  Discovery and observations of exotic, quantized optical and electrical
responses have sparked renewed interest in nonmagnetic chiral crystals. Within
this class of materials, six group V transition metal ditetrelides, that is,
XY$_2$ (X = V, Nb, Ta and Y = Si, Ge), host composite Weyl nodes on
high-symmetry lines, with Kramers-Weyl fermions at time-reversal invariant
momenta. In addition, at least two of these materials, NbGe$_2$ and NbSi$_2$,
exhibit superconducting transitions at low temperatures. The interplay of
strong electron-phonon interaction and complex Fermi surface topology present
an opportunity to study both superconductivity and hydrodynamic electron
transport in these systems. Towards this broader question, we present an ab
initio theoretical study of the electronic transport and electron-phonon
scattering in this family of materials, with a particular focus on NbGe$_2$ vs.
NbSi$_2$, and the other group V ditetrelides. We shed light on the microscopic
origin of NbGe$_2$'s large and anisotropic room temperature resistivity and
contextualize its strong electron-phonon scattering with a presentation of
other relevant scattering lifetimes, both momentum-relaxing and
momentum-conserving. Our work explores the intriguing possibility of observing
hydrodynamic electron transport in these chiral Weyl semimetals.
