missing file config.json

[XuliaDS]

Hi !
I am trying to use this software. I can run the full pre-processing steps but can't run the simulation:
import polyfempy
path_config = os.path.dirname(main_dir) + '/config.json'

because the config.json file is missing. Is this supposed to be generated on the run ?

Also, when I run polyfem --help, I get the following Options:

---

-h,--help Print this help message and exit
--max_threads UINT Maximum number of threads
-j,--json TEXT:FILE Simulation JSON file
--hdf5 TEXT:FILE Simulation hdf5 file
-o,--output_dir TEXT:(DIR) OR (PATH(non-existing))
Directory for output files
-s,--strict_validation,--ns{false},--no_strict_validation{false}
Disables strict validation of input JSON
--enable_overwrite_solver If solver in json is not present, falls back to default
--log_level ENUM:value in {trace->0,debug->1,info->2,warning->3,error->4,critical->5,off->6} OR {0,1,2,3,4,5,6}

---

so it seems that the flag --febio is not available. Any thoughts ?

Thanks,
Xulia