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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


  1. pdfme/pdfme Public

    A TypeScript based PDF generator library, made with React.

    TypeScript 378 23

  2. labelmake Public

    labelmake has moved and now available at pdfme /

    TypeScript 358 30

  3. taskontable Public

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

    JavaScript 14 1

  4. table2md Public

    Convert from Excel-like table to markdown table.

    JavaScript 8

  5. spreadsheet-music

    JavaScript 2

  6. Forked from reactjs/

    (Work in progress) React documentation website in Japanese


2,084 contributions in the last year

May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Mon Wed Fri
Activity overview
Contributed to pdfme/pdfme, hand-dot/labelmake, hand-dot/hand-dot and 11 other repositories

Contribution activity

May 2022

Created 19 commits in 1 repository
54 contributions in private repositories May 1 – May 17

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