[MrBungle]

You can usually set up design rules in PCB packages for home use. Just set your track width and spacing based on what you can do and you’re done. I’m using Kicad for this. I did a single layer board last week. Managed to ruin it by over etching. The brilliant thing is when you get fed up, you can hire someone else to deal with it. I got OSHpark to make three boards for £7.24 which I figured was better return on my small volume. Plus they’re solder masked, ENIG (gold) finish, silk screened, plated vias etc and good to 4 layers.

Just did three more tiny little SMD boards the other day for a pulse generator which were £2.33 for 3!