1. build with
   mvn clean package

2. put codes.env file next to jar files in formant:
   totp_<some_name_1>=<secret_code_1>
   totp_<some_name_2>=<secret_code_2>
   ...

3. launch java -jar totp-get.jar

As a result it will print TOTP codes for you in terminal as soon as they refresh