Orca is a WebAssembly runtime environment for portable graphical applications. It allows developpers to write their application once using their toolchain of choice, and output a wasm module which is then bundled with the Orca runtime to produce standalone applications for several operating systems.
Applications use the Orca APIs to access the underlying system's resources in a platform-independent way. These APIs are designed with sandboxing in mind, as our plan is to provide a trusted Orca launcher that can browse, download and execute untrusted Orca apps in an isolated context.
We call this approach "Web Apps without the web", because it provides the benefits of web apps while simplifying the tech stack for apps that don't fit the DOM, javascript, or a browser engine.