# Software Bill of Materials

This is an overview of the external software components (libraries, etc.) that
are used in fediverse.space.

## Backend
### Crawler and API
* [Elixir](https://elixir-lang.org/) (the language)
* [Phoenix](https://phoenixframework.org/) (the web framework)
* See [/backend/mix.env](/backend/mix.env) for a complete overview of
  dependencies

### Graph layout
* Java (the language)
* Gradle (to build)
* [Gephi toolkit](https://gephi.org/toolkit/)

## Frontend
* [React](https://reactjs.org/) (the UI framework)
* [Blueprint](https://blueprintjs.com/) (a collection of pre-existing UI components)
* [Cytoscape.js](http://js.cytoscape.org/) (for graph visualization)
* See [/frontend/package.json](/frontend/package.json) for a complete overview
  of dependencies

## Other
* [Docker](https://www.docker.com/) and
  [docker-compose](https://docs.docker.com/compose/overview/)
* The backend is deployed using [Dokku](http://dokku.viewdocs.io/dokku/).
* The frontend is hosted on [Netlify](https://www.netlify.com/)
* [GitLab](https://gitlab.com/) and GitLab CI/CD are used for project management and CI/CD.