Now it uses SPDX identifiers, but lowercase ors, should probably be uppercase ORs.

Yea. I've been reading through the spec lately, since I want to add proper SPDX support to my project,
and it says joiners should be uppercase and parsers should match case-sensitively.

License expression operators (AND, OR and WITH) should be matched in a case-sensitive manner.

https://spdx.github.io/spdx-spec/v2.3/SPDX-license-expressions/#d2-case-sensitivity

Right.

So:

0BSD OR AAL

0bsd OR AAL

0Bsd OR aAl

are all correct while

0BSD or AAL

is not correct.

Miroslav