---
title: Getting Started
banner:
  content: |
    ⚠️ Open SaaS is now running on <a href='https://wasp-lang.dev'>Wasp v0.13</a>! If you're running an older version of Open SaaS, please follow the 
    <a href="https://wasp-lang.dev/docs/migrate-from-0-12-to-0-13">migration instructions here</a> ⚠️
---

This guide will help you get your new SaaS app up and running.

## Install Wasp

### Pre-requisites

You must have Node.js (and NPM) installed on your machine and available in `PATH` to use Wasp.
Your version of Node.js must be >= 18.

To switch easily between Node.js versions, we recommend using [nvm](https://github.com/nvm-sh/nvm).

:::note[Installing and using nvm]
<details>
  <summary>
    Need help with nvm?
  </summary>
  <div>

Install nvm via your OS package manager (`apt`, `pacman`, `homebrew`, ...) or via the [nvm](https://github.com/nvm-sh/nvm#install--update-script) install script.

Then, install a version of Node.js that you need:

```shell
nvm install 20
```

Finally, whenever you need to ensure a specific version of Node.js is used, run:

```shell
nvm use 20
```

to set the Node.js version for the current shell session.

You can run

```shell
node -v
```

to check the version of Node.js currently being used in this shell session.

Check NVM repo for more details: https://github.com/nvm-sh/nvm.

  </div>
</details>
:::


### Linux and macOS

Open your terminal and run:

```shell
curl -sSL https://get.wasp-lang.dev/installer.sh | sh
```

:::caution[Bad CPU type in executable]
<details>
  <summary>
    Are you getting this error on a Mac (Apple Silicon)?
  </summary>
Given that the wasp binary is built for x86 and not for arm64 (Apple Silicon), you'll need to install <a href='https://support.apple.com/en-us/HT211861'>Rosetta on your Mac</a> if you are using a Mac with Mx (M1, M2, ...). Rosetta is a translation process that enables users to run applications designed for x86 on arm64 (Apple Silicon). To install Rosetta, run the following command in your terminal

```bash
softwareupdate --install-rosetta
```
Once Rosetta is installed, you should be able to run Wasp without any issues.
:::

</details>

### Windows

In order to use Wasp on Windows, you need to install WSL2 (Windows Subsystem for Linux) and a Linux distribution of your choice. We recommend using Ubuntu. 

**You can refer to this [article](https://wasp-lang.dev/blog/2023/11/21/guide-windows-development-wasp-wsl) for a step by step guide to using Wasp in the WSL environment.** If you need further help, reach out to us on [Discord](https://discord.gg/rzdnErX).

Once in WSL2, run the following command in your **WSL2 environment**:
```sh
curl -sSL https://get.wasp-lang.dev/installer.sh | sh
```

:::caution[WSL2 and file system issues]
<details>
  <summary>
    Are you getting file system issues using WSL2?
  </summary>
If you are using WSL2, make sure that your Wasp project is not on the Windows file system, <b>but instead on the Linux file system</b>. Otherwise, Wasp won't be able to detect file changes, due to this <a href='https://github.com/microsoft/WSL/issues/4739'>issue in WSL2</a>.
</details>
:::  

### Finalize Installation

Run the following command to verify that Wasp was installed correctly:

```shell
wasp version
```

Also be sure to install the Wasp VSCode extension to get the best DX, e.g. syntax highlighting, code scaffolding, autocomplete, etc.

:::tip[Installing the Wasp VSCode Extension]
You can install the Wasp VSCode extension by searching for "Wasp" in the Extensions tab in VSCode, or by visiting the 🐝 [Wasp VSCode Extension](https://marketplace.visualstudio.com/items?itemName=wasp-lang.wasp) 🧑‍💻 homepage
:::

## Setting up your SaaS app

### Cloning the OpenSaaS template

From the directory where you'd like to create your new project run:
```sh
wasp new
```

Then select option `[3] saas` from the list of templates after entering the name of your project.

This will clone a **clean copy of the Open SaaS template** into a new directory! 🎉

### Start your DB

Before you start your app, you need to have a Postgres Database connected and running. With Wasp, that's super easy!

First, make sure you have **Docker installed and running**. If not, download and install it [here](https://www.docker.com/products/docker-desktop/)

With Docker running, open a new terminal window/tab and position yourself in the `app` directory:

```sh
cd app
```

Then run:

```sh
wasp start db
```

This will start and connect your app to a Postgres database for you. No need to do anything else! 🤯 Just make sure to leave this terminal window open in the background while developing. Once you terminate the process, your DB will no longer be available to your app.

Now let's create our very first database migration, to ensure the database has a correct schema. Open a new terminal tab/window and run the following command:

```sh
wasp db migrate-dev
```

This might take a bit since this is the first time you are running it and it needs to install all the
dependencies for your Wasp project.

In the future, you will also want to run `wasp db migrate-dev` whenever you make changes to your Prisma schema (Entities),
to apply those schema changes to the database.

Additionally, if you want to see or manage your DB via Prisma's DB Studio GUI, run:

```sh
wasp db studio
```

### Start your app

At this point, you should be positioned in the `app/` directory and have the database running in another terminal session.

Next, copy the `.env.server.example` file to `.env.server`.

```sh
cp .env.server.example .env.server
```

`.env.server` is where API keys for services like Stripe, email sender, and similar go, and this is where you will want to put them in later.
For now, you can leave it as it is (dummy API keys), this will be enough to run the app.

Then run:

```sh
wasp start
```

This will install all the dependencies and start the app (client and server) for you :)!

If the app doesn't open automatically in your browser, you can open it manually by visiting `http://localhost:3000` in your browser.

At this point, you should have:
 - your database running in one terminal session, likely on port `5432`.
 - your app running in another terminal session, the client likely on port `3000`, and the server likely on port `3001`.

#### Run Blog and Docs

This SaaS app comes with a docs and blog section built with the [Starlight template on top of the Astro](https://starlight.astro.build) framework. You can use this as a starting point for your own blog and documentation, if necessary.

If you do not need this, you can simply delete the `blog` folder from the root of the project.

If you want to run the Starlight docs and blog, first navigate to the `blog` folder:

```sh
cd ../blog
```

Then run:

```sh
npm install
```

Then start the development server:

```sh
npm run dev
```

Check the instructions in the terminal for the link to open the blog, it will typically be `https://localhost:4321/`.

## What's next?

Awesome! We have our new app ready and we know how to run both it and the blog/docs! Now, in the next section, we'll give you a quick "guided tour" of the different parts of the app we created and understand how it works.

:::tip[Star our Repo on GitHub! 🌟]
We've packed in a ton of features and love into this SaaS starter, and offer it all to you for free!

If you're finding this template and its guides useful, consider giving us [a star on GitHub](https://github.com/wasp-lang/wasp)
:::
