https://opengoal.dev/ has reverse-engineered a compiler and runtime for the non-GC lisp GOAL that Naughty Dog used for the Jax and Daxter action adventure games. They have decompiled the game code for all three games.
My understanding is that Naughty Dog abandoned GOAL after the Jak games due to pressure from Sony. Sony wanted all of their studios to be able to share source code. [0]
I hate this. Any two organically grown codebases (like, for example, games from different studios) are going to be so different that significant, non-trivial code sharing between them is going to be impossible anyway. Anything sufficiently generic might as be distributed as a precompiled library, and then use the FFI in your language of choice to take advantage.
"Add this to the difficulty curve of learning a new language for new hires".
This argument is such a pointy-haired boss argument. Mature applications and systems will be more complicated and take longer to learn than the basics of pretty much any programming language. Grab some juniors and teach them if local seniors don't want to work in the language for a reasonable price.
Most seniors I know wouldn't balk at learning a new language for a job, because most seniors know what you just stated to be true. It will take much longer to get up to speed on the codebase than it will be to learn the language. Even for "difficult" languages like a lisp or Haskell.
Management and HR seem to assume it will take significantly longer to get up to speed in a new language, but don't seem to care that new hires have to learn all of their weird C++ idioms that have built up over decades like atherosclerosis.
Not to mention working programmers are expected to keep up with changes to C++, Python, Java, JavaScript (and its frameworks), Go2.0, etc., many of which constitute "new language" levels of different, not to mention actual language changes like JS -> TypeScript, or Java -> Kotlin, or ObjC -> Swift, and even occasionally mobile lang -> C++ (maybe just a shared core). There's plenty of evidence that it's not that bad. And meanwhile, Common Lisp hasn't changed, code from the 90s works unmodified, the only things to keep up with really are which libraries and implementation-specific features are new/interesting/in fashion (same as any language ecosystem).
It is quite different, as those are incremental changes, and most of them can be ignored until there is a requirement to use a library or SDK that makes more recent features a requirement.
Any corporate developer knows the pain of actually being allowed to upgrade toolchains, traditionally lagging behind several years behind lang v-latest.
My understanding is that Naughty Dog abandoned GOAL after the Jak games due to pressure from Sony. Sony wanted all of their studios to be able to share source code. [0]
I hate this. Any two organically grown codebases (like, for example, games from different studios) are going to be so different that significant, non-trivial code sharing between them is going to be impossible anyway. Anything sufficiently generic might as be distributed as a precompiled library, and then use the FFI in your language of choice to take advantage.
[0] https://web.archive.org/web/20070720142546/http://lists.midn...