BarOptima Pro

Full-stack — optimization engine, desktop shell, auth/quota, and workshop UX.

DeliveryTauri desktop

SolversBFD + Gilmore–Gomory

Walkthrough4 min demo

Overview

Structural steel shops lose money on scrap when cut lists are planned by hand. BarOptima Pro ingests a bordereau (manual entry or CSV/XLSX), runs industrial cutting-stock optimization per diameter—with kerf, trim, and reusable offcut rules—and returns bar layouts, pattern summaries, weight and cost KPIs, plus workshop views: schedule table, 2D calepinage, Three.js 3D visualizer, analytics, and chute inventory. A FastAPI engine implements Best-Fit Decreasing for bent shapes and chute consumption, and Gilmore–Gomory column generation for straight runs, with Supabase-backed trials, subscriptions, and multi-vector anti-abuse (device fingerprint, IP velocity, disposable email blocklist). The same React/Vite UI ships as a Tauri desktop build with frameless chrome, local SQLite history, and optional web deploy (Vercel + Render).

Engineering highlights

Cutting-stock solvers: BFD with chute priority for bent/equerre pieces; Gilmore–Gomory with BFD fallback
Stock physics: kerf and trim allowances, min usable offcut threshold, kg/m weight and cost-per-kg metrics
Chute lifecycle: consume workshop offcuts in runs, persist new offcuts, cascading dependency analysis on recalc
Workspace modes: bordereau editor, 2D diagrams, 3D bar visualizer, statistics dashboard, stock management
Exports: Excel workbooks and React-PDF cutting schedules for the shop floor
Auth & monetization: Supabase session, quota reservation RPC, admin portal, receipt upload lockout flow
Tauri desktop: custom title bar, hardware device ID for quota binding, SQLite via tauri-plugin-sql

Tech stack

ReactViteFastAPITauriSupabase