Yeah, there’s always gonna be some funkiness. My design philosophy was that embedded developers avoid dynamic memory whenever possible (it’s so bad in the avr implementation that I even stay away from stuff like the String class). Basically you’ll have to determine the max size of your containers at compile-time, and and use a common size because containers with different allocators are different types, but that’s true in any implementation - std::vector with different allocators are different types too. I try to upload stuff daily so hopefully it’ll be more complete soon.