Washlook
Complete point-of-sale, order tracking, inventory management, thermal receipt printing, and analytics—all in one powerful platform. Seamlessly manage multiple branches from a single platform.
Tanstack Start
Better Auth
Postgres
Redis
Dokploy
Digital Ocean
Cloudflare
Key Features
- •Point-of-sale checkout built for fast, high-volume counter transactions
- •Order tracking from drop-off to pickup across multiple branches
- •Inventory management with low-stock alerts
- •Thermal receipt printing integration
- •Branch-level analytics and reporting from a single dashboard
Challenges & Solutions
Problem
Shop owners needed to add staff on the spot without requiring each one to have an email address — the standard signup flow assumes an email-verified account, but waiting on an invite round-trip breaks onboarding at a busy counter.
Solution
Built a second onboarding path alongside the standard email-invite flow, via a custom Better Auth plugin (pin-auth.ts):
- •createUserDirectly calls Better Auth's internal adapter directly to create a user row without a password or verification email — bypassing the public sign-up API entirely. Since Better Auth's user.email is a required unique column, it fabricates a synthetic per-org email (name@{org-slug}.local) just to satisfy the constraint, with a numeric suffix on collision.
- •A 4-digit pin field was added to the org plugin's member schema (a supported extension point), unique per organization.
- •signInWithPin is a separate authentication mechanism entirely — org slug + PIN, resolved against member.pin, minting a session directly through the internal adapter instead of Better Auth's credential verification.
- •Staff access this via a shareable slug URL / QR code pointing at a PIN-entry page, so an admin can add someone on the spot and hand them a PIN instead of waiting on an email round-trip.
Gallery
