diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 45b5516..4fcb76f 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -48,6 +48,8 @@ jobs:
             target: aarch64
           - runner: ubuntu-22.04
             target: armv7
+          - runner: ubuntu-22.04
+            target: ppc64le
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5
diff --git a/python/openai_harmony/__init__.py b/python/openai_harmony/__init__.py
index 13b5fdd..33afbd7 100644
--- a/python/openai_harmony/__init__.py
+++ b/python/openai_harmony/__init__.py
@@ -708,6 +708,7 @@ __all__ = [
     "Author",
     "Content",
     "TextContent",
+    "DeveloperContent",
     "ToolDescription",
     "SystemContent",
     "Message",