diff --git a/pyproject.toml b/pyproject.toml
index 56d59eb..19bc918 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -44,7 +44,7 @@ dependencies = [
     "findmfpy",
     "kdepy>=1.1.8",
     "perlin-noise==1.13",
-    "frictionless",
+    "pandera[polars]",
     # TODO demote to optional again later, but necessary for pycharm right now
     "bfabric @ git+https://github.com/fgcz/bfabricPy.git@main",
     "app_runner @ git+https://github.com/fgcz/bfabricPy.git@main#egg=app_runner&subdirectory=app_runner",
diff --git a/src/depiction_targeted_preproc/panel/schema.py b/src/depiction_targeted_preproc/panel/schema.py
new file mode 100644
index 0000000..e712d04
--- /dev/null
+++ b/src/depiction_targeted_preproc/panel/schema.py
@@ -0,0 +1,13 @@
+import pandera.polars as pa
+
+
+class PanelMainSchema(pa.DataFrameModel):
+    label: str
+    mass: float = pa.Field(gt=0)
+    type: str = pa.Field(isin=["standard", "target"])
+
+
+class PanelVisualizeSchema(pa.DataFrameModel):
+    label: str
+    mass: float = pa.Field(gt=0)
+    tol: float = pa.Field(gt=0)
diff --git a/src/depiction_targeted_preproc/panel/schema/panel_main.resource.yaml b/src/depiction_targeted_preproc/panel/schema/panel_main.resource.yaml
deleted file mode 100644
index 863aa9e..0000000
--- a/src/depiction_targeted_preproc/panel/schema/panel_main.resource.yaml
+++ /dev/null
@@ -1,8 +0,0 @@
-fields:
-  - name: label
-    type: string
-  - name: mass
-    type: number
-  - name: type
-    type: string
-    categories: [target, standard]
diff --git a/src/depiction_targeted_preproc/panel/schema/panel_visualize.resource.yaml b/src/depiction_targeted_preproc/panel/schema/panel_visualize.resource.yaml
deleted file mode 100644
index da2d912..0000000
--- a/src/depiction_targeted_preproc/panel/schema/panel_visualize.resource.yaml
+++ /dev/null
@@ -1,7 +0,0 @@
-fields:
-  - name: label
-    type: string
-  - name: mass
-    type: number
-  - name: tol
-    type: number