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There is no wlan0 interface for this device.

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN 
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: rmnet0: <BROADCAST,MULTICAST> mtu 2000 qdisc noop state DOWN qlen 1000
    link/ether 02:bf:49:f7:0d:a5 brd ff:ff:ff:ff:ff:ff
3: rmnet1: <BROADCAST,MULTICAST> mtu 2000 qdisc noop state DOWN qlen 1000
    link/ether e6:35:71:d7:2a:fa brd ff:ff:ff:ff:ff:ff
4: rmnet2: <BROADCAST,MULTICAST> mtu 2000 qdisc noop state DOWN qlen 1000
    link/ether 9e:55:06:f1:f4:f6 brd ff:ff:ff:ff:ff:ff
5: rmnet3: <BROADCAST,MULTICAST> mtu 2000 qdisc noop state DOWN qlen 1000
    link/ether aa:4e:da:f0:4b:b5 brd ff:ff:ff:ff:ff:ff
6: rmnet4: <BROADCAST,MULTICAST> mtu 2000 qdisc noop state DOWN qlen 1000
    link/ether de:02:3a:7e:ed:64 brd ff:ff:ff:ff:ff:ff
7: rmnet5: <BROADCAST,MULTICAST> mtu 2000 qdisc noop state DOWN qlen 1000
    link/ether 82:43:57:3f:32:25 brd ff:ff:ff:ff:ff:ff
8: rmnet6: <BROADCAST,MULTICAST> mtu 2000 qdisc noop state DOWN qlen 1000
    link/ether 0a:38:30:81:d0:de brd ff:ff:ff:ff:ff:ff
9: rmnet7: <BROADCAST,MULTICAST> mtu 2000 qdisc noop state DOWN qlen 1000
    link/ether 6a:e5:b5:d6:b9:cd brd ff:ff:ff:ff:ff:ff
10: sit0: <NOARP> mtu 1480 qdisc noop state DOWN 
    link/sit 0.0.0.0 brd 0.0.0.0
11: ip6tnl0: <NOARP> mtu 1452 qdisc noop state DOWN 
    link/tunnel6 00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00 brd 00:00:00:00:00:00:00:00:00:00:00:00:00:00:00:00
12: rndis0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether aa:2c:ab:76:d3:6d brd ff:ff:ff:ff:ff:ff
    inet 172.16.42.1/16 brd 172.16.255.255 scope global rndis0
    inet6 fe80::a82c:abff:fe76:d36d/64 scope link 
       valid_lft forever preferred_lft forever

I looked into it and figured it was due to a lack of firmware. After digging around in a few android_vendor_kylessopen repos, I discovered I likely needed linux-firmware-ath6k. I installed it via pmbootstrap init's extra software packages prompt. I still don't get a wlan0 interface and I even tried copying the contents of /lib/firmware to /system/vendor/firmware and rebooted with still no luck. I'm not sure how to proceed.