There's one extra character on the URL. This works:
https://pietrasiak.com/one-line-of-code-that-did-cost-dollar8000 https://pietrasiak.com/one-line-of-code-that-did-cost-dollar...
Note that it peaked at 1GiB/s - which is expensive in many clouds, but on a dedicated server you can easily get a truly unlimited 1GiB/s line for not that much (couple hundred, and they throw the server in, too).