Open-source acknowledgements
CHERT Atlas is built and operated by CHERT on open-source software.
Each component below is the work of its own authors and is used under its own licence. CHERT claims no authorship of it. Product names and trademarks belong to their owners; their use here identifies the software and does not imply affiliation or endorsement.
The platform components run unmodified on CHERT's own infrastructure and are not distributed to users.
Platform components
| Component | Version | Licence | Copyright |
|---|---|---|---|
| PostgreSQL | 17.11 | PostgreSQL | © The PostgreSQL Global Development Group; © The Regents of the University of California |
| OpenSearch | 3.9.0 | Apache-2.0 | © OpenSearch Contributors (includes Apache-2.0 software developed by Elasticsearch) |
| Keycloak | 26.8.0 | Apache-2.0 | © Red Hat, Inc. and/or its affiliates and other contributors |
| NATS Server (JetStream) | 2.15.0 | Apache-2.0 | © The NATS Authors |
| SeaweedFS | 4.48 | Apache-2.0 | © Chris Lu and SeaweedFS contributors |
| Caddy | 2.11.7 | Apache-2.0 | © Matthew Holt and The Caddy Authors |
| dbt Core / dbt-postgres | 1.12.5 / 1.11.0 | Apache-2.0 | © dbt Labs, Inc. |
| Great Expectations | 1.23.2 | Apache-2.0 | © The Great Expectations Team |
| OpenJDK | 21.0.12 | GPL-2.0-only WITH Classpath-exception-2.0 | © Oracle and/or its affiliates and the OpenJDK contributors |
| Python | 3.12.3 | PSF-2.0 | © Python Software Foundation |
Application libraries
| Component | Version | Licence | Copyright |
|---|---|---|---|
| FastAPI | 0.118.3 | MIT | © Sebastián Ramírez |
| Starlette | 0.48.0 | BSD-3-Clause | © Encode OSS Ltd. |
| Uvicorn | 0.37.0 | BSD-3-Clause | © Encode OSS Ltd. |
| httpx | 0.28.1 | BSD-3-Clause | © Encode OSS Ltd. |
| Pydantic | 2.13.5 | MIT | © Pydantic Services Inc. and individual contributors |
| psycopg2 | 2.9.10 | LGPL-3.0-or-later | © Federico Di Gregorio, Daniele Varrazzo, The Psycopg Team |
| boto3 / botocore | 1.43.110 | Apache-2.0 | © Amazon.com, Inc. or its affiliates |
| nats-py | 2.16.0 | Apache-2.0 | © The NATS Authors |
| WeasyPrint | 66.0 | BSD-3-Clause | © Simon Sapin and contributors (CourtBouillon) |
| pydyf | 0.11.0 | BSD-3-Clause | © CourtBouillon and contributors |
| fontTools | 4.59.0 | MIT | © Just van Rossum, Behdad Esfahbod and contributors |
| Pillow | 11.3.0 | MIT-CMU | © Jeffrey A. Clark and contributors; © Secret Labs AB; © Fredrik Lundh |
| cryptography | 50.0.2 | Apache-2.0 OR BSD-3-Clause | © Individual contributors |
| itsdangerous | 2.2.0 | BSD-3-Clause | © Pallets |
| requests | 2.34.2 | Apache-2.0 | © Kenneth Reitz and contributors |
Fonts
The fonts are delivered to your browser; each is served with its SIL Open Font License text (fonts/<family>/OFL.txt).
| Component | Version | Licence | Copyright |
|---|---|---|---|
| Inter | — | OFL-1.1 | © The Inter Project Authors |
| IBM Plex Sans Arabic (served as CHERT Sans Arabic) | — | OFL-1.1 (Reserved Font Name “Plex”) | © IBM Corp. |
| JetBrains Mono | — | OFL-1.1 | © The JetBrains Mono Project Authors |
| Playfair Display (served as CHERT Display Serif) | — | OFL-1.1 | © The Playfair Display Project Authors |
Licence texts
The licence and notice texts are published on this site, verbatim as distributed upstream.