A simple Tesla Overlay to request atmosphere to reload the hosts file, and to toggle on/off hosts file entries.
All lines starting with # are treated as section Headers.
If the line starts with a digit, it is expected to be an IP address and toggleable.
Toggling is performed by prepending or removing a ;.
All other lines are simply ignored.
Hosts files are reloaded in DNS MITM each time the overlay is hidden.
See Atmosphere docs here for details on the function of DNS MITM.