diff --git a/examples/camera/dataflow.yml b/examples/camera/dataflow.yml
index 35a589da..e93d95e6 100644
--- a/examples/camera/dataflow.yml
+++ b/examples/camera/dataflow.yml
@@ -1,6 +1,6 @@
 nodes:
   - id: camera
-    build: pip install ../../node-hub/opencv-video-capture
+    build: pip install -e ../../node-hub/opencv-video-capture
     path: opencv-video-capture
     inputs:
       tick: dora/timer/millis/20
@@ -12,7 +12,7 @@ nodes:
       IMAGE_HEIGHT: 480
 
   - id: plot
-    build: pip install ../../node-hub/opencv-plot
+    build: pip install -e ../../node-hub/opencv-plot
     path: opencv-plot
     inputs:
       image:
diff --git a/node-hub/dora-rerun/Cargo.toml b/node-hub/dora-rerun/Cargo.toml
index 930d5d70..9dbf5638 100644
--- a/node-hub/dora-rerun/Cargo.toml
+++ b/node-hub/dora-rerun/Cargo.toml
@@ -23,6 +23,7 @@ k = "0.32"
 pyo3 = { workspace = true, features = [
     "extension-module",
     "abi3",
+    "eyre"
 ], optional = true }
 
 
diff --git a/node-hub/dora-rerun/src/lib.rs b/node-hub/dora-rerun/src/lib.rs
index 999f0f04..1edad25b 100644
--- a/node-hub/dora-rerun/src/lib.rs
+++ b/node-hub/dora-rerun/src/lib.rs
@@ -255,7 +255,7 @@ use pyo3::{
 #[pyfunction]
 fn py_main(_py: Python) -> PyResult<()> {
     pyo3::prepare_freethreaded_python();
-    lib_main().map_err(|e| pyo3::exceptions::PyException::new_err(e.to_string()))
+    lib_main()
 }
 
 /// A Python module implemented in Rust.