C:\>_ | This user uses DOS, or knows how to use it. |
| This user contributes using macOS. |
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| This user loves using Linux! |
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| This user believes in freedom of all types of information for all. |
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| This user prefers Mac. |
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| This user really likes old computers. |
math-N | This user can contribute with fluent mathematical skills. |
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| This user is fascinated by number theory. |
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