Decided to learn and use Vlang for this year's Advent of Code.
I wrote a Vlang program to download the input data from the AoC website. You will need to grab your cookie from Chrome developer tools and place it in a file named .cookie. The cookie file will need to be placed in the same directory as the get_input binary. Then you can run the following:
./get_input path/to/file/input.txt