what is klx-sevenpy fr?

This project is a small joke web service built around a quirk of the Discord chat app rather than a general purpose tool. Discord lets you edit your most recent message using a text substitution command, similar to the sed command used in Unix systems, such as typing s/i/x-seven to replace the letter i in your last message with the text x-seven. The trick this repository exploits is that if you had previously sent a link to a gif from the site klipy.com, running that substitution command turns the link into klx-sevenpy.com, which happens to be a domain the author registered. This repository is the code running behind that domain. When a klx-sevenpy.com gif link is requested, the service fetches the first frame of the original gif from klipy, splits the image in half, animates the two halves moving up and down, and adds a bold caption reading a phrase related to the number sequence six seven, referencing an internet meme. To use it, you send a gif from Discord's klipy gif picker, then send a message containing the text s/i/x-seven, and Discord's built in edit feature rewrites your previous message's link to point at this project's domain, which returns the modified animated image in place of the original gif. The project is written in TypeScript. The README does not describe any installation steps because it functions as a hosted web service tied to a specific domain rather than a program you run yourself, the repository is shared mainly so others can see and learn from the code behind the effect. Credit is given to another developer for the idea and to the creator of an earlier, similarly styled substitution based Discord trick that this one is modeled after. No license is stated in the README.