That's true. There are many shades of "available". IIRC, Microsoft shares limited slivers of Windows source under specific programs, which include nondisclosur

That's true. There are many shades of "available". IIRC, Microsoft shares limited slivers of Windows source under specific programs, which include nondisclosure and other terms. Those programs do not permit publication. When the folks I talk to say "source-available", they tend to mean "source publicly available". I don't think usage is clear on whether that publicly available source must come with a public license for re-publication and distribution. When code is "source-available" primarily for audit purposes, it often doesn't. Otherwise, it often does.