feat: setup distrobox module

modules/hosts/sirius/config.nix

@@ -23,6 +23,7 @@
           docker.nvidia.enable = true;
           qemu.enable = true;
           waydroid.enable = true;
+          distrobox.enable = true;
         };
       };
 

modules/nixos/virtualisation/distrobox.nix

@@ -0,0 +1,118 @@
+{
+  flake.modules.nixos.virtualisation =
+    {
+      config,
+      lib,
+      pkgs,
+      ...
+    }:
+    let
+      cfg = config.tnix.virtualisation;
+    in
+    {
+      options.tnix.virtualisation.distrobox = {
+        enable = lib.mkEnableOption "Enable DistroBox";
+      };
+
+      config = lib.mkIf cfg.distrobox.enable {
+        virtualisation.waydroid.enable = true;
+
+        environment.systemPackages = with pkgs; [
+          distrobox
+
+          (writeShellScriptBin "dbox-create" ''
+            #!/usr/bin/env bash
+
+            # 1. Initialize variables
+            IMAGE=""
+            NAME=""
+
+            # Array to hold optional arguments (like volumes)
+            declare -a EXTRA_ARGS
+
+            # 2. Parse arguments
+            while [[ $# -gt 0 ]]; do
+              case $1 in
+                -i|--image)
+                  IMAGE="$2"
+                  shift 2
+                  ;;
+                -n|--name)
+                  NAME="$2"
+                  shift 2
+                  ;;
+                -p|--profile)
+                  echo ":: Profile mode enabled: Mounting Nix store and user profiles (Read-Only)"
+                  # Add volume flags to the array
+                  EXTRA_ARGS+=( "--volume" "/nix/store:/nix/store:ro" )
+                  EXTRA_ARGS+=( "--volume" "/etc/profiles/per-user:/etc/profiles/per-user:ro" )
+                  EXTRA_ARGS+=( "--volume" "/etc/static/profiles/per-user:/etc/static/profiles/per-user:ro" )
+                  shift 1
+                  ;;
+                *)
+                  echo "Unknown option $1"
+                  exit 1
+                  ;;
+              esac
+            done
+
+            if [ -z "$IMAGE" ] || [ -z "$NAME" ]; then
+                echo "Usage: dbox-create -i <image> -n <name> [-p]"
+                exit 1
+            fi
+
+            # 3. Define the custom home path
+            CUSTOM_HOME="$HOME/Distrobox/$NAME"
+
+            echo "------------------------------------------------"
+            echo "Creating Distrobox: $NAME"
+            echo "Location: $CUSTOM_HOME"
+            echo "------------------------------------------------"
+
+            # 4. Run Distrobox Create
+            # We expand "''${EXTRA_ARGS[@]}" to properly pass the volume arguments
+            ${pkgs.distrobox}/bin/distrobox create \
+              --image "$IMAGE" \
+              --name "$NAME" \
+              --home "$CUSTOM_HOME" \
+              "''${EXTRA_ARGS[@]}"
+
+            # Check exit code
+            if [ $? -ne 0 ]; then
+                echo "Error: Distrobox creation failed."
+                exit 1
+            fi
+
+            # 5. Post-Creation: Symlink Config Files
+            echo "--> Linking configurations to $NAME..."
+
+            # Helper function to symlink
+            link_config() {
+                SRC="$1"
+                DEST="$2"
+                DEST_DIR=$(dirname "$DEST")
+
+                # Create parent directory if it doesn't exist
+                mkdir -p "$DEST_DIR"
+
+                if [ -e "$SRC" ]; then
+                    # ln -sf: symbolic link, force overwrite
+                    ln -sf "$SRC" "$DEST"
+                    echo "    [LINK] $DEST -> $SRC"
+                else
+                    echo "    [SKIP] $SRC not found on host"
+                fi
+            }
+
+            # Create Symlinks
+            link_config "$HOME/.zshrc"                "$CUSTOM_HOME/.zshrc"
+            link_config "$HOME/.zshenv"               "$CUSTOM_HOME/.zshenv"
+            link_config "$HOME/.config/fastfetch"     "$CUSTOM_HOME/.config/fastfetch"
+            link_config "$HOME/.config/starship.toml" "$CUSTOM_HOME/.config/starship.toml"
+
+            echo "--> Done! Enter via: distrobox enter $NAME"
+          '')
+        ];
+      };
+    };
+}