# install
    go install github.com/VarusHsu/psql-test-conn/postgres_conn@latest # postgres
    go install github.com/VarusHsu/psql-test-conn/mysql_conn@latest    # mysql
    # append to env (optional)
    export PATH="$PATH:$(go env GOPATH)/bin"
    # usage
    postgres_conn -h localhost -P 5432 -u postgres -p 123

    wget https://varus-public-bucket.s3.amazonaws.com/mysql_conn_amd64_linux
    wget https://varus-public-bucket.s3.amazonaws.com/mysql_conn_arm64_darwin
    wget https://varus-public-bucket.s3.amazonaws.com/postgres_conn_amd64_linux
    wget https://varus-public-bucket.s3.amazonaws.com/postgres_conn_arm64_darwin