> it is practically impossible for anyone to comply with that, to provide source code for every single program (without limitation) that they happen to use anywhere.
It is practically impossible to comply, yes, but not just because you'd need to provide the source code to all the software you're using. The thing that really makes it impossible to comply with is that you must release all of that software under the SSPL. This could be reasonably interpreted to preclude the use of FOSS software, like Linux, that you do not have the authority to relicense under the SSPL.
I wrote a blog post[0] about this a while back, but I think this is fixable if you allow the other software in the stack to be released under another FOSS license (and you could still require its disclosure).
It is practically impossible to comply, yes, but not just because you'd need to provide the source code to all the software you're using. The thing that really makes it impossible to comply with is that you must release all of that software under the SSPL. This could be reasonably interpreted to preclude the use of FOSS software, like Linux, that you do not have the authority to relicense under the SSPL.
I wrote a blog post[0] about this a while back, but I think this is fixable if you allow the other software in the stack to be released under another FOSS license (and you could still require its disclosure).
[0] https://www.terracrypt.net/posts/the-sspl-is-not-a-reasonabl...