Unified Computing

Custom Software Platforms

Platforms we designed,built and still run

Four custom software platforms, each taken from concept to production by our Brisbane team: a decision simulation engine, a music education publishing platform, a financial planning suite, and a personal safety wearable. Different industries, the same engineering discipline underneath.

Engineering behind these custom software platforms
  • Real-time collaboration
  • Simulation & calculation engines
  • Identity & access control
  • Subscription billing
  • Third-party API integration
  • Embedded & wearable software
  • Multi-tenant architecture
  • Cross-platform apps
The stack behind these platforms
QuickBooks
Platform
Web application
Sector
Decision analysis
Client
Nodian Pty Ltd
Live at
nodian.io
Scope
Architecture, build, ongoing development
Project 01

Nodian

Decision modelling and simulation platformVisit nodian.io ↗

Nodian lets people map a decision as a network of connected nodes and relationships, then run simulations across multiple linked models to see how outcomes move before they commit. It is the most technically demanding platform in our portfolio: a live calculation engine, an interactive modelling canvas and real-time multi-user editing all operating on the same shared state, without the model ever going out of sync.

Around that core we built the infrastructure that makes it a commercial product rather than a prototype: federated sign-in, granular project permissions, subscription billing, and a storage layer re-architected from single-user to full multi-tenant as the user base grew. The complexity is entirely in the engineering; on screen it stays simple enough to use in a meeting.

Custom software platforms we built: Nodian decision modelling platform with node canvas and live simulation panel

Modelling canvas

Node and connector graph editing with focus-area selection, driven by a custom interaction layer.

Simulation engine

Formula evaluation propagated across multiple linked models with live recalculation.

Concurrent editing

Real-time collaboration with shared state and conflict handling across sessions.

Access control

Invite and share logic with per-project roles and permissions.

Authentication

Google and LinkedIn OAuth, one-time passcode, and password recovery flows.

Commercial layer

Stripe subscriptions, plus migration to a scalable multi-tenant database.

Platform
Web store + content app
Sector
Music education publishing
Client
Supersonics Piano Pty Ltd
Scope
Storefront, membership, content delivery app
Project 02

Supersonics Piano & Plus

A print publisher rebuilt as a subscription platformVisit supersonicspiano.com ↗

Supersonics Piano is a piano-education publisher; Supersonics Plus is the content app its teachers and students work from in the lesson. We built both halves and the connection between them, so a customer buys a book or joins a membership on the web and the material appears in the app immediately, under the same account and without a second login.

The catalogue is deep: method books, collections, suites, ensembles, scales and technical work, exam repertoire and creative exercises, so the hard problems were entitlement and retrieval: who can see which title at which tier, and how a teacher finds the right piece mid-lesson. On top of that we added a studio zone where teachers publish their own uploaded material, and a content hub for approved third-party composers, turning a fixed catalogue into a platform other people contribute to.

Supersonics music education platform: web storefront synced to the teacher content app

Unified identity

One account spanning the storefront and the content app, with entitlements synced across devices.

Tiered entitlements

Guest, member and Pro access levels resolved per title across a large catalogue.

Content delivery

Structured library with search, bookmarks and favourites built for use during a lesson.

Studio uploads

Teacher-published material scoped privately to their own studio.

Contributor hub

Third-party composer content ingested and published under editorial approval.

Commerce

Product sales, memberships and recurring billing across print and digital lines.

Platform
Cloud application
Sector
Business & financial planning
Client
Levant Software Technology Pty Ltd
Scope
Development and ongoing engineering
Project 03

Planium Pro

Strategic planning with a financial modelling engineVisit planiumpro.com ↗

Planium Pro turns business strategy into a financial model: guided workflows take a user from objectives through to ten-year forecasts and automatically generated profit and loss statements. The engineering weight sits in two places. First, the integrations: live data drawn from Xero, MYOB and QuickBooks, which means handling three separate authorisation models and chart-of-accounts structures and normalising them into one consistent model, so forecasts start from real figures instead of re-keyed ones.

Second, document generation: producing client-ready, fully editable reports in Word and PDF from live plan data, reliably enough that an advisor can send the output to a client without touching it. It ships in two configurations, a full professional version for advisors and a lighter one for individual operators, from a single codebase.

Custom software platforms we built: Planium Pro financial planning software showing a ten-year forecast, P&L and accounting integrations

Forecasting engine

Ten-year projections with automated P&L generation from plan inputs.

Accounting integrations

Authenticated data import from Xero, MYOB and QuickBooks, normalised to one model.

Collaboration

Multi-user, real-time editing of a shared plan across an advisory team.

Report generation

Editable .docx and .pdf output rendered from live plan data.

