As of the current update, the base Nullius overhaul is compatible with the Advanced Fluid Handling and Warehousing mods on it's own, without this extra compatibility layer.

It doesn't have Localized Charging, but it does have compatibility with Induction Charging, which serves a similar role. Induction Charging doesn't have battery powered trains, but Nullius already allows you to use batteries to power trains, and they can be recharged at the station. At higher tech levels, Nullius also has Solar Locomotives that require no power, though they're a bit slower than the externally powered ones.