PHOEBE library consists of the following sources:

PHOEBE base — initialization functions
phoebe_global
phoebe_model
phoebe_fitting
phoebe_ld
phoebe_parameters
phoebe_radiation
phoebe_data
PHOEBE spectra — functions that facilitate spectra manipulation
phoebe_configuration
PHOEBE accessories — functions that facilitate common type manipulation
phoebe_nms
phoebe_calculations
phoebe_roche
phoebe_fortran_interface
phoebe_error_handling
phoebe_constraints
phoebe_types