Is there a known collection of patches for Luci or something? I am new to OpenWrt, so maybe my search terms are off, but I can't seem to find anything. I saw the post below, where someone showed a patch for Luci that adds the option to manage dhcp tags:
He mentions it's not in master yet, implying there is an associated git repo somewhere? Someone please point me in the right direction. Thanks!
@systemcrash, where's your stuff ? 
I think here: https://github.com/systemcrash/luci ?
Yep. They are in the dhcp_redesign_phase2 branch.
I anticipate to finish the PR text later this evening.
Testing welcome, since these DHCP tags are generally an under-the-hood tool provided by dnsmasq, so it's not impossible that bugs exist, although I've tested it a fair bit.
Edit: PR ready.
Or for a more general/ generic answer, https://github.com/openwrt/luci/pulls
Thanks guys. So I see that some of the modified files in that PR are located in both /rom/www and /www on my router. I know /rom is read-only. Would changes I make in /www persist across reboots? Or is there another method I should be using if I want to pull these changes into my system now?
Yes, they will persist in overlay filesystem just like config filed.
If you want to preserve them over sysupgrade (unlikely) you have to add file paths to /etc/sysupgrade.conf