Built in .
Trly.gd was my first real website. It was not really a website, but a drop-in replacement for the browser's default search engine. It could redirect your queries to the right search engine based on the keywords you used. For example, "images:dog" would search Google Images, "en2fr:dog" would translate words to French, "wen:dog" would search English Wikipedia and so on.
It ran quietly for over a decade, making it my longest-running project. The keywords are engraved in my memory, and I instantly miss them when I use someone else's computer.
When I rebuilt my website from scratch, I took a few minutes to rewrite the original script in Python, enable HTTPS, and disable server logs. I should have done that a long time ago.