JuneBay 's Work | ContraWork by JuneBay JuneBay
I add AI to how your business works · 30 years in software
Delivery route planner for New York, on real road distances
Give it an address list and drivers. It assigns the stops and orders each route by road distance. In our test run on 78 sample New York addresses the solver finished in 4.0 seconds with no stop left unassigned. Dispatch rules (closest first, balanced load, zone focus) are settings, not code.
Live demo link available on request. Community board with a built-in ad system
A working proof of concept that combines a community board with an in-app ad system. Advertisers run campaigns with several creative formats, and impressions and clicks are tracked on an advertiser dashboard. Built with Next.js and Supabase.
Live demo at adboard.macrobay.kr (https://adboard.macrobay.kr) Real-time AI speaking coach
A speaking practice app. The learner talks, an AI coach answers in the target language, and the reply is read aloud. English is live now, and the same engine is built to take other language pairs.
Live demo at speak.macrobay.kr (https://speak.macrobay.kr) (best on a desktop browser) Real-time auction backend with live bidding, wallet ledger and audit log
Backend for a live used-car auction. OTP sign-in, real-time bidding over WebSockets, a wallet ledger, role-based access and an audit log, with public API documentation. Fastify, TypeScript, PostgreSQL and Redis.
Live demo at autoauction.macrobay.kr (https://autoauction.macrobay.kr)