How it works

1. Load your own copy of an update, official (e.g. Ver7_U.yki) or already customised. Nothing is uploaded: everything happens in your browser.
2. Replace the sounds you want (WAV, MP3, MP4…). A new sound can be shorter or longer than the original: the update’s offset table is rebuilt automatically, as long as the total size stays under the limit shown on the page. Prefer mono sounds: a stereo file is mixed down to mono and may end up quieter.
3. Accept the legal information, then click Generate request: you get a .ucyx file (encrypted).
4. In the Discord server, run /build and attach two files: the .ucyx and the starting update (the .yki you loaded here, official or custom): the bot privately sends you the modified .yki.