Custom data directory

Custom stellar data and model database files can always be used by providing a full path in the argument. However, users may optionally specify their own data directory using the environment variable STARFIT_DATA for convenience:

export STARFIT_DATA='/your/custom/data'

Files found in the custom data directory will take precedence over the default data directory. Your custom data directory must have the same structure as src/starfit/data, i.e. it should contain the db, ref, and stars directories:

❯ ls
db
ref
stars