# ADR-001 — Technology Stack

## Status
Accepted for V1.

## Context
GeoIntel Kempen must demonstrate modern web development, geospatial processing, and GeoAI engineering. The stack must be realistic for a portfolio project while remaining close to professional workflows.

## Decision
Use:

- Frontend: React + TypeScript.
- Map UI: MapLibre GL with Deck.gl where advanced overlays are useful.
- Backend: FastAPI.
- Database: PostgreSQL + PostGIS.
- Processing: GeoPandas, Shapely, Rasterio, PyProj, GDAL-compatible tools.
- AI: PyTorch with Ultralytics YOLO first; SAM/segmentation later.
- Jobs: Redis + RQ for V1.
- Storage: local filesystem with explicit storage abstraction.

## Consequences
This stack keeps the first build achievable while matching the vacancy profile closely: Python, raster/vector processing, computer vision, AI pipelines, and GIS outputs.

## Non-goals
Do not introduce Django, Flask, MongoDB, Firebase, or a second frontend framework unless a future ADR explicitly replaces this decision.