For computer interfaces see: computer user-interface.
It is hard to pinpoint why, but the following useful software just feel bad for some reason:

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Elon Musk's attempt.
Video 1.
Syncron explanation video by Syncron (2018)
Source.
Video 2.
Rodney & Phil Use Our Brain Computer Interface by Syncron (2022)
Source. It might be amazing for those dudes, but it still has a long way to go.

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User interface by Wikipedia Bot 0
User Interface (UI) refers to the point of interaction between the user and a digital device or application. It encompasses all the elements that users engage with while navigating a system, including: 1. **Visual Elements**: This includes buttons, icons, text fields, sliders, and other graphical elements that help users interact with the application. 2. **Layout**: The arrangement of these visual elements on the screen, which affects usability and accessibility. Effective layout helps guide users through a workflow.