FieldOS, Part 1: I Built the Core System and Timed Every Single Hour

A while back, I built a complete field service management platform for the first time. It worked. But building it taught me as much about what I'd do differently as it taught me about field service software itself. So I built it again — FieldOS — the way I'd build it now, with everything I picked up the first time around. And this time I tracked every real hour it took, start to finish. Not to hit a deadline. To finally answer a question I'd always guessed at before: how much time does a project like this actually take, and what is that time genuinely worth to the business paying for it? I do maintenance for a car dealership, an auto parts warehouse, a body shop, and five parts stores in my day job, so I've seen firsthand what off-the-shelf field service software costs a business — and how much of it a smaller crew never touches. FieldOS is built so a business only pays for the pieces it actually needs. But the real question underneath this series isn't what to charge. It's how to price custom work in a way that's honest about what the work is worth, without pricing a small business out of getting it built at all. This series is that experiment, told through the build itself. How the Core System Works Every field service business needs the same five things to run day to day, no matter what they fix or deliver. This is the part of FieldOS nobody gets to skip — the foundation every add-on plugs into later in this series. A Front Door for Every Job: A request comes in, gets logged, and moves through a status list a business defines for itself — not a fixed workflow some software vendor decided everyone needs. A body shop's process doesn't look like an HVAC crew's, so the system shouldn't force them into the same one. Real Parts Tracking: Every part or supply used on a job gets logged against real stock at a real location, and the system flags it automatically the moment something drops below what a crew needs on hand — not after a technician shows up to an empty shelf.