Licences
Last updated 26 September 2026.
Nostalgo stands on open source. Below is what ships to users today and the licence it is used under. Full licence texts are available at each project's home. If we have got an attribution wrong, write to hello@nostalgo.app and we will fix it.
The apps and this website
| Component | Licence |
|---|---|
| React Native | MIT |
| React | MIT |
| Expo and Expo Router | MIT |
| Astro | MIT |
| Fraunces | SIL Open Font License 1.1 |
| Inter | SIL Open Font License 1.1 |
The service
| Component | Licence |
|---|---|
| Hono | MIT |
| node-postgres (pg) | MIT |
| jose | MIT |
| Zod | MIT |
| AWS SDK for JavaScript v3 | Apache-2.0 |
| AWS CDK | Apache-2.0 |
| PostgreSQL | PostgreSQL License |
Photo correction
| Component | Licence |
|---|---|
| OpenCV | Apache-2.0 |
| NumPy | BSD-3-Clause |
| boto3 | Apache-2.0 |
Nostalgo itself
The Nostalgo apps, service and this site are not open source. The name Nostalgo, the Nostalgo mark and the text and images on this site belong to Horse Hill LLC.
The photographs on this site
Every photograph shown on this website is generated. The scenes are invented and the people in them do not exist. No customer photograph and no family photograph appears here, and none ever will without the owner asking for it.