diff --git a/.github/codecov.yml b/.github/codecov.yml
index 145584a8..14994f63 100644
--- a/.github/codecov.yml
+++ b/.github/codecov.yml
@@ -11,6 +11,8 @@ coverage:
 # Test files aren't important for coverage
 ignore:
   - "tests"
+  - "hls"
+  - "book-lints"
 
 # Make comments less noisy
 comment:
diff --git a/.gitignore b/.gitignore
index 00b138d4..5465a761 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,7 +2,7 @@ target/
 generated.hpp
 map.hpp
 *.map
-*.pbo
+# *.pbo
 
 *.nupkg
 
diff --git a/libs/signing/tests/ace_ai.rs b/libs/signing/tests/ace_ai.rs
index 2f6a73fc..d36ff135 100644
--- a/libs/signing/tests/ace_ai.rs
+++ b/libs/signing/tests/ace_ai.rs
@@ -28,6 +28,13 @@ fn write() {
     assert_eq!(public_disk, buffer);
 
     // Do we generate the stored checksum?
+    println!("opening file: {:?}", file.join("source.pbo"));
+    println!("cwd: {:?}", std::env::current_dir().unwrap());
+    // print tree in cwd
+    for entry in std::fs::read_dir("./tests/ace_ai_3.15.2.69").unwrap() {
+        let entry = entry.unwrap();
+        println!("{:?}", entry.path());
+    }
     let mut pbo = ReadablePbo::from(File::open(file.join("source.pbo")).unwrap()).unwrap();
     let checksum = pbo.gen_checksum().unwrap();
     assert_eq!(&checksum, pbo.checksum());