one domain, two AI builders

LocationHub

2026

A multi-tenant B2B SaaS with an embeddable, map-based front end.

For businesses that need a location finder on their own site. Each tenant manages its locations, imports them from CSV and embeds a map widget. Two AI builders built it, split by an architecture spec.

LocationHub: UI and backend built by different AI tools, joined at one boundary

screens

Hosted store locator: searchable list, clustered map pins and a store panel with opening hours

The same locator embedded as a widget on a sample retailer's own site

CSV import check: new, updated and unchanged rows, with row-level errors that are skipped before publishing

key decisions

ports and adapters

Geocoding, maps and file parsing plug in through adapters, with one shared test suite every provider must pass.

embeddable

A standalone widget with CSS isolation, safe to drop into any site.

large datasets

Paging and progressive loading, so admin and locator handle thousands of locations.

defence in depth

Tenant isolation tested, public endpoints rate limited.

where ai comes in

ai in the build

›Split ownership, an AI app builder on the UI and Claude Code on the backend, with the architecture spec as the contract between them

stack

tanstack startreacttypescriptdrizzlepostgresmaplibrezod