diff --git a/TODO.md b/TODO.md
index 788e1d4..4d1232e 100644
--- a/TODO.md
+++ b/TODO.md
@@ -1,6 +1,8 @@
 # TODO
 
-**Last working on:** I fixed the frontmatter processing; now I should verify that the entire directory is being processed okay.
+- Fix the relative URL situation in the headers
+  - The link that's defined in header file should be relative to root, not the page being processed.
+  - How to handle this?
 
 ## Thoroughly test directory processing
 
diff --git a/cmd/zona/main.go b/cmd/zona/main.go
index f892939..e1d8a59 100644
--- a/cmd/zona/main.go
+++ b/cmd/zona/main.go
@@ -43,9 +43,17 @@ func main() {
 	}
 	settings := builder.GetSettings(*rootPath, "foobar")
 	// err := builder.Traverse(*rootPath, "foobar", settings)
+	// traverse the source and process file metadata
 	pm, err := builder.ProcessTraverse(*rootPath, "foobar", settings)
 	if err != nil {
 		fmt.Printf("Error: %s\n", err.Error())
+		os.Exit(1)
 	}
+	err = builder.BuildProcessedFiles(pm, settings)
+	if err != nil {
+		fmt.Printf("Error: %s\n", err.Error())
+		os.Exit(1)
+	}
+
 	fmt.Printf("%#v", pm)
 }
diff --git a/internal/builder/process.go b/internal/builder/process.go
index 1f2e2c0..b46cedb 100644
--- a/internal/builder/process.go
+++ b/internal/builder/process.go
@@ -53,7 +53,9 @@ func processFile(inPath string, entry fs.DirEntry, err error, outRoot string, se
 	var toProcess bool
 	var outPath string
 	var ext string
-	if !entry.IsDir() {
+	if entry.IsDir() {
+		return nil
+	} else {
 		ext = filepath.Ext(inPath)
 		outPath = util.ReplaceRoot(inPath, outRoot)
 		// NOTE: This could be an if statement, but keeping