Added the Localizable strings catalog to the library target and added some path component and path format keys to this catalog.

Library/Resources/Catalogs/Localizable.xcstrings

@@ -0,0 +1,61 @@
+{
+  "sourceLanguage" : "en",
+  "strings" : {
+    "path.component.forward-slash" : {
+      "extractionState" : "manual",
+      "localizations" : {
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "/"
+          }
+        }
+      }
+    },
+    "path.component.previous-folder" : {
+      "extractionState" : "manual",
+      "localizations" : {
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : ".."
+          }
+        }
+      }
+    },
+    "path.format.data" : {
+      "extractionState" : "manual",
+      "localizations" : {
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "/data/%@"
+          }
+        }
+      }
+    },
+    "path.format.docc-archive" : {
+      "extractionState" : "manual",
+      "localizations" : {
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "/%@.doccarchive"
+          }
+        }
+      }
+    },
+    "path.format.root" : {
+      "extractionState" : "manual",
+      "localizations" : {
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "/%@"
+          }
+        }
+      }
+    }
+  },
+  "version" : "1.0"
+}

Package.swift

@@ -4,6 +4,7 @@ import PackageDescription
 
 let package = Package(
     name: "DocCRepo",
+    defaultLocalization: "en",
     platforms: [
         .macOS(.v14)
     ],
@@ -31,7 +32,10 @@ let package = Package(
                 .product(name: "ArgumentParser", package: "swift-argument-parser"),
                 .product(name: "Hummingbird", package: "hummingbird")
             ],
-            path: "Library"
+            path: "Library",
+            resources: [
+                .process("Resources/Catalogs/Localizable.xcstrings")
+            ]
         ),
         .testTarget(
             name: "AppTests",