Built using Electron for cross-platform compatibility, with Typescript/React and Styled-Components. The development tooling is Vite, and we use Gitea & Drone as our build system. Updating is handled by Electron Builder.
The Windows and MacOS packages are signed using an OV certificate.
Orynt3D is "clopen source". The source code is private, but we're happy to talk about contributions, and if you have any technical questions or concerns we're happy to talk about them!
If you want to play with a web-based version of Orynt3D's technology, you can find a starter from us on Github.