Specimen III · 02
The Odin Project
free high relevance
Fully free open-source full-stack curriculum
No premium tier ever. Ruby on Rails + JS/Node paths. Emphasizes real dev workflows (Git, terminal, local setup).
| Habitat | Learning |
| Access tier | free |
| Relevance to stack | high |
| Last active signal | 2026-06 active repos, 5K+ contributors |
| Verified alive | yes — pressed 2026 |
| Specimen no. | III · 02 |
| Live habitat | https://theodinproject.com |