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+### Theme: Space Exploration
+
+#### Username: **astronaut**
+#### Password: **stardust123** (Note: Use a strong password in a real setup)
+#### Hostname: **spaceship**
+#### Domain Name: **galaxy.local**
+
+### Step-by-Step Opinionated Arch Linux Setup with Space Theme
+
+#### Step 1: Verify Boot Mode
+Ensure your system is booting in UEFI mode:
+```bash
+ls /sys/firmware/efi/efivars
+```
+If this directory exists, you are in UEFI mode.
+
+#### Step 2: Partition the Disk
+Format and mount the partitions:
+```bash
+mkfs.fat -F32 /dev/sda1  # EFI partition
+mkswap /dev/sda2         # Swap partition
+mkfs.ext4 /dev/sda3      # Root partition
+
+mount /dev/sda3 /mnt
+mkdir /mnt/boot
+mount /dev/sda1 /mnt/boot
+swapon /dev/sda2
+```
+
+#### Step 3: Install the Base System
+Install the base packages:
+```bash
+pacstrap /mnt base linux linux-firmware vim
+```
+
+#### Step 4: Generate `fstab`
+Generate the `fstab` file:
+```bash
+genfstab -U /mnt >> /mnt/etc/fstab
+```
+
+#### Step 5: Chroot into the New System
+Change root into the new system:
+```bash
+arch-chroot /mnt
+```
+
+#### Step 6: Set Locale and Timezone
+1. **Set locale**:
+   - Edit `/etc/locale.gen` to uncomment your locale (e.g., `en_US.UTF-8`):
+     ```bash
+     vim /etc/locale.gen
+     ```
+   - Generate the locale:
+     ```bash
+     locale-gen
+     ```
+
+2. **Set timezone**:
+   ```bash
+   ln -sf /usr/share/zoneinfo/America/New_York /etc/localtime
+   hwclock --systohc
+   ```
+
+#### Step 7: Set Hostname and Hosts
+1. **Set hostname**:
+   ```bash
+   echo "spaceship.galaxy.local" > /etc/hostname
+   ```
+
+2. **Edit `/etc/hosts`**:
+   ```bash
+   vim /etc/hosts
+   ```
+   Add the following lines:
+   ```
+   127.0.0.1	localhost
+   ::1		localhost
+   127.0.1.1	spaceship.galaxy.local	spaceship
+   ```
+
+#### Step 8: Set Root Password
+Set a strong password for the root user:
+```bash
+passwd
+```
+For this guide, we'll use `stardust123` as the root password.
+
+#### Step 9: Create a Regular User Account
+Create a user account and add it to the sudo group:
+```bash
+useradd -m astronaut
+usermod -aG sudo astronaut
+passwd astronaut
+```
+For this guide, we'll use `stardust123` as the user password.
+
+#### Step 10: Install Bootloader
+Install GRUB for UEFI:
+```bash
+pacman -S efibootmgr grub
+grub-install --target=x86_64-efi --efi-directory=/boot --bootloader-id=ArchLinux
+grub-mkconfig -o /boot/grub/grub.cfg
+```
+
+#### Step 11: Exit Chroot and Reboot
+Exit the chroot environment and reboot:
+```bash
+exit
+umount -R /mnt
+reboot
+```
+
+### Post-Installation Configuration
+
+#### Step 12: Secure SSH
+1. **Install SSH**:
+   ```bash
+   sudo pacman -S openssh
+   ```
+
+2. **Configure SSH**:
+   - Open the SSH configuration file:
+     ```bash
+     sudo nano /etc/ssh/sshd_config
+     ```
+   - Make the following changes:
+     - Change `PermitRootLogin` to `no`.
+     - Change `PasswordAuthentication` to `no`.
+     - Add `PubkeyAuthentication yes`.
+     - Add `AuthorizedKeysFile .ssh/authorized_keys`.
+   - Save the file and restart the SSH service:
+     ```bash
+     sudo systemctl enable sshd
+     sudo systemctl start sshd
+     ```
+
+3. **Set Up SSH Keys**:
+   - Generate an SSH key pair on your client machine:
+     ```bash
+     ssh-keygen -t rsa -b 4096
+     ```
+   - Copy the public key to your Arch Linux server:
+     ```bash
+     ssh-copy-id astronaut@your_server_ip
+     ```
+
+#### Step 13: Network Configuration
+1. **Install NetworkManager**:
+   ```bash
+   sudo pacman -S networkmanager
+   ```
+
+2. **Enable NetworkManager**:
+   ```bash
+   sudo systemctl enable NetworkManager
+   sudo systemctl start NetworkManager
+   ```
+
+3. **Configure DHCP for Ethernet**:
+   - Ensure the interface `enp0s25` (or whatever your interface is named) is set to use DHCP:
+     ```bash
+     nmcli d
+     nmcli con mod enp0s25 ipv4.method auto
+     nmcli con up enp0s25
+     ```
+
+#### Step 14: Install a Minimal Desktop Environment (Optional)
+If you want a minimal desktop environment, consider installing Xorg and a lightweight window manager like i3 or dwm.
+
+1. **Install Xorg**:
+   ```bash
+   sudo pacman -S xorg-server xorg-xinit
+   ```
+
+2. **Install a Window Manager**:
+   ```bash
+   sudo pacman -S i3
+   ```
+
+3. **Configure Xinit**:
+   - Create a `.xinitrc` file in your home directory:
+     ```bash
+     echo "exec i3" > ~/.xinitrc
+     ```
+
+4. **Start X**:
+   ```bash
+   startx
+   ```
+
+### Final Notes
+- **Firewall**: Consider setting up a firewall using `ufw` or `firewalld`.
+- **Regular Updates**: Regularly update your system using `sudo pacman -Syu`.
+- **Backup**: Regularly back up important data.
+
+This setup guide provides a secure, minimal, and opinionated configuration for Arch Linux with a fun space-themed scheme. Adjustments can be made based on your specific needs and preferences.
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