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# Contributing
Information about contributing to Lemmy, whether it is translating, testing, designing or programming.
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## Issue tracking / Repositories
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- [GitHub (for issues and pull requests) ](https://github.com/LemmyNet/lemmy )
- [Gitea (only for pull requests) ](https://yerbamate.dev/LemmyNet/lemmy )
- [GitLab (only code-mirror) ](https://gitlab.com/dessalines/lemmy )
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## Translating
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Check out [Lemmy's Weblate ](https://weblate.yerbamate.dev/projects/lemmy/ ) for translations.
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## Architecture
### Front end
- The front end is written in `typescript` , using a react-like framework called [inferno ](https://infernojs.org/ ). All UI elements are reusable `.tsx` components.
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- The front end repository is [lemmy-isomorphic-ui ](https://github.com/LemmyNet/lemmy-isomorphic-ui ).
- The routes are at `src/shared/routes.ts` .
- The components are located in `src/shared/components` .
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### Back end
- The back end is written in `rust` , using `diesel` , and `actix` .
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- The server source code is split into main sections in `src` . These include:
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- `db` - The low level database actions.
- Database additions are done using diesel migrations. Run `diesel migration generate xxxxx` to add new things.
- `api` - The high level user interactions (things like `CreateComment` )
- `routes` - The server endpoints .
- `apub` - The activitypub conversions.
- `websocket` - Creates the websocket server.
## Linting / Formatting
- Every front and back end commit is automatically formatted then linted using `husky` , and `lint-staged` .
- Rust with `cargo fmt` and `cargo clippy` .
- Typescript with `prettier` and `eslint` .
