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# Welcome to the contributing guide for PeerTube
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Interested in contributing? Awesome!
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**This guide will present you the following contribution topics:**
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* [Translate ](#translate )
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* [Give your feedback ](#give-your-feedback )
* [Write documentation ](#write-documentation )
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* [Improve the website ](#improve-the-website )
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* [Develop ](#develop )
* [Write a plugin or a theme ](#plugins--themes )
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## Translate
You can help us to translate the PeerTube interface to many languages! See [the documentation ](/support/doc/translation.md ) to know how.
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## Give your feedback
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You don't need to know how to code to start contributing to PeerTube! Other
contributions are very valuable too, among which: you can test the software and
report bugs, you can give feedback on potential bugs, features that you are
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interested in, user interface, design, decentralized architecture...
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## Write documentation
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You can help to write the documentation of the REST API, code, architecture,
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demonstrations.
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For the REST API you can see the documentation in [/support/doc/api ](https://github.com/Chocobozzz/PeerTube/tree/develop/support/doc/api ) directory.
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Then, you can just open the `openapi.yaml` file in a special editor like [http://editor.swagger.io/ ](http://editor.swagger.io/ ) to easily see and edit the documentation.
Some hints:
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* Routes are defined in [/server/controllers/ ](https://github.com/Chocobozzz/PeerTube/tree/develop/server/controllers ) directory
* Parameters validators are defined in [/server/middlewares/validators ](https://github.com/Chocobozzz/PeerTube/tree/develop/server/middlewares/validators ) directory
* Models sent/received by the controllers are defined in [/shared/models ](https://github.com/Chocobozzz/PeerTube/tree/develop/shared/models ) directory
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## Improve the website
PeerTube's website is [joinpeertube.org ](https://joinpeertube.org ), where people can learn about the project and how it works – note that it is not a PeerTube instance, but rather the project's homepage.
You can help us improve it too!
It is not hosted on GitHub but on [Framasoft ](https://framasoft.org/ )'s own [GitLab ](https://about.gitlab.com/ ) instance, [FramaGit ](https://framagit.org ): https://framagit.org/framasoft/peertube/joinpeertube
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## Develop
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Don't hesitate to talk about features you want to develop by creating/commenting an issue
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before you start working on them :).
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### Prerequisites
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First, you should use a server or PC with at least 4GB of RAM. Less RAM may lead to crashes.
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Make sure that you have followed
[the steps ](/support/doc/dependencies.md )
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to install the dependencies. You'll need to install **NodeJS 10** .
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Fork the github repository,
and then clone the sources and install node modules:
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```
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$ git clone https://github.com/Chocobozzz/PeerTube
$ git remote add me git@github.com:YOUR_GITHUB_USERNAME/PeerTube.git
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$ cd PeerTube
$ yarn install --pure-lockfile
```
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Note that development is done on the `develop` branch. If you want to hack on
Peertube, you should switch to that branch. Also note that you have to repeat
the `yarn install --pure-lockfile` command.
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When you create a new branch you should also tell to use your repo for upload
not default one. To do just do:
```
$ git push --set-upstream me < your branch name >
```
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Then, create a postgres database and user with the values set in the
`config/default.yaml` file. For instance, if you do not change the values
there, the following commands would create a new database called `peertube_dev`
and a postgres user called `peertube` with password `peertube` :
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```
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# sudo -u postgres createuser -P peertube
Enter password for new role: peertube
# sudo -u postgres createdb -O peertube peertube_dev
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```
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Then enable extensions PeerTube needs:
```
$ sudo -u postgres psql -c "CREATE EXTENSION pg_trgm;" peertube_dev
$ sudo -u postgres psql -c "CREATE EXTENSION unaccent;" peertube_dev
```
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In dev mode, administrator username is **root** and password is **test** .
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### Online development
You can get a complete PeerTube development setup with Gitpod, a free one-click online IDE for GitHub:
[![Open in Gitpod ](https://gitpod.io/button/open-in-gitpod.svg )](https://gitpod.io/#https://github.com/Chocobozzz/PeerTube)
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### Server side
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You can find a documentation of the server code/architecture [here ](https://docs.joinpeertube.org/#/contribute-architecture?id=server-code ).
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To develop on the server-side:
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```
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$ npm run dev:server
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```
Then, the server will listen on `localhost:9000` . When server source files
change, these are automatically recompiled and the server will automatically
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restart.
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### Client side
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You can find a documentation of the client code/architecture
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[here ](https://docs.joinpeertube.org/#/contribute-architecture?id=client-code ).
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To develop on the client side:
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```
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$ npm run dev:client
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```
The API will listen on `localhost:9000` and the frontend on `localhost:3000` .
Client files are automatically compiled on change, and the web browser will
reload them automatically thanks to hot module replacement.
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### Client and server side
The API will listen on `localhost:9000` and the frontend on `localhost:3000` .
File changes are automatically recompiled, injected in the web browser (no need to refresh manually)
and the web server is automatically restarted.
```
$ npm run dev
```
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### Testing the federation of PeerTube servers
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Create a PostgreSQL user **with the same name as your username** in order to avoid using the *postgres* user.
Then, we can create the databases (if they don't already exist):
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```
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$ sudo -u postgres createuser you_username --createdb
$ createdb -O peertube peertube_test{1,2,3}
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```
Build the application and flush the old tests data:
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```
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$ npm run build -- --light
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$ npm run clean:server:test
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```
This will run 3 nodes:
```
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$ npm run play
```
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Then you will get access to the three nodes at `http://localhost:900{1,2,3}`
with the `root` as username and `test{1,2,3}` for the password.
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Instance configurations are in `config/test-{1,2,3}.yaml` .
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### Unit tests
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Create a PostgreSQL user **with the same name as your username** in order to avoid using the *postgres* user.
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Then, we can create the databases (if they don't already exist):
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```
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$ sudo -u postgres createuser you_username --createdb --superuser
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$ npm run clean:server:test
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```
Build the application and run the unit/integration tests:
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```
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$ npm run build -- --light
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$ npm test
```
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If you just want to run 1 test:
```
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$ npm run mocha -- --exit -r ts-node/register -r tsconfig-paths/register --bail server/tests/api/index.ts
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```
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Instance configurations are in `config/test-{1,2,3,4,5,6}.yaml` .
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Note that only instance 2 has transcoding enabled.
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## Plugins & Themes
See the dedicated documentation: https://docs.joinpeertube.org/#/contribute-plugins