Hey all I am on over the road truck driver wanting to setup a VPN server at my house and be able to access my home network while over the road. I currently have a my own network rack (Ubiquiti based) but I am about to exceed my space in the truck plus my available rack space.
Look into TailScale 
your welcome
If you’re using Unifi gear at home, then you can setup WireGuard on your router and turn it on and off on demand on your device(s).
That will put your device directly in your home network and you can access any machine on your network as though you were physically at home on your local wifi.
You have a rack in your truck? Doesn’t have ubiquity have something called teleport vpn?
Run a tailscale exit node at home with access to the local network, install tailscale client on mobile devices and connect to that node
Tailscale would be your best bet.
You will need to set it up on a machine at home as a subnet router.
Tailscale is free
What’s the UI router at home? Most UI products can run multiple workloads. IMO you can either go with a Point to Site or Site to Site. For P2S, if you don’t have a static and need a DNS resolver, then dyndns should be able to do that for free. Alternatively, UI now has a mobile S2S solution https://ui.com/integrations/mobile-routing
is the candle to keep the evil bug spirits away?
I’d recommend ZeroTier. Very simple to set up, no accounts required, and you can self-host everything (just hosting your own controller is sufficient). TailScale is nice but their entire platform relies on third-party identity providers and you can’t self-host their system like you can with ZeroTier, though there are third-party projects that seem to work nicely.
I’ve been using ZeroTier for a few years now and it’s really a breath of fresh air. It really does just work. I self-host a network controller so that I don’t have to use ZeroTier’s own controller which requires an account and has a limit of ten devices. Their rules engine is very powerful and you can really lock down your network as much as you want.
I’ve looked at Tailscale and at least for homelabbers I don’t see the appeal vs ZeroTier. The simple fact that I needed to use a third-party identity provider not only to manage my networks but also on the clients was such a major turn off for me. Compare that to ZeroTier where there are no accounts and instead every device has a hexadecimal IDs and key pairs for identity verification, and ZeroTier handles all of that behind the scenes.
Yep, looked into site to site vpn or “site magic”