03/29/2026
Most fleets are still run on spreadsheets, paper DVIRs, and gut feel - and it’s getting expensive. Missed inspections, invisible fuel costs, and reactive maintenance can easily add up to thousands of dollars per vehicle each year.
We just shipped Fleet OS(Fleet Management Software), an open‑source, self-hostable fleet maintenance and management platform built on Elixir/Phoenix and PostgreSQL, designed for real-time operations across web and mobile.
In this new guide, we break down:
1: The 6 core modules modern fleet software actually needs (vehicles, DVIR, work orders, fuel, parts, renewals)
2: How we support 75+ vehicles per deployment with sub‑100ms real-time dashboards and 200+ concurrent users via Phoenix LiveView
3: When to build custom vs buy off‑the‑shelf (and why SaaS can hit $150,000/year at 500 vehicles)
4: How one platform brings DVIR compliance, fuel analytics, and maintenance audit trails into a single operational view for every fleet manager
If you manage 50-500 vehicles and are thinking about building your own fleet platform (or escaping per‑vehicle SaaS pricing), this carousel walks through the architecture, economics, and real results from Fleet OS.
👉 Dive into the full story:
Blog: https://ortemtech.com/blog/fleet-management-software-development-guide
For more visit: https://ortemtech.com/
