Abandoned?
Why Perfboard?
It’s a nice little app though that covers the very basics of Ohms Law.
There’s a bit about resistor colour codes and caps.
A nice touch is the info about LEDs and voltage dividers.
To be fair; there’s enough info here for you to keep the magic smoke inside an LED and get it to light up, and in all honesty that’s where the journey begins.
There’s no point in scaring people with circuit analysis, truth tables and sketches.