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Achievement: Pull Sharkx3Achievement: QuickdrawAchievement: YOLOAchievement: Arctic Code Vault Contributor

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nyshk97/README.md

Tsubasa Namatame

Freelance Backend Engineer based in Yokohama, Japan (JST / UTC+9).

Specializing in Ruby on Rails with 7 years of experience. Skilled in backend performance optimization, Ruby version upgrades, and architecture improvements (modular monolith, etc.). Also experienced with Python, TypeScript, AWS/Terraform, and GraphQL.

Co-founder & CEO of Danmica, Inc. — operating developer-focused SaaS products.

📄 Full Resume

LinkedIn Dev.to blog Likes Contributions

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  1. browser browser Public

    My daily-driver web browser, built as an Arc alternative. Electron + WebContentsView, with Chrome extension support.

    TypeScript 13

  2. ide ide Public

    My daily-driver macOS IDE built for the AI-CLI era — embedded Ghostty terminals, project switching, file tree, git watching, all around Claude Code. Swift + libghostty.

    Swift 12

  3. daw daw Public

    My personal DAW built from scratch with JUCE. Multitrack recording, piano roll, custom DSP FX, and vocal pitch correction — macOS only.

    C++ 12

  4. blog blog Public

    My personal blog, powered by a custom note-taking app — auto-save, full-text search, and publishing. Rails 8 + Next.js 15.

    TypeScript 2