What is fable?

Fable is described in one sentence as a collection of small experiments and prototypes. The README does not explain what those experiments do, what problem they solve, or who they are for. The repository appears to be a personal workspace where the author groups related side projects together. The main thing the repository does is link to three other projects using a Git feature called submodules. A submodule is a way to embed one Git repository inside another, so that Fable can reference those external projects without copying their code directly. The three linked projects are: obsidian-web (stored under a folder called obsidian/, likely related to Obsidian, a note-taking tool), OS (a project with that single-letter name, stored in an OS/ folder), and video-editor (stored in a video-editor/ folder). Each of these lives in its own separate repository on GitHub. To actually download all the code, including the submodules, you need to clone the repository with a specific flag. The README includes the exact commands to do that, both for a fresh clone and for someone who already downloaded the repository without the submodules. Beyond the submodule list and clone instructions, the README provides no further detail about the purpose, status, or contents of any of the projects included. The repository is classified as JavaScript, though no further context is given about what the JavaScript code in these experiments covers.