Prototyping & product development for European clientsGot an idea?
I'll build it.

Prototypes, IoT devices, apps and private AI for startups, inventors and product teams across Europe. Electronics, enclosure, firmware and software from one builder, with a fixed quote in EUR. Projects are delivered in English.

Delivery
2–3 weeks for small jobs · larger builds staged
Pricing
Fixed quote, up front
Payment
50/50 for small jobs · milestones for larger builds
You own
Your finished product, code and design files
Based
Queensland, Australia · remote
Built in Australia, quoted in EUR

Fixed-price prototypes and product builds for European clients. No Australian GST, and prototypes shipped to your door.

What I build

From a single replacement part to a complete product with its own apps. Small jobs have a fixed price. Larger builds start with a feasibility sprint, so you get a fixed quote before committing.

01

Small business apps and web tools

Quote calculators, booking forms, job trackers and simple dashboards for your team.

Price€1,100–2,200
02

Sensor monitoring and phone alerts

Tank levels, cool-room temperatures, pumps running, power use. Get a text or app alert when something goes wrong.

Price€600–1,800 + parts
03

CAD and 3D-printed parts

Replacement parts, custom enclosures, brackets and product mock-ups, designed and printed.

Price€220–1,100
04

Stalled project rescue

Got a half-built app, prototype or Arduino project? I'll pick it up and get it working.

Price€750–2,200
05

Feasibility & scoping sprint

For inventors and businesses with a bigger idea. A concept review, parts list or feature plan, CAD render or app mock-ups, and a fixed quote for the full build. The sprint fee is credited to your build if you go ahead.

Price€1,450
06

Full product builds

Hardware, apps and backend built together as one finished product, like the pool controller and BookForge. Fixed quote after a feasibility sprint, paid in stages as each milestone is delivered.

Fixed quoteFrom €11,000
07

Private AI and secure remote access

Report-compiling apps and a private chat assistant for phone, tablet and computer, running on your own hardware with encrypted access for remote staff. Sensitive data never goes to a cloud AI service.

Fixed quoteFrom €4,400

All prices are in EUR. No Australian GST is charged on overseas projects. Hardware parts are charged at cost, and shipping, import duties and any local taxes are extra. Larger builds are paid in stages: a deposit, then payments at agreed milestones.

Prices in: AUD (Australia) · USD (US & international) · GBP (United Kingdom) · EUR (Europe)

Built recently

Real projects in daily use, from a single sensor to a full product with its own apps.

Hardware + softwareBuilt in ~2 weeks · now in live testing

Smart pool and spa controller

A complete connected controller built from scratch: custom electronics, a 3D-designed enclosure, firmware, and apps for Android, iPhone and the web.

  • Controls pumps, lights, heating and outlets from a phone
  • Guest access by QR code for holiday rentals, with limits the owner sets
  • Brand-colour light control and a running-cost estimator
  • The whole app can be rebranded for a different company in hours
  • Secure cloud database link: one service technician can connect to many controllers remotely, with access to controls and logs
ESP32CADAndroidiOSWeb portalCloud database
Wayward Vector controller app home screen with time, weather and pool status
Home
Lights screen with colour and show buttons for a Spa Electrics pool light
Brand-matched light colours
Heater screen with a set-temperature dial and guest temperature limits
Heater with guest limits
Hardware + software + fit-outIn daily use

The Aura Discovery Booth

A walk-in photo booth for a Tamborine Mountain retail store. Seat sensors read the customer's heart rate, the booth takes their photo, and a printed portrait and personal reading come out at the counter. Mobile units were also built for a corporate brand shoot.

  • Designed in CAD first, then built and fitted out in the shop
  • Custom enclosures designed and 3D printed for the counter unit and the portable event version
  • Guided on-screen session with countdown and lighting control
  • Illuminated wall buttons so customers can retake their photo
  • Heart-rate sensing through accelerometers in the seat
Raspberry Pi 5SensorsCAD enclosurePrinting
CAD model of the counter unit enclosure from the front, showing the angled screen opening
Counter unit · CAD
CAD model of the counter unit from the rear, with vent holes and a screw-fixed back panel
Counter unit · rear
CAD model of the portable booth unit with the shop logo embossed on the lid
Mobile unit · lid
CAD model of the portable unit base, showing camera and speaker openings and vent slots
Mobile unit · base
Consumer appbookforgeguild.com · Live on Google Play

BookForge

A hands-free writing app: authors dictate their book by voice, and the app helps them plan, write, revise and export it. Live on Google Play with paid subscriptions, with an iPhone version on the way.

