I found the WRT1900AC v2 (cobra) at a local thrift shop for $15. I installed Openwrt version OpenWrt 23.05.5, r24106-10cc5fcd00 on it fairly easily, have internet access, but when I try to do an opkg update, it fails.
This is the default distfeeds.conf when I first installed OpenWRT. I'm pretty sure each line needs to point to different URL. Can anyone provide the correct distfeeds.conf?
I think I solved this. I went a different route and built from offline builder, and apk works right out of the box after I did a sysupgrade with the new image I built (openwrt-mvebu-cortexa9-linksys_wrt1900ac-v2-squashfs-sysupgrade.bin).