Open-Source Attributions
Overview
The Kisenon service is built on top of open-source software. The table below lists every upstream component we deploy, the license under which we use it, the version we run, and any modifications Seiraiyu LLC has made to it. We provide this page to satisfy the attribution and state-changes requirements of the Apache License, Version 2.0 (§4(b)), the AGPL v3 network-user source-availability requirement (§13), the PostgreSQL License, and the MIT and ISC licenses.
Components
- Neon storage layer (pageserver, safekeeper, storage-controller, compute_ctl, Neon Postgres patches)
- License
- Apache 2.0
- Version
- release-9129
- Modifications
- Modified by Seiraiyu LLC. Added live-set consultation to the pageserver garbage-collection path per our internal ADR 0003. The patched image is published as ghcr.io/seiraiyu/neon:release-9129-seiraiyu1. Source for the modifications is available on request to legal@seiraiyu.com.
- PostgreSQL
- License
- PostgreSQL License
- Version
- 17.x (via Neon vendored sources)
- Modifications
- Unmodified beyond the Neon-published patch set noted above.
- MinIO
- License
- GNU AGPL v3
- Upstream
- https://github.com/minio/minio
- Version
- RELEASE.2025-09-07T16-13-09Z
- Modifications
- Unmodified — we run the upstream binary. The AGPL §13 source-availability obligation is satisfied by the upstream link.
- CloudNativePG (CNPG)
- License
- Apache 2.0
- Version
- Helm chart 0.28.0 (app v1.29.0)
- Modifications
- Unmodified.
- Argo CD
- License
- Apache 2.0
- Version
- Helm chart 9.5.4 (app v3.3.8)
- Modifications
- Unmodified.
- cert-manager
- License
- Apache 2.0
- Version
- v1.20.2
- Modifications
- Unmodified.
- External Secrets Operator
- License
- Apache 2.0
- Version
- Helm chart 2.3.0 (app v2.3.0)
- Modifications
- Unmodified.
- Next.js
- License
- MIT
- Version
- 15.x
- Modifications
- Unmodified.
- React
- License
- MIT
- Version
- 19.x
- Modifications
- Unmodified.
- NextAuth.js (Auth.js)
- License
- ISC
- Version
- 5.x
- Modifications
- Unmodified.
Source-modification requests
Where the table above shows Seiraiyu-made modifications, you may obtain a copy of the modified source by emailing legal@seiraiyu.com. We will provide it within a reasonable timeframe at no charge beyond our reasonable cost of delivery.
Trademarks
Neon is a trademark of Neon Inc. Postgres and PostgreSQL are trademarks of The PostgreSQL Global Development Group. MinIO is a trademark of MinIO, Inc. References to these names on this page are for identification only and do not imply endorsement by their owners. Kisenon is operated by Seiraiyu LLC and is not affiliated with or endorsed by Neon Inc.
License texts
Each upstream link above points to the source repository at the version we run, including its LICENSE file. We preserve copyright notices in the binaries we distribute as required by the applicable license.