Visit bookforgeguild.com

  • Voice dictation straight into chapters
  • Word-count goals and chapter progress tracking
  • Chapter tools for ideas, editor feedback, hooks, pacing and plausibility
  • Whole-book checks for repetition, voice, timelines and continuity
  • Automatic cloud backup, with books synced across phone, tablet and web
  • Quick sharing of a book across all platforms
  • A secure server runs the AI features, so no private keys are stored in the app
  • Subscriptions through Google Play and the web, linked to one account
BookForge launch screen with gold logo and the tagline Craft your story, forge your legacy
Launch screen
Book progress screen with word-count and chapter progress rings
Progress tracking
Menu of chapter writing tools including idea generation, editor feedback, hooks, pacing and plausibility checks
Writing tools
Pacing feedback for a chapter describing its rhythm and whether it matches the author's goals
Chapter pacing feedback
AndroidiOSSpeech-to-textAICloud syncSubscriptions
Private AI · data securityProven in daily use

Private, on-site AI and secure remote access

A custom AI system with long-term memory that runs on a small device on your premises instead of in the cloud. It has been proven in daily use generating the personalised reports for the Aura Discovery Booth, and it can be built into custom software for businesses whose data can't leave the building.

Staff working from home or on the road reach it through a private, encrypted connection, so they get the same tools without your data being exposed to the open internet.

It comes with custom apps for phone, tablet and computer: fill in a job on site and the report is compiled for you, or ask the assistant a quick question and get the answer from your own records while you're on the go.

  • Customer and client data stays inside your network
  • Remote staff connect through an encrypted private link, with no open ports and access you can revoke at any time
  • Custom phone, tablet and computer apps for compiling reports in the field
  • A private chat assistant for quick recall of your own procedures, specs and job history
  • No per-user cloud AI subscription
  • Keeps working in the office when the internet doesn't
  • Remembers context, so it can work with your own documents and processes
Local LLMEncrypted remote accessMobile appsData privacy
Diagram: office staff and business data connect to a local AI device inside the premises; remote staff on laptops and phones connect through an encrypted link; the connection to outside cloud AI is blocked. CLOUD AI YOUR PREMISES AI LOCAL AI + MEMORY OFFICE STAFF YOUR DATA REPORTS REMOTE STAFF ENCRYPTED LINK
Client projectDelivered

Luxury retreat pool automation

Integrated a commercial Pentair pool system with a custom control system for a guest retreat.

  • Separate guest and admin control screens
  • Automated lighting and spa schedules
  • Tank-level control with float switches
Raspberry PiPythonRemote access
App + web platformIn development

InkSaga

An app for tattoo artists and studios. Artists add finished work to their gallery, and InkSaga writes the social media captions for each platform and posts them. Every studio and artist gets a public gallery that clients can find and share.

  • Studio galleries built from each artist's own portfolio
  • AI-written captions for each social platform
  • Studio admin and billing on the web

Visit inksaga.app

AndroidiOSAIWeb admin
Product design · CADIn development

Pool pump housing concept

A pump housing designed in CAD for 3D-printed prototyping: an integrated strainer pot, threaded union connections and a motor mount, all modelled as printable parts ready for test fitting.

It's part of an ongoing high-efficiency pump project. The performance work is kept under wraps while it's in development.

CAD3D printingFluid handlingPrototyping
Also in the workshop Media-less pool filter Automatic pool cover

How remote projects work

No hourly meter running. You know the price, the deliverables and the date before any work starts, wherever you are.

Step 1

Video call

A 20-minute call on Zoom, Google Meet or Teams about what you need, who it's for and when you need it.

Step 2

Fixed quote in EUR

A one-page proposal within 48 hours: scope, price and delivery date.

Step 3

Build

A deposit to start, with milestone payments on larger builds. You get a progress video every week, plus shared CAD and test builds of the app.

Step 4

Ship and hand over

Prototypes are tested here, then shipped to you with tracking. You receive the code, CAD and design files.

Time zones

Queensland runs on AEST (UTC+10, no daylight saving). My evening is your morning, so early calls on your side work well.

Compliance

Building to sell in the EU? I design with CE marking in mind, including the radio and electrical safety directives that apply. Testing and certification are done by a notified body or test lab as a later step.

