Two similar incidents from my career:
https://github.com/rongarret/gll-mag-patch/
https://www.youtube.com/watch?v=_gZK0tW8EhQ&t=2340s
(Also recounted in https://www.corecursive.com/lisp-in-space-with-ron-garret/)
https://github.com/rongarret/gll-mag-patch/
https://www.youtube.com/watch?v=_gZK0tW8EhQ&t=2340s
(Also recounted in https://www.corecursive.com/lisp-in-space-with-ron-garret/)
It isn't 100% clear from the Voyager documentaries how much of the dev environments were destroyed/lost between projects being canceled. I tried to get the Voyager source but it isn't classified as a government record that would be subject to FOIA, which is frustrating. (nothing to do with security, just IP)