Why shouldn't I use tSQLt in production?

I want to use tSQLt framework for unit testing my T-SQL queries. However [documentation](https://tsqlt.org/user-guide/quick-start/) warns: > Note: tSQLt should never be installed in production. In my case I have single instance of SQL Server, containing both production databases and dev databases. Will installing tSQLt give me some problems in itself, or is the warning just because of all the locks that come with using it? I obviously plan to use one of dev databases for my work, but I am not sure there are server-wide implications that come with the framework.