Benchmarking

Comparison of a plan's figures against industry reference data.

Product tiering

Professional and Lite editions served from one codebase.

Platform
Wearable device + companion app
Sector
Personal safety
Client
DJS Solutions Pty Ltd
Scope
Proprietary device software and platform
Project 04

Trakalarm

Personal safety smartwatch softwareVisit trakalarm.com ↗

Trakalarm is a personal safety smartwatch, and the proprietary software that makes it more than a fitness tracker is ours. A single button press fires four things at once: a loud onboard alarm, the wearer's GPS position, a pre-set message to every stored emergency contact, and a live audio and video stream to all of them, with no paired phone in the loop.

A companion remote-access capability lets a nominated contact activate the wearer's location and audio/video from their own handset, which is what makes the device useful for families with young children or people with disability. Doing all of that on constrained wearable hardware, on battery, over mobile networks, in the seconds when it actually matters, is a different discipline to web engineering, and it was delivered alongside firmware and manufacturing partners as a single integrated product.

Trakalarm personal safety smartwatch SOS alert with companion app live stream and location

Single-action trigger

Alarm, GPS, messaging and live streaming initiated simultaneously from one press.

Standalone operation

Full functionality on the device itself, with no paired smartphone required.

Live A/V streaming

Real-time audio and video pushed to multiple stored contacts at once.

Location dispatch

GPS position delivered as a mapped location alongside a pre-set SMS.

Remote activation

Contacts can initiate the wearer's location and A/V feed from their own phone.

Hardware integration

Software delivered against firmware and manufacturing partners on production hardware.

The common thread

Concepts that became custom software platforms

Every one of these custom software platforms started as someone's concept and ended as production software with paying users on it. We do the architecture, the build and the long-term engineering, and we stay on after launch, which is the part that decides whether a platform holds up.

Talk to us about yours

Architecture first

Multi-tenant data models, calculation engines and access control designed before the first screen.

Commercial from the start

Billing, tiering and entitlements built in, so the product can sell the day it launches.

We stay on

Three of these four platforms are still in active development with us years after launch.

For founders and first-time product owners

Turning an idea into a real platform

The questions we get asked most often by people planning custom software platforms who have never built software before.

With a conversation, not a document. You describe what you want the thing to do and who it's for; we ask the questions that turn that into scope. Every platform on this page started that way. None of our clients arrived with a specification. If you can explain it to a friend, you can explain it to us.

No, and it's usually better if you haven't. The parts founders pre-decide are often the parts we'd build differently, and locking them in early just costs money to unpick. Bring the problem and the business model; leave the architecture to the first workshop.

It depends almost entirely on how much of the product has to exist at launch. The honest answer is that we scope a first release deliberately small (the smallest version that a real customer would pay for) and quote that as a fixed piece of work, then build from there. You'll have a firm number before anything starts, and we'll tell you if your budget and your ambition don't match yet.

Start small, always. Nodian and Supersonics both launched with a fraction of what they do today, and what got built second was decided by what real users did with the first release rather than what anyone assumed in a planning meeting. A big launch is mostly a big guess.

You do. Your accounts, your repositories, your IP, documented and handed over. We've had clients take builds in-house and clients get acquired, in both cases the handover is a normal process, not a negotiation.

That's the work we're best at. A live simulation engine with multi-user editing on shared state, ten-year financial forecasting from three different accounting APIs, audio and video streaming off a battery-powered wearable. Those are the four projects on this page. Technically hard is not the same as risky, provided it's architected before it's coded.

Yes, and sometimes the answer is no. Some ideas are better as a service with a spreadsheet behind it until the demand is proven. We'd rather tell you that in the first call than take payment for a build that shouldn't exist yet.

Often, yes, usually with us owning architecture and the hard components while your team handles delivery and front-end work. We'll also audit an existing build honestly, including telling you when the right answer is to keep what you have.

That's the part most founders underestimate, and it's why we stay on. Three of the four platforms here are still in active development with us years after their first release. Launch is when the real requirements finally show up.

Sooner than a full build. We'll usually get you a working slice of the real product (not a clickable mockup), because a thing that actually runs is far more persuasive in a funding conversation than a prototype that only survives a scripted demo.

Tell us what you're building

Whether it's a concept on a whiteboard or a platform that has outgrown its build, send us the shape of it. We build custom software platforms for founders and businesses across Brisbane and Australia, and we'll tell you what it takes to get to production, and whether we're the right team for it.

Free scoping conversation, no spec required
Architecture advice even if you don't engage us
Long-term engineering, not a hand-off at launch
Prefer to talk? Call 1800 931 982 or reach us here

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