Why this package only supports density functional all-electron package?

[hongyi-zhao]

I noticed the following description of this package:

BerryPI is a software for the calculation of Berry phase and related properties of solids
(including topological materials) with WIEN2k density functional package.

But I really wonder why this package only supports density functional all-electron package?

Regards,
HZ

[rubel75]

Other packages (e.g., VASP, Abinit, ....) have their internal capabilities to compute Berry phase, polarization and related properties. WIEN2k did not have that option and our group filled the gap. There is no limitation for the calculation method to favor an all-electron code vs a pseudopotential code other than possible inaccuracies of pseudopotentials.