| Artist | : | [JA][Keynote] Matz Keynote / Yukihiro "Matz" Matsumoto @yukihiro_matz |
| Title | : | RubyKaigi |
| Duration | : | 3051 |
| Source | : | Youtube |
| Type of file | : | Audio/Video (.mp3 .mp4) |
| Artist | : | [JA][Keynote] Matz Keynote / Yukihiro "Matz" Matsumoto @yukihiro_matz |
| Title | : | RubyKaigi |
| Duration | : | 3051 |
| Source | : | Youtube |
| Type of file | : | Audio/Video (.mp3 .mp4) |