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by jkwchui 1133 days ago
(Font author)

This is all off the beaten path, so I suspect the answer is no one knows. Font tables have a limit of 65k characters, but this ceiling can be busted in whacky ways using multiple lookups, useExtension... Practically, font building tools / operations crash (mysteriously), stalls (mysteriously), or slows to a crawl (indistinguishable from stalling), and the Cantonese Font about pushes the limit.