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@Hopding @mikkame



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About me👋

I am a full-time front-end engineer and currently working remotely. I also have a business in Japan, a web service I created. (
Currently, I am based in Tokyo, Japan, but I would like to work in California, USA if I get the chance someday.

Please feel free to reach out via email or connect with me on LinkedIn. I am always happy to talk, answer questions, or discuss new opportunities.


  • Service development from scratch
  • Personal Development (web tools, web services etc.)
  • OSS (I maintain labelmake, a PDF generation library.)

I often use the Hopding/pdf-lib and daybrush/moveable libraries and I would have never set up my own business without their contribution. I am therefore very grateful to their authors, whom I support financially.

Field of expertise

  • APIs, Jamstack, React, TypeScript, JavaScript optimization, Node.js, SEO.


  • English, Marketing, Golang, etc.


hand-dot's GitHub stats Top used Langs

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  1. Declarative style JavaScript PDF generator library. Works on Node and the browser 🖨︎

    TypeScript 304 22

  2. Taskontable is To-Do List & Time keeper on Spreadsheet.

    JavaScript 14 1

  3. Generate react component with storybook and unit test file by schematics

    TypeScript 5

  4. table2md Public

    Convert from Excel-like table to markdown table.

    JavaScript 7

  5. spreadsheet-music

    JavaScript 2

  6. Forked from reactjs/

    (Work in progress) React documentation website in Japanese


1,791 contributions in the last year

Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Mon Wed Fri
Activity overview
Contributed to hand-dot/labelmake, hand-dot/hand-dot, scala-text/scala_text and 5 other repositories

Contribution activity

December 2021

27 contributions in private repositories Dec 1 – Dec 6

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