Technical★ Best WorkActive Development

Alpha Nurseries Platform

Native plant finder for wholesale buyers and restoration professionals: React/MapLibre UI, Express/GraphQL API, PostGIS spatial queries, PMTiles maps, and a Python data pipeline.

Why This Matters

This turns plant-range and nursery data into a buying workflow: browse 189 native species, filter by wetland and wildlife traits, check county ranges, build lists, export, and request quotes.

Jun 2026

Last Updated

Private

Repository

Proof packet

Evidence Dossier

Thesis

A working native-plant buying tool that joins county-scale distribution data to the daily workflow of nursery buyers and restoration professionals.

The repository is private. This page includes aggregate counts, a system diagram, and test results; it excludes credentials, customer data, and raw source datasets.

189species

Curated species

115,470county-species mappings

Distribution records

3,235US counties

County coverage

28/28browser scenarios

Quality gate

The June 20, 2026 gate also passed 1,503 frontend and backend unit tests.

Screenshots

Alpha Nurseries architecture flow from React and MapLibre through Express and PostGIS — React and MapLibre serve the buying workflow; Express, PostGIS, and the GIS pipeline handle product and range data.

Evidence

Buying workflow

README.md and AGENTS.md

Buyers and restoration professionals can discover native species by county and ecological trait, assemble plant lists, export them, and request quotes.

Browse mode combines search, filters, species detail, list building, and export.
Location mode returns native species for a clicked or entered county.

System and evidence

README.md, architecture guide, and June 20 quality gate

The application couples a PostGIS product model with inexpensive PMTiles map delivery and a tested full-stack workflow.

Core sources include USDA PLANTS and E.L. Little's Atlas of United States Trees.
PMTiles keeps map delivery static and inexpensive while PostGIS handles spatial queries.
Browser scenario batch: 28 passed, 0 failed.

Source Links

README technical specificationPrivate repository source for data counts, stack, and test matrix.

Architecture guidePrivate repository source for system design and trade-offs.

Scenario quality gatePrivate repository source for browser, unit, type-check, and build evidence.

Technology Stack

Express.jsGraphQLReact 19PostGISML EmbeddingsDocker

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Alpha Nurseries Platform

Native plant finder for wholesale buyers and restoration professionals: React/MapLibre UI, Express/GraphQL API, PostGIS spatial queries, PMTiles maps, and a Python data pipeline.

Why This Matters

This turns plant-range and nursery data into a buying workflow: browse 189 native species, filter by wetland and wildlife traits, check county ranges, build lists, export, and request quotes.