Open Source Licenses
Last updated: 2026-04-26
Konduit is built on open source software. We're grateful for the maintainers and contributors of every
library, framework, and tool listed below. The full curated list is in our public source repository at THIRD_PARTY_LICENSES.md.
Frontend (web app)
The Konduit web application is built with SvelteKit (MIT) and Vite (MIT). Notable runtime libraries:
- keycloak-js (Apache-2.0) — OIDC client
- Leaflet (BSD-2-Clause) — interactive maps
- Zod (MIT) — runtime validation
- zxcvbn (MIT) — password strength
- Paraglide (Apache-2.0) — i18n
- Tabler Icons (MIT) — icons
Backend (API)
The API is built on Python ≥3.12 and FastAPI (MIT). Notable runtime libraries:
- SQLAlchemy (MIT) — ORM
- asyncpg (Apache-2.0) — async PostgreSQL driver
- Celery (BSD-3-Clause) — distributed task queue
- Pydantic (MIT) — data validation
- ONNX Runtime (MIT) — ML inference
- Pillow (HPND) — image processing
- WeasyPrint (BSD-3-Clause) — PDF generation
Infrastructure
- PostgreSQL 16 + PostGIS 3.4 — database
- Valkey 8 (BSD-3-Clause) — cache + Celery broker
- Keycloak 24 (Apache-2.0) — identity
- nginx (BSD-2-Clause) — reverse proxy
- Uptime Kuma (MIT) — monitoring
AI defect detection
Konduit's AI inspection assistant uses a YOLOv8s model trained on merged sewer-defect datasets under CC BY 4.0 attribution. The trained model weights are distributed as ONNX. Attribution and dataset details are in the AI Act classification document.