Salut_fonts/charsets
..
README.charsets

README.charsets

Place charset files here in UCM format.
They keep their own copyright, so I do not include them in the repository.
You can take them here:
https://github.com/unicode-org/icu-data/tree/main/charset/data/ucm

It is also good to place unicode block list provided by unicode.org here.
The link is https://www.unicode.org/Public/UCD/latest/ucd/Blocks.txt

(notice they can change the location, in this case please kinly bugreport broken link).