KCS ORIGINAL INTERFACE SOUND LICENSE - MIT Copyright (c) 2026 Kinfolk Cluster Studios Permission is hereby granted, free of charge, to any person obtaining a copy of these original synthesized sound files and associated documentation, to deal in the sound files without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies, and to permit persons to whom the sound files are furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the sound files. THE SOUND FILES ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOUND FILES OR THEIR USE OR OTHER DEALINGS IN THE SOUND FILES. Scope: ui-focus.wav, ui-confirm.wav, ui-complete.wav, ui-open.wav. These four cues were synthesized from simple waveforms in this KCS workflow. No recordings, stock samples, external music or third-party library was used. There is no ongoing royalty payment. KCS brands and lesson text are separate. Rights apply to protectable contributions to the extent recognized by law.