diff --git a/src/indexing/projection.rs b/src/indexing/projection.rs
index 14fb4ea..5bd6285 100644
--- a/src/indexing/projection.rs
+++ b/src/indexing/projection.rs
@@ -22,6 +22,8 @@ use std::collections::HashSet;
 
 const DERIVED_LDRAW_PROVENANCE: &str = "ordinary-part";
 
+type OrdinarySource = (Vec<String>, Vec<u8>, i64, String, String);
+
 /// A repo-record projection event, decoupled from Hydrant's internal types so
 /// the projection can be unit-tested with synthetic data.
 #[derive(Debug, Clone)]
@@ -957,10 +959,7 @@ async fn rebuild_ordinary_ldraw_resources(tx: &mut Transaction<'_, Sqlite>) -> a
     Ok(())
 }
 
-fn parse_ordinary_source(
-    file_json: &str,
-    resource_uri: &AtUri,
-) -> anyhow::Result<(Vec<String>, Vec<u8>, i64, String, String)> {
+fn parse_ordinary_source(file_json: &str, resource_uri: &AtUri) -> anyhow::Result<OrdinarySource> {
     let file: File = serde_json::from_str(file_json)?;
     let digest = file
         .digest
diff --git a/src/ldraw/paths.rs b/src/ldraw/paths.rs
index c6afb66..25d4869 100644
--- a/src/ldraw/paths.rs
+++ b/src/ldraw/paths.rs
@@ -46,6 +46,7 @@ pub fn project_part_path(
 /// The rkey is deliberately returned unchanged: Jacquard's validated rkey is
 /// already a safe relative path segment. This is a pure inverse of the
 /// authority encoding and is useful for route/path round-trip tests.
+#[cfg(test)]
 pub fn decode_external_part_path(path: &CanonicalPath) -> Option<(String, String)> {
     let segments = path.segments().collect::<Vec<_>>();
     if segments.first().copied()? != "external" || segments.len() != 3 {
@@ -77,6 +78,7 @@ fn encode_identity_segment(value: &str) -> String {
     out
 }
 
+#[cfg(test)]
 fn decode_identity_segment(value: &str) -> Option<String> {
     let bytes = value.strip_prefix('x')?.as_bytes();
     let mut decoded = Vec::with_capacity(bytes.len());
@@ -103,6 +105,7 @@ fn hex_digit(value: u8) -> char {
     char::from(b"0123456789abcdef"[value as usize])
 }
 
+#[cfg(test)]
 fn from_hex(value: u8) -> Option<u8> {
     match value {
         b'0'..=b'9' => Some(value - b'0'),
@@ -285,7 +288,7 @@ mod tests {
             ("did:plc:alpha", "a.b"),
             ("did:plc:alpha", "a~b:c"),
         ] {
-            let part = AtUri::new_owned(&format!(
+            let part = AtUri::new_owned(format!(
                 "at://{authority}/space.polymodel.library.part/{rkey}"
             ))
             .unwrap();
diff --git a/src/viewer.rs b/src/viewer.rs
index f4e681c..27b04d1 100644
--- a/src/viewer.rs
+++ b/src/viewer.rs
@@ -1537,7 +1537,6 @@ impl WorkerBridgeState {
         } = signals;
         let mut renderer_failed = renderer_failed;
         let mut worker_ready = worker_ready;
-        let worker_capabilities = worker_capabilities;
 
         let opts = web_sys::WorkerOptions::new();
         opts.set_type(web_sys::WorkerType::Module);