If you only ship the default collation it is already well under 1MB. DUCET [1] for example is 406 KB in a naive format [2], which gzips (-9) into 164 KB and Bro

If you only ship the default collation it is already well under 1MB. DUCET [1] for example is 406 KB in a naive format [2], which gzips (-9) into 164 KB and Brotli (-q 11) brings it down to 76 KB. Other Unicode tables combined, even in a directly-accessible form, do not exceed 200 KB with an appropriate encoding in my experience. [1] https://www.unicode.org/Public/UCA/13.0.0/allkeys.txt https://www.unicode.org/Public/UCA/13.0.0/allkeys.txt [2] Encodes `XXXX; [.AAAA.BBBB.CCCC] [*DDDD.EEEE.FFFF] ...` into three-byte code point and seven bytes per each collation element (`.` encoded as 0x01, `*` encoded as 0x02, the end of elements signalled with 0x00); everything is in big endian and sorted by code point. This is not suitable for direct access as is but close. (The only reason I've used a naive encoding here is that, I have never tried to compress DUCET in a directly-accessible form so I couldn't give an educated guess at all.)