AX1800 Flint Ikev2 and Openwrt need help

Hello I have 2 questions and need help,

I want to run Ikev2 on the Flint and I don’t know how. Can someone tell me how to get it to work.

And how do I get an Openwrt version that is not a snapshot for the Flint router?

You don’t… unless you want to go about installing @solidus1983 's ‘pure’ OpenWrt builds & eschew the GL GUI, optimizations. You can do it of course; it’s your hardware.

I’d take a look on the OpenWrt Forums, Wiki after you installed LuCI (GL GUI → System → Advanced Settings). IKEv2 isn’t apart of the stock GL firmware.