Shop Manager Lite is the software Jacob wrote for his own bays at Nunez Performances & Repairs — a solo performance-and-repair shop. It exists because renting shop software forever felt wrong.
Nunez Performances & Repairs is a one-man shop: performance builds and upgrades on one side, brakes-and-diagnostics bread and butter on the other. The owner, Jacob, runs every bay, writes every estimate, and chases every unpaid invoice himself.
When he went looking for shop software, the options were $150–300 a month, every month, forever — with his customers' data on someone else's cloud. The alternative was the old way: paper estimates, totals in his head, and a box of receipts that never quite matched the bank.
So he built his own. One price. Runs on the shop PC. Data stays in the building. Shop Manager Lite is that tool, cleaned up so any other shop can run on it too.
"I priced the big platforms and couldn't justify renting software forever. So I built what I actually needed — pay once, runs on my machine, and the data is mine."
— Jacob, owner, Nunez Performances & RepairsThe dyno tools aren't there because every shop has rollers — they're there because Jacob wants the path into performance work to be shorter. If you're a tech going out on your own, a tuner picking up customers, or a small shop adding builds to daily repair work, this is meant to be the small, easy base you start from.
Import a pull CSV (Virtual Dyno, Dynojet, Mustang Dyno…) and get the real HP/torque curve with peaks marked. Before/after bars from your baseline and final figures.
Print a clean baseline/final/gain sheet with your shop name across the top — the paper customers pin up in the garage.
Good/Better/Best estimates fit staged builds naturally — Stage 1/2/3 with prices and what's included, on one printable sheet.
Engine code, induction, drivetrain and transmission live on the job card, with real vehicle photos and a specs library that fills itself in.
The builds pay the passion; the brake jobs pay the rent. Both live in the same ledger: estimates and invoices, VIN decode and recalls, scheduling with Google Calendar, inventory, P&L and tax report, tire hotel.
Same app in all three editions — bought once, yours for good.