Building a 4-role real-time SaaS taught me one uncomfortable lesson: the hard part was never the code.

I've been building RestaurantOS — one platform connecting Owner, Kitchen, Waiter, and Cashier in a single live workflow (Table → Order → Kitchen → Serve → Billing → Reports).

The tech stack was the easy part. The real challenge: keeping 4 different roles in sync in real time without any of them stepping on each other's data — a waiter updating a table while the kitchen marks an item ready while the cashier is mid-billing.

That forced decisions most tutorials never cover: ⚡ How much state should live client-side vs. source-of-truth server-side ⚡ What "real-time" actually needs to mean per role (a kitchen screen needs sub-second updates, a report dashboard doesn't) ⚡ Designing failure states — what happens when the waiter's app loses connection mid-order

Currently redesigning the UI/UX layer too (motion, better visual hierarchy) while keeping this real-time core intact.

🔗 nirvaantech.in

If you've built multi-role or real-time systems — curious what broke first for you. And if you're a founder who needs something like this built, my DMs are open.

the role based flow is easy to follow. what part was hardest to keep real time?

I conceptualized and engineered this interactive manuscript recovery interface for Palimpsest Lab .

The build bridges the gap between archival scholarship and technical UI, pairing classical book typography with real-time multispectral simulation. Crafting a live wavelength scrubber that sweeps from 365 nm ultraviolet fluorescence to 940 nm infrared; letting visitors uncover an erased fifth-century Greek geometry treatise hidden beneath a medieval Latin prayer book; turned scientific telemetry into a hands-on story where every control has a clear, functional purpose.