Boot0 is pulled to GND with a 10kOhm resistor, so you can leave it unconnected.
The RST pin has no pull up or pull down, you need to add a R/C combination externally as shown in the RAK3172 Beakout Board schematics:
Boot0 is pulled to GND with a 10kOhm resistor, so you can leave it unconnected.
The RST pin has no pull up or pull down, you need to add a R/C combination externally as shown in the RAK3172 Beakout Board schematics: