Rail Logic
We see what you stopped noticing
Custom applications for the people who run the place

I build the systems businesses actually run on.

The unglamorous kind: what gets baked, where an order is, what the shelf should hold on a Tuesday. I work alone, I ship to people who will tell me at five in the morning when something is wrong, and everything on this page is running somewhere.

Most of it came out of one shop. A family-run bakery in Miami kept asking for one more thing, and eighteen months later it was an operating system.

  1. Nov 2025“We need to sell online.”Storefront→
  2. Feb 2026“The kitchen can’t keep track of what to make.”Tablet + paired display
  3. Apr 2026“The counter staff don’t upsell.”Store Boss, on iOS→
  4. Jun 2026“We’re baking the wrong things.”Production planner→
  5. Jul 2026“Where is that order?”Order desk→
  6. Jul 2026“We keep running out of butter.”Supplies list→
  7. Aug 2026“We can’t see any of it at a glance.”Wall display→
On the wall · speaks aloudWhat’s open, what’s in the oven, what has run below floor. Eight panels set up the way this shop reads them. The clock and the weather are really Miami, right now; the rest is sample data.
bottom — empty
Eight things worth knowing before seven in the morning, on one screen you can read from across the room. Drag a panel — every shop wants them somewhere else.

Set it up the way you’d want it — move a panel and the wall follows →

Try one · no sign-inA slice of Store Boss, the native iOS app the counter staff train on. Six customers, about a minute.
Total sales
$0
Expected tip
$0.00
Heat
0
Loading shift…

Setting up the counter…

A working slice of Store Boss, a native iOS app built and shipped for the counter staff at Reysy’s. Scenarios, grading rules, coaching text and tip maths come across from it unchanged. A shift here is six customers instead of fifteen, with the verdict thresholds scaled to match.

What each one does

Three of them you can operate here. The logic is lifted from the systems running in the shop; the numbers are sample data, because a shop’s sales figures and customer records are not mine to publish. The way to judge any of it is to open one and try to break it.

The rest of the work

Everything above came out of one shop. These two did not.

The real tool — the live system, runningReal logic · sample data — the same system, invented numbersSeparate venture — lives on its own site

About

The bakery is not my business. It is a family-run shop, and each system had to earn the next one before anybody asked for it.

What changed for them: they know what to bake before they bake it. Orders stop getting lost between the counter and the oven. Nobody has to remember to move a card on a board. The shelf says when it is running low, out loud, while there is still time to do something about it.

Every one of these started as something somebody said out loud in a shop. If you have that kind of problem — a thing your people carry in their heads, on paper, or not at all — that is the work I want.