But I agree it is easy to do it yourself with propane with one proviso: propane(like butane) has the somewhat insidious property that it is heavier than air so it flows downhill as it dissipates. If it flows to a spark or fire then a flame will spread from the point of first ignition to the propane source.
So if you decide to build a home with a propane(or butane) tank you might consider locating your home on or near a hilltop (that you also own) so that any propane fumes roll away from your property:
https://propanehq.com/do-propane-fumes-rise-or-fall/
Natural gas is much lighter than air and rises quickly up and out of structures. b/c it dissipates so rapidly it is far, far safer than propane. But it is not as easily compressed as is propane so natgas is usually transported to the user in pipes at low pressure.
https://www.thenakedscientists.com/articles/questions/why-st...
