On 09.11.21 20:38, Brian Park wrote:

Is the TZDB project intended to support only POSIX systems?

It's a fair question.  Before we say, “no”, I would like to understand what sort systems use the database that themselves are NOT POSIX compliant.  But also, as Paul pointed out, the binary format itself is standardized at the IETF, the sponsor of this shindig.

We could go up the stack, but before we do so, we should be clear on our reasons as to why we are doing so.  And so when you say:

My downstream usage does not have a file system, or even an operating system. For me, the API into the TZDB project are the raw files, but I understand that my usage is unusual.

Would you mind being a bit more specific?  Are you printing a book?  ;-)