Would you mind help me understanding?

[minlaxz]

Sorry I am really new to OpenWRT, and ImmortalWrt.

So please help me understand,

Pay attention to this point, to install Sing-box in the router, use the builds taken for the passwall.

I can install ImmortalWrt on my router, I have few protocols using with sing-box on my mobile.

But I don't know how to use that passwall and sing-box on my router.

My router is TL-WR1043ND V4. It would be helpful just for tutorial link or something like that for similar router setup.