Just a luci package, you also should paste a correct Clash bin file named clash here: /etc/openclash, and chmod 0755 or just download from settings page
Depends coreutils-nohup, bash, wget, iptables
OpenClash will take over your all dns requests, please make sure your dns settings are correct
No need change your clients dns server for use fake-ip, you can switch mode just select and restart
Changes
Add update function for Luci & core, choose your correct version on settings page before download