% brew install mariadb
Error: Cannot install mariadb because conflicting formulae are installed.
mysql: because mariadb, mysql, and percona install the same binaries
Please `brew unlink mysql` before continuing.
Unlinking removes a formula\'s symlinks from /opt/homebrew. You can
link the formula again after the install finishes. You can --force this
install, but the build may fail or cause obscure side effects in the
resulting software.
Error
Solved