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Yukihiro "Matz" Matsumoto

@matz

Ruby Association,NaCl · Matsue, Japan · Since 2008

17y Member
369d Active streak
2026 Best year
3 Repos
6,478 Stars
336 Forks
9,009 Contribs
11K Followers
0 Following
29 PRs
37 Issues
10 Reviews
6 Gists
Language accuracy
  1. C 69%
  2. Ruby 28%
  3. C++ 1.2%
  4. Makefile 1.1%
  5. Shell 0.4%
  6. Yacc 0.1%
Click to expand

Activity · last 12 months

9,009 · Longest streak · 369d
  • Commits 8,918 · 99%
  • Pull requests 29 · 0%
  • Issues 37 · 0%
  • Code reviews 10 · 0%
5-year trend
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Achievements earned
Open Source Enthusiast Consistent Popular Prolific Committer Long Timer

Top languages

Primary: C
  • C 69%
  • Ruby 28%
  • C++ 1%
  • Makefile 1%
  • Shell 0%
  • Yacc 0%
Tech stack seen

8 distinct languages used across every repository.

Top repositories

3 public
  • streem
    C 4,595

    prototype of stream based programming language

  • spinel
    C 1,880

    Ruby AOT compiler

  • spin-index
    3

    The spinelgems index: a git-hosted name -> (repo, releases) map for spin (no server)

Repository timeline

60% Profile score
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