Quirk vmm and wifi installation

[stagain]

dear daemonforums!
Thank you for helping new BSD folks like me.
This is the description of what I've done yet:

OpenBSD 6.2 installed by cd0.
I need Wifi
lspci | grep -i wirelessResult: Qualcomm Atheros
downloaded:

athn-firmware-1.1p2.tgz

athn-firmware-1.1p4.tgz

wpa_supplicant-2.6p0.tgz

fw_update athn-firmware

can't find vmm-firmware

fw_update -vvvvv -p vmm-firmware.1.11.0p0.tgz

Installing: vmm-firware
Updating: athn-firmware
Looking for vmm-firmware
can't load quirk: can't locate OpenBSD /Quirks.pm in @INC

Quirks.pm 04/10/18 ->perl file
ports.su/devel/quirks/pkg/DESCR 1.1.1.1 -> quirks txt description
ports.su/devel/quirks/pkg/PLIST 1.3 -> perl config file?
ports.su/devel/quirks/pkg/MAKEFILE -> execute?
Questions:

1. How do I install quirk[s]?

1. Which files do I need for the quirk[s] installation?

1. Which is the correct command to install quirk[s]?

1. If I install quirk[s], will I be able to enable wifi with the downloaded packages? Or do I need index.txt and SHA256.sig?