DeFlock

Crowdsourced tool for locating and reporting ALPRs. View Live Site.

Purpose

I created this project after noticing the mass deployment of ALPRs in cities, towns, and even rural areas in the recent years. It's a massive threat to privacy, and this projects helps shed a light on this issue as ALPRs continue to be deployed to thousands of cities across the US and possibly beyond.

What it Does

View ALPRs on a Map

Uses OpenStreetMap data to populate a map with crowdsourced locations of ALPRs, along with their type and direction they face.

The map has become a separate repository, deflockhopper_maps.

Report ALPRs

Provides instructions for using the DeFlock App or OpenStreetMap's iD web editor to report ALPRs using a standardized tagging system.

Identify ALPRs

A constantly-growing repository of ALPR makes, models, and tagging instructions for OpenStreetMap, along with images for identifying them.

Tech Stack

Backend

• TypeScript
• Fastify API server
• Cloudflare R2 for ALPR points and vector tiles
• OpenTelemetry

Cloud

• AWS Lambda (for region segmenting [deprecated] and counts)
• AWS S3 - phasing out for R2
• AWS ECR
• Cloudflare as DNS + Proxy
• Directus CDN
• Zammad helpdesk

Frontend

• Vue3
• Vuetify
• MapLibre GL
• Vue Leaflet [deprecated] - phasing out for MapLibre GL

Services

• OpenStreetMap - Overpass API, Basic Map Tiles [deprecated]
• Nominatim - Geocoding

Development

Requirements

• bun

Running Frontend

1. cd webapp
2. bun i
3. bun dev

Running Backend

1. cd api
2. bun i
3. bun dev

Contributing

We welcome contributions from anyone. Here's how you can help:

How to Contribute

1. Fork the Repository
2. Make Your Changes
3. Open a Pull Request against This Repo