Environment variables

Betty reads the following environment variables:

  • BETTY_CACHE_DIRECTORY: The path to a directory for Betty to use as its application cache. Defaults to .betty in the current user’s home directory.

  • BETTY_CONCURRENCY: The concurrency factor expressed as an integer. Defaults to the number of CPU cores. Set to 1 to disable concurrency altogether. Example: BETTY_CONCURRENCY=4.