Yes, if it can be imagined it can be done
I am already preparing my first mini project with it. The steps are (still at the first one)
Draw the circuit and footprints in order to print it normally on a glossy paper
Once printed, redraw on it with the conductive ink pen
After that, apply Z-axis conductive 3M two side sticker where the components are to be placed
Then, just stick them
I am sure that more than one person in this forum will know what this pattern is