I really like word games. I really like puzzles that I can write programs for. This game scratches both itches.
(There's also a second dictionary of 10,657 words that includes all words that it accepts as "valid". These can be much more obscure.)
Changing the system date can make a lot of websites break, because of HTTPS certificates. Right now, the Wordle website's certificate is good from 12/22/2021 through 12/22/2022, so you can feel free to pick any date in that range. But you'll want to undo the date change when you're done, so all the other websites continue working.
Most people start with the same word every time. What is a good starting word though? I wrote this program to calculate what the best words to start with are. It suggests ONSET, ATONE, STEIN, or STONE. I like ATONE because it has the most vowels.