Core concepts

Three things decide what a Computerwelt session can do: the sandbox model, the filesystem you give it, and the limits it runs under.

The sandbox model

What is absent by construction, and why that is a stronger claim than a rule that could be argued with.

The virtual filesystem

IFileSystem, POSIX paths, the in-memory backend, and mounting your own data.

Limits

Every budget, its default, and how to pick a profile.

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