Personally Built & Shipped

Products

Live

Point of Sale · 2026

SIM — Gym Edition

SIM (Sales and Inventory Management) built for gyms — a desktop point-of-sale and membership platform with NFC check-in, subscriptions and packages, staff attendance, retail/cafe checkout, and financial reporting, all running offline on hardware I control.

Used By

AC Fitness
NestJSAngularElectronPostgreSQLNFC
Full Changelog →
Beta

Point of Sale · 2026

SIM — Retail Edition

SIM (Sales and Inventory Management), generalized for retail — a white-labeled, multi-branch POS forked from the gym edition in under three weeks, with purchasing, suppliers, loyalty, commissions, and offline-first checkout, hardened with a ~790-test backend suite.

Used By

LCS
NestJSAngularElectronPostgreSQLclass-validator
Full Changelog →

In Progress

More products in the pipeline. Building in public when they're ready to show.

Open to contracts

Need something custom built?

If a product like this is close to what your business needs — a POS, an internal tool, a white-labeled platform — I can build it from scratch or adapt one of these. Let's talk about what you're trying to solve.

Get in Touch →