# apps/pos — POS Counter (Electron + React)

The counter shell. Lands with the Phase-0 hardware spike (ESC/POS printing, drawer kick,
wedge scanner, scale). It is deliberately thin: billing math lives in
`@sims/billing-engine`, scan handling in `@sims/scanning`, login/PIN/gates in
`@sims/auth`, settings/messages in `@sims/config` — all already built and tested.
Screen specs: docs/09-UX-FLOWS-AND-MENUS.md §1.