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+### Setting up WSL1 (Legacy Portion)
+
+1. Certain packages are required to build pokefirered. Install these packages by running the following command:
+
+    ```bash
+    sudo apt install build-essential git libpng-dev gdebi-core
+    ```
+    > Note: If the above command does not work, try the above command but replacing `apt` with `apt-get`.
+
+2. Once the packages have finished installing, download the devkitPro pacman package [here](https://github.com/devkitPro/pacman/releases). The file to download is `devkitpro-pacman.amd64.deb`.
+
+3. WSL has its own file system that's not accessible from Windows, but Windows files *are* accessible from WSL. To install the devkitPro package, you'll need to change to the **current working directory** where the package file was saved.
+
+    For example, if the package file was saved to **C:\Users\\_\<user>_\Downloads** (the Downloads location for most users), enter this command, where *\<user>* is your **Windows** username:
+
+    ```bash
+    cd /mnt/c/Users/<user>/Downloads
+    ```
+
+    > Note 1: The Windows C:\ drive is called /mnt/c/ in WSL.  
+    > Note 2: If the path has spaces, then the path must be wrapped with quotations, e.g. `cd     "/mnt/c/users/<user>/Downloads folder"`.  
+    > Note 3: Windows path names are case-insensitive so adhering to capitalization isn't needed
+
+4. Once the directory has been changed to the folder containing the devkitPro pacman package, run the following commands to install devkitARM.
+
+    ```bash
+    sudo gdebi devkitpro-pacman.amd64.deb
+    sudo dkp-pacman -Sy
+    sudo dkp-pacman -S gba-dev
+    ```
+
+    The last command will ask for the selection of packages to install. Just press Enter to install all of them, followed by entering Y to proceed with the installation.
+
+    > Note: `devkitpro-pacman.amd64.deb` is the expected filename of the devkitPro package downloaded (for the first command). If the downloaded package filename differs, then use that filename instead.
+
+5. Run the following command to set devkitPro related environment variables (alternatively, close and re-open WSL):
+    ```bash
+    source /etc/profile.d/devkit-env.sh
+    ```
+
+Proceed to [Choosing where to store pokefirered (WSL1) of the current INSTALL.md](/INSTALL.md#choosing-where-to-store-pokefirered-WSL1).