apps — slowly and on purpose. Construction tools, traffic engineering software, late-night experiments. Currently freelancing out of Melbourne.

StatusOpen

Loc.Melbourne

TimeUTC+10

See selected work →

Next.jsTypeScriptHTMLCSSChakra-UIVercelPHPMySQLAWS-S3BootstrapUX/UIFigmaPhotoshopFront End DesignBrandingAPIJavascriptTailwindCSSWordpressDesignPluginReplatformVisual Basic ScriptWindows OSNext.jsTypeScriptHTMLCSSChakra-UIVercelPHPMySQLAWS-S3BootstrapUX/UIFigmaPhotoshopFront End DesignBrandingAPIJavascriptTailwindCSSWordpressDesignPluginReplatformVisual Basic ScriptWindows OSNext.jsTypeScriptHTMLCSSChakra-UIVercelPHPMySQLAWS-S3BootstrapUX/UIFigmaPhotoshopFront End DesignBrandingAPIJavascriptTailwindCSSWordpressDesignPluginReplatformVisual Basic ScriptWindows OS

§ In the wild

5 live

Apps that are actually running.

Click through, kick the tyres. Live URLs only — no screenshots, no demos behind glass.

001 · Personal tool● Live

Almanac

A personal knowledge base I use every day — notes, links, and recurring rituals, all searchable.

almanac.callumdavidthomas.comVisit ↗

002 · Public web app● Live

Traffic Tools

Open-source calculators for traffic engineers and town planners.

traffictools.com.auVisit ↗

003 · Personal tool● Live

Boatlog

Trip logbook for the boat — distance, weather, fuel, crew.

boatlog.vercel.appVisit ↗

004 · Web game● Live

Sliding Tiles

Retro sliding-tile puzzle with five grid sizes and Unsplash imagery.

sliding-puzzle-rho.vercel.appVisit ↗

005 · Web game● Live

Connect Five

Strategic five-in-a-row on a 19×19 grid. Black vs. white, turn-based.

connect-five-five.vercel.appVisit ↗

§ Selected work

Things I have made,
on purpose.

Traffic Tools

A collection of calculators and tools designed for traffic engineers and urban planners.

CentreSafe

A risk management portal for companies and NGOs.

CentreSafe Web Design

Brand guidelines and web design template for CentreSafe.

Sliding Tiles Puzzle

Retro sliding tile puzzle game with multiple grid sizes.

Connect-five

A web game built with Next.js and Tailwind CSS.

Portfolio

My personal portfolio built with Figma, Next.js, and Tailwind.

See the full archive →

§ B-sides

small internet artifacts

Stuff that doesn't belong anywhere else.

DIY sticker — Callum David Thomas

Shop · 1 product

CDT Sticker.

Premium adhesive vinyl, hand-die-cut, signed by the artist. Sourced and assembled by you, at home, with materials of your choosing.

SKUCDT-001
Edition001 of ∞
MaterialBYO
Ship time~30s

$0$15.00◉ today only

↓ Download stencil.svg

Print, cut, stick. Results not guaranteed.

Greentext · /b/asement

File: cape.jpg (12 KB, 480x640)

Anonymous 05/12/26(Tue) No.4815162342

>be me

>be wearing a cape

(no it's actually true)

§ Get in touch

The basement door is always open.