[exec]   Problem 1
[exec]     - Root composer.json requires keruald/omnitools ^0.8.0 -> satisfiable by keruald/omnitools[0.8.0].
[exec]     - keruald/omnitools 0.8.0 requires ext-intl * -> it is missing from your system. Install or enable PHP's intl extension.
[exec] 
[exec] To enable extensions, verify that they are enabled in your .ini files:
[exec]     - /usr/local/etc/php/conf.d/ast.ini
[exec]     - /usr/local/etc/php/conf.d/date.ini
[exec]     - /usr/local/etc/php/conf.d/memory-limit.ini
[exec]     - /usr/local/etc/php/conf.d/opcache.ini
[exec]     - /usr/local/etc/php/conf.d/xdebug.ini
[exec] You can also run `php --ini` in a terminal to see which files are used by PHP in CLI mode.
[exec] Alternatively, you can run Composer with `--ignore-platform-req=ext-intl` to temporarily ignore these required extensions.