Architecture & implementation plan

How it's built.

Self-Hosted · License-Independent · API-First · LLM-Integrated

A fully self-hosted geospatial infrastructure built on open-source software. The stack is intentionally lean, reproducible, and portable — all outputs are exportable and deployable to external platforms without licensing restrictions.

Hardware

Server

Model	Lenovo ThinkCentre M90n-1 (Type 11AD)
Processor	Intel Core i7-8665U vPro (4-core / 8-thread)
Memory	16 GB DDR4-2666
Storage	512 GB NVMe PCIe SSD
Network	Wired Gigabit Ethernet
OS	Ubuntu Server 24.04 LTS

Network

TP-Link TL-SG105 (Gigabit switch)
Campus LAN → Switch → Server + Workstation

Software stack

Data layer	PostgreSQL + PostGIS
Tile serving	pg_tileserv
API layer	FastAPI
Web server	Caddy
Frontend	MapLibre / Leaflet

Objectives

Eliminate proprietary dependencies
Enable unrestricted publishing
Centralize spatial data
Support multi-user workflows
Expose spatial APIs
Ensure portability

Capabilities

Data & GIS

Concurrent editing via PostGIS MVCC
Spatial indexing (GiST)
Scales to large datasets

Web & publishing

Static + interactive maps
Vector tile serving
Storymap-style publishing

AI & LLM integration

Nearest feature queries
Radius queries
Bounding box queries
Containment queries

Architecture

PostGIS → FastAPI / pg_tileserv → Caddy → Browser (MapLibre / Leaflet)

Implementation plan

Infrastructure Multi-user GIS Web & tiles API Basemap Export Public access

Key properties

Self-hosted Multi-user License-independent API-first LLM-integrated Portable Reproducible