Environment Variables
The adapter system uses environment variables to configure its behavior.FACETS_ADAPTERS_DIR
Overrides the base directory used for installed adapters. When set, install, list, remove, and build all read from and write to this directory instead of the default ~/.facets/adapters/.
--target-dir flag is not supported because it would require persistent configuration so that later invocations (such as facet build) could locate adapters placed in non-default locations.