Create a Public Hotspot from my router, that handles auto time out when their session is done, etc?

Hi there,

I find myself in remote areas regularly, and I have internet, when nobody else does.

I'm happy to share this internet with people, but I want a time restriction on them, and throttle their speeds etc, so that they don't smash my internet / data allowance.

I'm looking for a really easy system where they can just sign into a portal, it gives them a certain amount of time based on my settings, then kicks them off again.

I'm using a GLiNet AX1800 if that makes any difference? Also, all of my machines run different versions / distros of Linux.

I'd really appreciate any feedback, or guidance on this.

Thanks so much