Your best bet is using a build by @solidus1983
Or you can try two other things:
There was a PR on the openwrt github it seems these images are not build yet on release, you could fork this and build it, or you can use openwifi from here this one was used by GL-iNet, you need to compile it yourself.
You can git clone GitHub - itdoginfo/podkop: Dev podkop copy the luci-app- podkop to feeds/luci.
copy podkop somewhere in feeds/ you can check the Makefile manifest (doesn't need to be perfect resemblance it will compile anyway on the correct category in make menuconfig)
Then ./scripts/feeds update and ./scripts/feeds install thefeedname or -a for all
with make menuconfig you update the packages and you can select them, with make you can compile.