Payment and contracts

Invoices are issued in EUR and can be paid online by card through Stripe, or by international bank transfer. Quotes and contracts are written in plain English under Queensland, Australia law.

About

I'm Luke. I've spent more than 20 years building real things that have to work outdoors, in water and around mains power.

I'm a licensed pool builder and professional leak detector who also designs electronics, writes software and does my own CAD and fabrication. Most product projects need three or four different contractors. With me, it's one person who understands the whole thing, from the circuit board to the app on your phone.

That's why I can turn an idea into something you can hold and test in weeks rather than months.

I've also been on the inventor's side of the table. My company, Leaky Finders, designed a pool leak detection kit, took it to market and won the National Gold New Product Award at the 2021 SPASA Awards of Excellence, ahead of national finalists including Waterco. Read the story →

Experience
20+ years in construction and pools
Award
2021 SPASA National Gold, New Product
Licensed
QBCC licensed pool builder
Electronics
ESP32, Raspberry Pi, sensors
Software
Android, iOS, web, cloud
Making
CAD, 3D printing, TIG welding, casting
Based
Tamborine Mountain, Queensland, Australia
Time zone
AEST (UTC+10)

Common questions

Short answers to what people ask most, with a guide for each if you want the detail.

How much does it cost to build a prototype?

It depends on what the prototype has to prove. A CAD-designed, 3D-printed part sits at the low end of the price list above, a sensor device or small app in the middle, and a full hardware-plus-app product is a staged build quoted after a feasibility sprint. What drives prototype costs →

How much does a custom app cost for a small business?

A focused web tool or small business app is usually the lowest-cost option, and phone apps with logins, payments or a cloud backend cost more. Plan for ongoing hosting, updates and app store fees as well as the build. Custom app costs explained →

Does my idea need an app, hardware or both?

If it only organises information people type in, an app or web tool is usually enough. If it needs to read or control something physical, such as water levels, pumps or lights, it needs a device plus an app. How to scope an IoT product →

I have an invention idea. What should I do first?

Write it down, check what already exists, and keep it confidential. Talk to a registered patent attorney before you show it publicly, then prove the core idea works before paying for a polished prototype. What to do first with an invention →

Will you keep my idea confidential?

Yes. Everything you share about your project is treated as confidential, and I'm happy to sign a non-disclosure agreement before you share the details. Privacy policy →

Who owns the finished product, code and designs?

You do. When the project is paid for, you receive the code, CAD and design files. If a project runs on one of my reusable tools, that part is licensed to you, and the quote says so up front.

Can you finish a half-built app or Arduino project?

Yes. I start with a short audit of the code, wiring and accounts, then tell you whether rescuing it or rebuilding is faster and cheaper, with a fixed price either way. Finishing a stalled project →

Can you monitor tanks, pumps or equipment remotely?

Yes. Sensors can track tank levels, pumps, temperatures and power, and send alerts to your phone. On rural properties the main decision is the connection: Wi-Fi, 4G or long-range radio. Remote tank and pump monitoring →

What is private AI, and is it right for my business?

Private AI runs on hardware you own, so your data never leaves your premises. It suits businesses with sensitive information, repetitive document work or unreliable internet. For occasional general use, cloud AI is often simpler. When local AI beats cloud AI →

Should I license my invention or manufacture it myself?

Licensing earns royalties with less risk and capital, while manufacturing keeps more control and margin but needs money and time. Many inventors prove demand with a small run before deciding. Licensing vs manufacturing →

Do you work with clients outside Australia?

Yes. Design, CAD, apps, firmware and AI are delivered remotely, and physical prototypes are shipped internationally. Prices are listed in USD, GBP and EUR on the regional pages. US & international · UK · Europe

Have you built anything like this before?

Recent builds include a smart pool and spa controller, an interactive photo booth for a retail client, and BookForge, a writing app live on Google Play. Each has a full case study. Read the case studies →

Company details

For European clients who like to know exactly who they're dealing with.

Trading name
Wayward Vector
Legal entity
Leaky Finders Pty Ltd
ABN
15 643 730 723
Director
Luke Greenaway
Location
Tamborine Mountain QLD 4272, Australia
Email
contact@waywardvector.com.au
Privacy
Privacy policy, including GDPR

Contact

Tell me what you're trying to build.

I reply within one business day (Australian time). Prefer a video call? Mention it in your message and suggest a time.