Yep, I agree. Further in the notes it's mentioned this probably would've taken a handful of Senior Engineers anywhere from 6 months to 2 years. The range of budget on the project is like $200 to $500k. This was done for peanuts in my spare time. I share both your optimism and pessimism, depending on the day, lol.
> This was done for peanuts
If you don't have a real dollar cost then can you tell us how much it actually cost in peanuts?
$20 can buy many peanuts
explanation: money can be exchanged for goods and services.