Joseph Derrick.
I build websites and web apps, mostly for musicians, artists and small organisations, plus a growing set of free tools anyone can use.
I also run a woodwind & brass repair workshop, so I know the small-business side of the table too. josephderrick.repair ↗
29 live projects · 9 for clients
Client work
Sites and apps I’ve built for other people.
Swing 42
Swing 42 is a jazz manouche band from Christchurch, New Zealand — inspired by Django Reinhardt, playing hot jazz with heart.
swing42.jderrick.app →
Dangar Island Merch
Shop official Dangar Island Merch apparel, mugs and more — printed on demand, shipped Australia-wide.
dangarislandmerch.reallycoolstores.com →
emus
exploratory music sydney
a calendar and newsletter for improvised, exploratory, experimental music and sound art in Sydney and its surrounds
www.emus.space →
Ginkgo Glass
Bespoke Stained Glass, North Yorkshire
Bespoke stained glass: hand-painted commissions, decorative panels and conservation glass painting from a studio in North Yorkshire.
ginkgoglass.co.uk →
Joseph Derrick Woodwind & Brass Repairs
Professional woodwind & brass instrument repair in Sydney — flutes, clarinets, saxophones, oboes & brass. Servicing, restoration & overhauls.
josephderrick.repair →
Laura Altman
Laura Altman - Sydney-based musician working with clarinet across improvised, exploratory, and folk music contexts
laura-altman-site.pages.dev →
Robbie Avenaim
Drummer, Sound & Installation Artist
Robbie Avenaim — Australian drummer, sound and installation artist working with robotic and kinetic percussion.
robbieavenaim.com →
Safe in Sound
Music + Improvisation + Communication
An accessible experimental music program bringing live improvised concerts to people with disability — at home and on festival stages across Australia.
safeinsound.com.au →
Splinter Orchestra
A radically inclusive large-scale improvisation orchestra based in Sydney
www.splinterorchestra.com →Tools & apps
Things I’ve built for anyone to use. Jump right in.
Yoomia New
Modern Violinist
Official website of Yoomia — internationally recognised New Zealand electric violinist, luxury event entertainer, and music educator.
yoomia-redesign.jderrick.app →
Yoomia
Modern Violinist
Official website of Yoomia — internationally recognised New Zealand electric violinist, luxury event entertainer, and music educator.
yoomia.jderrick.app →
Synoptic Chart
Live NZ weather maps
Surface-pressure charts with fronts, local & world weather, and Christchurch tide times. A clear, large-text weather app.
synoptic-chart.jderrick.app →
Pholia
Audiobookshelf Client
A fast, offline-first Audiobookshelf player for the web. Passkey sign-in, chapter-aware playback, and download-for-offline as an installable PWA.
pholia.jderrick.app →
ABS Shim
Serverless Audiobookshelf Backend
A serverless, Cloudflare-native backend that speaks the Audiobookshelf API. Stream your audiobook library from cloud storage to any ABS app — no server to run.
abs-shim.jderrick.app →
Watermark Remover
in-browser, no upload
Erase the Gemini watermark from images right in your browser. No upload, no sign-up — it reverses the watermark exactly, and can learn other marks too.
watermarkremover.jderrick.app →
Story Teller
A digital archive of the classic Story Teller children's audiobooks — listen to every story and read the original magazines online.
storyteller.jderrick.app →
Grocery Tracker
Tracks Woolworths, Coles and Aldi grocery prices over time and compares them store-to-store. Feeds the BoxDivvy packer
grocery-tracker.jderrick.app →
Stitch
combine messaging-app screenshots
Drop overlapping iOS messaging-app screenshots and get one tall image. Runs entirely in your browser — nothing is uploaded.
stitch.jderrick.app →
Gigsorted
Your details, once. Every gig, sorted.
Payday super for working musicians and crew, without the paperwork. One click makes the bank file, super file and audit records for every gig. Getting paid is free forever.
gigsorted.com →
KJO Reports
Kyle & Jackie O show analysis
Daily Kyle & Jackie O show reports: AI-flagged moments, full transcripts, advertiser tracking, and audio clips, all browsable in one place.
kjo-reports.pages.dev →
TinnyGo
Ride & boat share for Dangar Island & Brooklyn
Community ride and boat share for Dangar Island and Brooklyn (NSW). A small, invite-only PWA that matches neighbours travelling at the same time.
tinnygo.com →
Mailing lists and transactional email
cf-email
cf-email.jderrick.app →
Paint Tin Label Wrapper
wrapper.jderrick.app →Behind the scenes
Private builds. The apps need a login, so each card opens a write-up instead.
cf-pbx
multi-tenant PBX with an edge-native control plane
The control plane — dashboard, config, APIs and live calls — runs on Cloudflare Workers, D1 and Durable Objects. FreeSWITCH handles the actual call audio on a media node.
🔒 Private build · read about it →
School Music Scheduler
Weekly lesson timetabling for a peripatetic music teacher — schedules lessons around classes, breaks and campus transit with a constraint solver.
🔒 Private build · read about it →
Podcast Feed Generator
Turns live radio recordings into podcast feeds — with automated track lists and chapter markers.
🔒 Private build · read about it →
wharf dashboard
Live dashboard for wharf — a self-hosted job runner that executes project handlers on remote nodes, invoked from Cloudflare Workers.
- Cloudflare Workers
BoxDivvy Packer
Turn the weekly BoxDivvy packing-guide xlsx into the four printout sheets used while packing customer boxes, with Claude-assisted category suggestions for new products.
🔒 Private build · read about it →
Deerubbin Car Share
Community car sharing on the Hawkesbury River. Book a shared car, log trips and fuel, and split costs fairly.
🔒 Private build · read about it →Get in touch
Want something built, designed, fixed, or taken off your hands? Tell me about it. Only your name, email, and a message are needed — everything else just means a better first reply.
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