The version in which sites are available only via onion addresses is the easiest to get started with, since you can evaluate the system without committing to buying an ICANN domain name or needing to get involved with SSL/TLS certificates at all. However, if you do want your sites to be available typically as subdomains of a domain name which you own then remove the *--onion yes* option from the last command shown above.
If you want to create images for microSD cards used within various single board computers then replace the *i386* with *beaglebone*/ *cubieboard2* /*cubietruck*/ *a20-olinuxino-lime* /*a20-olinuxino-lime2* / *a20-olinuxino-micro* or *apu*.
This takes a while. Maybe an hour or so, depending on the speed of your system and the internets. The good news though is that once created you can use the resulting image any number of times, and you don't need to trust some pre-built image.