Acknowledgements
The open-source work Luz Photo and this site are built on.
GeoNames
Place names — city, region and country — are worked out entirely on your own Mac from a bundled list of towns and cities. Nothing is ever looked up online.
That list comes from the GeoNames geographical database, used under the Creative Commons Attribution 4.0 International licence.
GRDB.swift
The SQLite toolkit Luz Photo uses for its local library database.
On-device search models
Luz’s bundled local search package combines TIPSv2 B/14 for semantic image and text retrieval, BLIP ITM Base COCO for bounded visual verification, GTE multilingual reranker base for factual-language evidence, and AuraFace v1 for the separately governed local People feature. The package runs on your Mac and includes its full third-party notices.
Swift packages
The current app ships notices for EventSource, GRDB.swift, libwebp-Xcode, Swift ASN.1, Swift Collections, Swift Crypto, swift-huggingface, swift-jinja, swift-transformers, and yyjson. Their exact pinned versions, upstream sources, and full licence texts are included in Luz’s in-app third-party notices.
libwebp
Google’s WebP encoder, which is what makes WebP available as an export format.
fflate
A small DEFLATE decompressor. It supports older shared-collection links whose manifest is carried inside the link itself.
Typefaces
This site uses Apfel Grotezk. It is served from this domain — no font request leaves for a third party, so no visitor’s IP address reaches one.
Apple frameworks
Image analysis, text recognition, rendering and playback are done with Apple’s own frameworks — Vision, Core Image, ImageIO, PDFKit, AVFoundation and Quick Look — running on your Mac. On supported Macs, Foundation Models can help name collections and structure a search query; those are Apple’s on-device system models.