diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..505a3b1
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,10 @@
+# Python-generated files
+__pycache__/
+*.py[oc]
+build/
+dist/
+wheels/
+*.egg-info
+
+# Virtual environments
+.venv
diff --git a/Dockerfile b/Dockerfile
index d842ecd..41c13c1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,7 +6,7 @@ ADD . /app
 WORKDIR /app
 
 RUN apt update
-RUN apt install -y curl
+RUN apt install -y curl libatomic1
 
 RUN uv python install
 RUN uv sync --frozen