> For the complete documentation index, see [llms.txt](https://docs.ltonetwork.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ltonetwork.com/node/workflow-node/installation-guide/macos.md).

# MacOS

## LTO Network full node

The LTO full node is comprised of a set of [Docker](https://www.docker.com/) containers. For development, use *docker compose* as orchestration tool.

### Docker Desktop

{% hint style="success" %}

1. Download [Docker Desktop for macOs](https://hub.docker.com/editions/community/docker-ce-desktop-mac).
2. Double-click `Docker.dmg` to open the installer, then drag Moby the whale to the Applications folder.
3. Double-click `Docker.app` in the Applications folder to start Docker.
   {% endhint %}

For more detailed instructions please read the [Installation guide in the Docker documentation](https://docs.docker.com/docker-for-mac/install/).

*Docker Desktop includes docker compose, so it's not needed to install that separately.*

### LTO full node

```
$ curl "https://raw.githubusercontent.com/legalthings/lto-deepdive/master/docker/dev/docker-compose.yml" -o docker-compose.yml
$ docker-compose up
```

## Live contracts tester

The live contract tester (`lctest`) is build on [Behat](http://behat.org/en/latest/) and runs on [PHP](https://php.net/). It requires PHP 7+ with the  *mongodb* and *yaml* PECL extension.

### PHP CLI

PHP 7 is pre-installed on macOS Mojave. Earlier versions of macOS need to update PHP using `brew`.

{% hint style="success" %}
Verify that you have a correct version of PHP by running `php -v` in the terminal.
{% endhint %}

### PECL extensions for PHP

```
$ pecl install mongodb
$ pecl install yaml
```

*The yaml extension requires* [*LibYAML*](https://pyyaml.org/wiki/LibYAML)*, which should be pre-installed on your system.* 

### lctest.phar

```
$ curl "https://github.com/legalthings/livecontracts-tester/raw/master/lctest.phar" -o lctest.phar
$ php lctest.phar --version
```


---

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