Change wifi mac

I’ve got a nasty wifi dongle that generates random MAC.

Ca you suggest any comfortable way of automatically assigning custom MAC at raspberry pi startup?

Have you tried ifconfig wlan0 hw ether 02:01:02:03:04:08?

yes, manually this is working
I actually put an entry in /etc/network/interfaces so it does the job.
But looking for some polite solution, maybe something with connman?

ConnMan won’t do this as it’s not its function.