Technology

• FastAPI and Pydantic: the HTTP API, request and response validation, and the OpenAPI schema the frontend client is generated from
• SurrealDB: documents, graph edges and vectors in one database, embedded or as a server (why)
• Word search: SQLite FTS5 (standard library) by default, or an optional OpenSearch cluster (Database)
• py_webauthn: passkeys, the default way to sign in (passwords are off on fresh installs); PyJWT: short-lived access tokens; scrypt (standard library) for passwords where they're on; cryptography (AES-GCM) for credentials stored in the database
• rdflib: the archive as RDF (Dublin Core) for export, import and SPARQL (RDF)
• OpenTelemetry: opt-in traces and metrics over OTLP/HTTP (Telemetry)
• llama.cpp: llama-server runs a GGUF chat model on the server itself (Local models)
• Next.js (App Router) with Auth.js / NextAuth v5 for the browser session
• @hey-api/openapi-ts: the typed API client; Zod for form validation
• shadcn/ui and Tailwind CSS
• BlockSuite: the notes editor; @xyflow/react: the canvas pipelines and workflows are drawn on
• Leaflet (BSD-2-Clause): the Library's map of where assets were taken, on XYZ tiles from Settings → Maps (OpenStreetMap's by default), loaded only when the map is opened
• Processing: ffmpeg, SenseVoice / faster-whisper / mlx-whisper, SpeechBrain ECAPA voiceprints, optional pyannote, Tesseract / Apple Vision / RapidOCR, OpenCV YuNet + SFace, ONNX models on ONNX Runtime (YOLOX objects, RapidOCR), rclone for remote storage, Jinja2 (sandboxed) for templates
• Nx (monorepo tasks and CI, local cache only), uv, pnpm, Ruff, mypy, ESLint, pytest, Jest, Docker Compose, pre-commit, mkdocs-material