So I was successfully following the guide on https://openwrt.org/docs/guide-user/network/wifi/relay_configuration until I had to install the luci-proto-relay package. Fails at that part 
This, I assume, Is going to be much longer wait haha
Executing package manager
apk add luci-proto-relay
(1/2) Installing relayd (2023.01.28~f646ba40-r1)
(2/2) Installing luci-proto-relay (25.206.68149~5857572)
luci-proto-relay-25.206.68149~5857572.post-install: Executing script...
1 error; 23 MiB in 161 packages
Errors
ERROR: relayd-2023.01.28~f646ba40-r1: ADB block error
The apk install command failed with code 1
Edit: I tried adding the luci-proto-relay to the custom firmware selector but it's broken again lol
Guess I've got more waiting to do. Is this normal with the snapshots?
Edit2: I got it working (by adding luci-proto-relay to the firmware builder) but only on the 2.4GHz band. I can't even select 6GHz for radio2 in luci. 5GHz shows nothing as well on the ap side, only the client is successfully connected. Is this normal?
Also I'm editing to avoid double posting. From experience, most forums frown down on double posts and give warnings, not sure if it's the same here.
I (think) I managed to follow the instructions on https://openwrt.org/docs/guide-user/network/wifi/relay_configuration successfully (I had to build a custom sysupgrade containing luci-proto-relay and get it installed that way due to an error in installing it through luci, but other than that, works like a charm).... At least on the 2.4GHz band.
I'd like to (if possible) use WiFi 7 and MLO, or at the very least, get the 6GHz channel working.
This is what it currently looks like:
The 2.4GHz OpenWRT network works just fine and clients can access the internet, so I assume I followed the guide correctly.
OpenWRT5GHz (I separated the SSID for testing purposes) doesn't even show up. Can I have radio 1 both in sta and ap mode at once? I should be able to, no?
And for radio 2, I can't even select the 6GHz band in the drop down menu after I click Edit (just 2.4/5). /etc/config/wireless had it preselected
Here's my /etc/config/wireless (I edited the radio2 manually since luci wasn't giving me the 6GHz dropdown).
config wifi-device 'radio0'
option type 'mac80211'
option path 'soc/11300000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0'
option radio '0'
option band '2g'
option channel '1'
option htmode 'EHT40'
option cell_density '0'
config wifi-iface 'default_radio0'
option device 'radio0'
option network 'lan'
option mode 'ap'
option ssid 'OpenWrt'
option encryption 'sae-mixed'
option key '123'
option ocv '0'
config wifi-device 'radio1'
option type 'mac80211'
option path 'soc/11300000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0'
option radio '1'
option band '5g'
option channel 'auto'
option htmode 'EHT160'
option cell_density '0'
config wifi-iface 'default_radio1'
option device 'radio1'
option network 'lan'
option mode 'ap'
option ssid 'OpenWrt5GHz'
option encryption 'sae-mixed'
option key '123'
option ocv '0'
config wifi-device 'radio2'
option type 'mac80211'
option path 'soc/11300000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0'
option radio '2'
option band '6g'
option channel 'auto'
option htmode 'EHT160'
option disabled '0'
option ocv '0'
config wifi-iface 'default_radio2'
option device 'radio2'
option network 'lan'
option mode 'ap'
option ssid 'OpenWrt6GHz'
option encryption 'sae'
option key '123'
config wifi-iface 'wifinet3'
option device 'radio1'
option mode 'sta'
option network 'wwan'
option ssid 'MyHomeWiFi'
option encryption 'sae-mixed'
option key '123'
option ocv '0'
It was still broken when I woke up, but looks like the buildbot is working fine again now 
