@Johann150 yknow
now that i think about it
that library using regex to detect private v6 ranges means if you write out some or all of the zeroes in the :: ffff: prefix it will fail the check
0:: ffff:1.2.3.4 should pass as public in this lib
:neocat_lul:

(ignore the awkward spacing, we have an ffff emoji and akkoma's markdown parser is NOT happy about that)