C:\>_ | This user uses DOS, or knows how to use it. |
![macOS](//upload.wikimedia.org/wikipedia/commons/thumb/b/bb/OS_X_El_Capitan_logo.svg/35px-OS_X_El_Capitan_logo.svg.png) | This user contributes using macOS. |
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![](//upload.wikimedia.org/wikipedia/commons/thumb/3/35/Tux.svg/35px-Tux.svg.png) | This user loves using Linux! |
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![](//upload.wikimedia.org/wikipedia/en/thumb/6/62/PD-icon.svg/45px-PD-icon.svg.png) | This user believes in freedom of all types of information for all. |
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![](//upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Apple_logo_black.svg/50px-Apple_logo_black.svg.png) | This user prefers Mac. |
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![](//upload.wikimedia.org/wikipedia/commons/1/1d/8bit-dynamiclist.gif) | This user really likes old computers. |
math-N | This user can contribute with fluent mathematical skills. |
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![{\displaystyle x^{n}+y^{n}=z^{n}}](//wikimedia.org/api/rest_v1/media/math/render/svg/c34dcc46ebfb58e1b91a6c0caa1470e76139543a) | This user is fascinated by number theory. |
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