- Lemon's Resting Area (Administrator)
- Ivy Cafeteria
- Alice Project
- Japan KDE User Group (Member)
- GitHub: @Lemon73-Computing (here)
- GitLab: @lemon73
- KDE Invent: @futurelemon
- Lemon's Resting Area (Japanese)
- Lemon73 Blog (Japanese/English)
- LEC website (Japanese)
- Alice Novel (Japanese)