I'm not new to live systems and to the dd command. But this is new:
I want to write (not install!) a live iso on the internal hard disk (4Gb SSD). Raises questions:
1. Can I get away without swap (2Gb RAM)?
2. How could I add a writable section (aka "persistent home")?
3. How could I add the necessary drivers (wifi, which is not on the live system)?
Using a chroot to install and setup a working system (on another machine with a large harddisk) and then change that to a live iso does not help because of the different hardware.