cherrypick/docs/setup.en.md

Misskey Setup and Installation Guide
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We thank you for your interest in setting up your Misskey server!
This guide describes how to install and setup Misskey.

[Japanese version also available - 日本語版もあります](./setup.ja.md)

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*1.* reCAPTCHA tokens
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Misskey requires reCAPTCHA tokens.
Please visit https://www.google.com/recaptcha/intro/ and generate keys.

*(optional)* Generating VAPID keys
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If you want to enable ServiceWroker, you need to generate VAPID keys:

``` shell
npm install web-push -g
web-push generate-vapid-keys
```

*2.* Install dependencies
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Please install and setup these softwares:

#### Dependencies :package:
* *Node.js* and *npm*
* **[MongoDB](https://www.mongodb.com/)**
* **[Redis](https://redis.io/)**
* **[ImageMagick](http://www.imagemagick.org/script/index.php)** >= 7.0

##### Optional
* [Elasticsearch](https://www.elastic.co/) - used to provide searching feature instead of MongoDB

*3.* Install Misskey
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1. `git clone -b master git://github.com/syuilo/misskey.git`
2. `cd misskey`
3. `npm install`

*4.* Prepare configuration
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You need to generate config file via `npm run config` command.

*5.* Build Misskey
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Build misskey with the following:

`npm run build`

If you're on Debian, you will need to install the `build-essential` package.

If you're still encountering errors about some modules, use node-gyp:

1. `npm install -g node-gyp`
2. `node-gyp configure`
3. `node-gyp build`
4. `npm run build`

*6.* That is it.
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Well done! Now, you have an environment that run to Misskey.

### Launch
Just `sudo npm start`. GLHF!

### Way to Update to latest version of your Misskey
1. `git reset --hard && git pull origin master`
2. `npm install`
3. `npm run build`