first

flake.nix

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+# flake.nix
+
+{
+  description = "Portable Ubuntu setup with XFCE, XRDP, and swap";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs";
+    home-manager.url = "github:nix-community/home-manager";
+  };
+
+  outputs = { self, nixpkgs, home-manager }:
+    let
+      system = "x86_64-linux";
+      pkgs = import nixpkgs { inherit system; };
+    in {
+      # Define the dev shell environment with XFCE, XRDP, and utilities
+      devShell.${system} = pkgs.mkShell {
+        buildInputs = [
+          pkgs.xfce
+          pkgs.xfce.xfce4-terminal
+          pkgs.xrdp
+        ];
+      };
+
+      # Configuration for Home Manager, setting up XFCE and XRDP
+      homeConfigurations.gabriel = home-manager.lib.homeManagerConfiguration {
+        pkgs = import nixpkgs { inherit system; };
+        home.username = "gabriel";
+        home.homeDirectory = "/home/gabriel";
+
+        programs.bash.enable = true;
+        programs.xfce.enable = true;
+        services.xrdp.enable = true;
+      };
+
+      # System-level configuration for creating swap, user, etc.
+      systemConfigurations.ubuntuSetup = pkgs.lib.mkDefault {
+        users.users.gabriel = {
+          isNormalUser = true;
+          shell = pkgs.bashInteractive;
+          password = "hashedPassword"; # You can replace this with a more secure password handling mechanism
+        };
+
+        # Create a 2GB swap file
+        systemd.services.swapfile = {
+          enable = true;
+          serviceConfig.ExecStart = ''
+            fallocate -l 2G /swapfile
+            chmod 600 /swapfile
+            mkswap /swapfile
+            swapon /swapfile
+          '';
+          wantedBy = [ "multi-user.target" ];
+        };
+
+        # Set up the swap entry in /etc/fstab
+        system.fstab = [
+          {
+            device = "/swapfile";
+            mountPoint = "none";
+            fsType = "swap";
+            options = "sw";
+          }
+        ];
+      };
+    };
+}

setup.sh

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+#!/bin/bash
+
+# Step 1: Generate a random 8-character alphanumeric password
+PASSWORD=$(openssl rand -base64 6 | tr -dc 'A-Za-z0-9' | head -c 8)
+
+# Step 2: Write the password to password.txt
+echo "$PASSWORD" > password.txt
+echo "Password saved to password.txt."
+
+# Step 3: Echo the password to the terminal
+echo "The generated password is: $PASSWORD"
+
+# Step 4: Install Nix
+echo "Installing Nix package manager..."
+curl -L https://nixos.org/nix/install | sh
+. ~/.nix-profile/etc/profile.d/nix.sh
+
+# Step 5: Enable Flakes
+echo "Enabling Flakes in Nix configuration..."
+mkdir -p ~/.config/nix
+echo "experimental-features = nix-command flakes" | tee -a ~/.config/nix/nix.conf
+
+# Step 6: Install Home Manager
+echo "Installing Home Manager..."
+nix-channel --add https://github.com/nix-community/home-manager/archive/release-23.05.tar.gz home-manager
+nix-channel --update
+nix-shell '<home-manager>' -A install
+
+# Step 7: Run the Nix Flake to install and configure XFCE, XRDP, etc.
+echo "Setting up environment with Nix Flake and Home Manager..."
+nix develop
+home-manager switch --flake .#gabriel
+
+echo "Setup complete! XFCE, XRDP, and environment configurations applied."