This one's easy : v2g with plug-n-charge needs full crypto including some levels of validation (but not others, it's in the specs), as well as infrastructure fo

This one's easy : v2g with plug-n-charge needs full crypto including some levels of validation (but not others, it's in the specs), as well as infrastructure for organizing certificates, and support for a good IPv6 networking stack (stack is IPv6 only). Wireless support with WPA3/Enterprise is also essential. I mean it's doable on some embedded platforms, but it's still a pretty large stack of requirements. There's an additional gotcha that all the prototypes are either java or python. Doesn't seem like any of the others (rust, C) have completely caught up with handling the data and EXI layers. (embedded XML). I work on V2G now.