Added post-installation WSL2 steps

blog/src/content/docs/start/getting-started.md

@@ -18,6 +18,7 @@ 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?
@@ -54,7 +55,6 @@ Check NVM repo for more details: https://github.com/nvm-sh/nvm.
 </details>
 :::
 
-
 ### Linux and macOS
 
 Open your terminal and run:
@@ -64,6 +64,7 @@ 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)?
@@ -73,30 +74,62 @@ Given that the wasp binary is built for x86 and not for arm64 (Apple Silicon), y
 ```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. 
+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**:
+:::caution[WSL2 Docker post installation steps]
+
+<details>
+  <summary>
+      Complete those steps to ensure that PostgreSQL and Docker work correctly with Wasp in WSL2.
+  </summary>
+It is recommended to complete those post-install steps in WSL, based on the official <a href="https://docs.docker.com/engine/install/linux-postinstall/#manage-docker-as-a-non-root-user">Docker</a> guide. These work if you are experiencing an error similar to <a href="https://github.com/wasp-lang/open-saas/issues/347">this</a> one.
+
+First, run
+
+```bash
+sudo groupadd docker
+```
+
+command to create the `docker` group in case it doesn't exist. If it exists, don't worry, just continue with next steps. After that, add your current user to docker group by running
+
+```bash
+sudo usermod -aG docker $USER
+```
+
+where $USER is your username. After that, log out and log back in to apply the changes. Finally, run
+
+```bash
+su -s $USER
+```
+
+</details>
+:::
+
+Once done, 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
 
@@ -117,6 +150,7 @@ You can install the Wasp VSCode extension by searching for "Wasp" in the Extensi
 ### Cloning the OpenSaaS template
 
 From the directory where you'd like to create your new project run:
+
 ```sh
 wasp new
 ```
@@ -187,8 +221,9 @@ This will install all the dependencies and start the app (client and server) for
 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`.
+
+- 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`.
 
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