CUSTOM SOFTWARE & SYSTEMS MODERNIZATION
Small platforms, real integrations and a real interface, built for businesses like yours, where one good engineer changes the trajectory.
You're probably here for one of these three reasons.
A spreadsheet two of your people maintain has become your system of record. Nobody can change it safely, and the whole business depends on it.
What we'd build →Software that came with a parent organization, an acquisition or a vendor who has moved on. It technically works, but it doesn't fit how you operate.
See our work →You've looked at the off-the-shelf options. None of them match how you work, and the workaround has become the process.
See a platform we built →WHAT WE DO
Most engagements start with one of these and grow into another.
01
The core of what we do. An application built around how your operation runs, with a proper data model, the integrations it needs and an interface your team will want to use. Usually it replaces a spreadsheet you've outgrown or a tool that never fit.
02
Systems you inherited rather than chose. We look at what you have, keep what still earns its place and move you off what doesn't. Your business keeps running while we do it.
03
Connecting the systems you already pay for, so nobody on your team has to copy data between them. CRM, accounting, point-of-sale and scheduling, including vendors whose APIs make it deliberately difficult.
04
We stay on afterward as the engineer you can call. You get a standing block of hours each month for changes, fixes and the steady stream of small things that come with running software.
SELECTED WORK
The tool we run every engagement in, and the one that built itself. Now a product other teams and agencies use.
Nothing off the shelf ran a cigar lounge, so we built the platform: membership and events, locker tracking, point-of-sale integration, a vendor marketplace and per-venue branded sites. It's our own product, so we can show you every layer, including the decisions we reversed.
A budgeting app we built when Simple shut down and its customers lost the features they relied on.
A renovation estimating and ROI tool for Carefree Construction, used to model more than 1,000 properties.
A Backstage developer portal and an AI development harness for a Fortune 500 engineering organization.
HOW WE BUILD
Every project runs in onMain, the product we build. Your plan, the decisions behind it and the work in flight are written down in one place you can log in to.
When something changes, you can see what changed, the card it came from and why we did it that way.
See how we work →No account managers and no handoff to a junior team once the contract is signed. The person who scopes your project is the person who builds it.
Version control, testing, documentation and a proper handover. You get the discipline of a large shop without its overhead or its timeline.
We stay small on purpose. That's why you get real attention, and why we'll sometimes tell you we're not the right fit.
Half an hour, no charge. You describe the problem and we tell you honestly whether we're the right fit and roughly what it would take.
You get fixed deliverables, a fixed price or a clear rate and a list of what's out of scope, all before any money changes hands.
You see working software every week, not a status report. Course corrections are cheap when you catch them early.
The documentation, repositories, accounts and infrastructure are all yours. If you want to bring it in-house later, you can.
A half-hour conversation, no charge and no pitch. If we're not the right fit, we'll say so and point you somewhere better.