Configuration
Betaflight tuning and sample flight footage for this build. For assembly, see the build instructions.
Betaflight
Make sure to correctly adjust board/gyro position as flipped because you mounted the board upside down, make sure to verify it's behaving correctly. Also make sure to correctly assign motors and their direction in the motors tab, especially when you didn't mark the motor wires when routing them internally through arm tubes.
The quad flies very well on standard betaflight settings, even better with RPM filtering enabled and 5" Supafly preset.