How to create a template that includes a seed database using dbca

This is how you can create a new template which will include the database "mydb01" as a seed database for future installations:

dbca -silent -createCloneTemplate -sourceDB mydb01 -templateName minimal_nonmt_seed -maintainFileLocations true -sysDBAPassword mysecretpassword -sysDBAUserName sys -rmanParallelism 2 -dataFileBackup true -datafileDestination /u01/oracle/oradata/19c/assistants/dbca/templates