Sandboxed applications run in an environment that prevents them from accessing the host machines resources directly. Sandboxing is implemented using Docker images and containers. The default Docker image, which is used to create application images, has Ubuntu Linux operating system installed. Each installed sandboxed application has its own Docker image.

The technology used to implement the sandboxed application is not limited by Spaceify by any way. The Ubuntu operating system naturally imposes limits to the possibilities. However, the limitation can be avoided by creating custom Docker images, see the docker_image section. The default image contains Python and Node.js and running applications made with them is out-of-the-box.

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