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Owned by Benjamin
A dojo for karatekas building real black belt habits through fundamentals, discipline, and consistent training—on and off the mat.
A home for indie iOS developers to ship apps, get honest feedback, and build real App Store traction.
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Benjamin Do hasn't contributed to Rishinjuku Karate yet.
@benjamin-do-1201
I am a martial artist and an indie iOS developer helping people bring joy, purpose, and balance back to their lives.
Active 2h ago
Joined Feb 5, 2026
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