cd /usr/src
git clone --recursive https://github.com/tiancj/mt76-dkms.git mt76-<mt76-commithash>
dkms add mt76/<mt76-commithash>
dkms build mt76/<mt76-commithash>
dkms install mt76/<mt76-commithash>

You should copy mt76 firmwares into /lib/firmware to make this driver work properly.

Run this to install mt76 firmware on your system

cd src/firmware
sudo cp -v *.bin /usr/lib/firmware/

You may experience problem with NetworkManager when you try to use wifi dongle with airmon-ng.

If you want its monitor mode capability only, you can simply disable it from NetworkManager using udev rule (see 90-mt7612u.rules).