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#### 2.5.4 Internals Documentation

If you're interested in the development of the SBCL system itself, then subscribing to sbcl-devel is a good idea.

SBCL internals documentation – besides comments in the source – is currently maintained as a wiki-like website: http://sbcl-internals.cliki.net/.

Some low-level information describing the programming details of the conversion from CMUCL to SBCL is available in the `doc/FOR-CMUCL-DEVELOPERS` file in the SBCL distribution, though it is not installed by default.