Secret Source

Do you guys know of any torrents or other means for obtaining interesting/rare source code, like the torrent for Symbolics Open Genera¹?

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1. http://thepiratebay.se/torrent/3769989/Symbolics_Open_Genera_2.0_for_Alpha_-_complete_package_with_Lisp1

No but I have some requests:

1. Mirai (or N-world, or S-graphics) (with sources in the former case)
2. Macsyma.
3. A scan of Koegge's architecture of symbolic computers.
4. ICAD
5. Derive for DOS.