Download
https://www.unicode.org/Public/zipped/latest/UCD.zip
https://www.unicode.org/Public/zipped/latest/Unihan.zip

mkdir -p unicode-character-database/usr/local/share/unicode/ucd

cd unicode-character-database/usr/local/share/unicode/ucd

unzip /tmp/UCD.zip

unzip /tmp/Unihan.zip

Liscence can be found at
https://www.unicode.org/copyright.html