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astrid-runtime/book has 7,451 GitHub stars and 32 forks. Star changes are not measured yet. Last checked 2026-11-07 17:06 UTC. Last push 2026-09-08.

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The canonical reference for Astrid: kernel, capsules, host ABI, IPC, and the security model.

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README.md

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The Astrid Book

The canonical reference for Astrid: the kernel, the capsule model, the host ABI, the bus, and the security model.

Built with mdBook.

mdbook serve --open

The reference appendices (capability catalog, host ABI error codes, topic registry) are generated from the Astrid source by tools/gen-appendices.sh. The cross-chapter "See also" footers are generated by tools/gen-see-also.pl. Both read the polyrepo source tree, so run them from a checkout that has core/, wit/, and capsules/ as siblings.

Dual-licensed under MIT and Apache 2.0.

Copyright (c) 2025-2026 Joshua J. Bouw and Unicity Labs.

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