This is something hopefully suitable to become a 'Board Bring up' thread.
The NanoPC T4 was the smallest RK3399 board around featuring full set of interfaces (Rock960 was smaller but there you can't use GbE without a proprietary expander) but in the meantime he got two smaller siblings: NanoPi M4 and the cute NEO4.
Pros:
Another RK3399 board so software support is already pretty mature
Rich set of interfaces (2 x USB2 without shared bandwidth, 2 x USB3, tripl