diff --git a/renumics/spotlight_plugins/core/__init__.py b/renumics/spotlight_plugins/core/__init__.py
index d14dd27c..f741a4dd 100644
--- a/renumics/spotlight_plugins/core/__init__.py
+++ b/renumics/spotlight_plugins/core/__init__.py
@@ -21,6 +21,11 @@ def __register__() -> None:
     """
     register data sources
     """
+    from . import (
+        pandas_data_source,  # noqa: F401
+        hdf5_data_source,  # noqa: F401
+        huggingface_datasource,  # noqa: F401
+    )
 
 
 def __activate__(app: SpotlightApp) -> None:
diff --git a/renumics/spotlight_plugins/core/huggingface_datasource.py b/renumics/spotlight_plugins/core/huggingface_datasource.py
index 9a8e5fd2..fcd81e2b 100644
--- a/renumics/spotlight_plugins/core/huggingface_datasource.py
+++ b/renumics/spotlight_plugins/core/huggingface_datasource.py
@@ -45,10 +45,13 @@ def __init__(self, source: datasets.Dataset):
         super().__init__(source)
         self._dataset = source
         self._intermediate_dtypes = {
-            col: _dtype_from_feature(feat)
+            col: _dtype_from_feature(feat, True)
+            for col, feat in self._dataset.features.items()
+        }
+        self._guessed_dtypes = {
+            col: _dtype_from_feature(feat, False)
             for col, feat in self._dataset.features.items()
         }
-        self._guessed_dtypes = self._intermediate_dtypes
 
     @property
     def column_names(self) -> List[str]:
@@ -88,11 +91,23 @@ def get_column_values(
             raw_values = self._dataset.data[column_name].take(indices)
 
         feature = self._dataset.features[column_name]
-        if isinstance(feature, datasets.Audio):
+        if isinstance(feature, datasets.Audio) or isinstance(feature, datasets.Image):
             # TODO: use path for name if available?
+            return np.array(
+                [
+                    value["path"].as_py()
+                    if value["bytes"].as_py() is None
+                    else value["bytes"].as_py()
+                    for value in raw_values
+                ],
+                dtype=object,
+            )
+        if isinstance(feature, dict):
             return np.array(
                 [value["bytes"].as_py() for value in raw_values], dtype=object
             )
+        if isinstance(feature, datasets.Sequence):
+            return raw_values.to_numpy()
         else:
             return raw_values.to_numpy()
 
@@ -100,7 +115,7 @@ def get_column_metadata(self, _: str) -> ColumnMetadata:
         return ColumnMetadata(nullable=True, editable=False)
 
 
-def _dtype_from_feature(feature: _FeatureType) -> DType:
+def _dtype_from_feature(feature: _FeatureType, intermediate: bool) -> DType:
     if isinstance(feature, datasets.Value):
         hf_dtype = cast(datasets.Value, feature).dtype
         if hf_dtype == "bool":
@@ -146,8 +161,28 @@ def _dtype_from_feature(feature: _FeatureType) -> DType:
     elif isinstance(feature, datasets.ClassLabel):
         return dtypes.CategoryDType(categories=cast(datasets.ClassLabel, feature).names)
     elif isinstance(feature, datasets.Audio):
+        if intermediate:
+            return dtypes.bytes_dtype
         return dtypes.audio_dtype
     elif isinstance(feature, datasets.Image):
+        if intermediate:
+            return dtypes.bytes_dtype
         return dtypes.image_dtype
+    elif isinstance(feature, datasets.Sequence):
+        if isinstance(feature.feature, datasets.Value):
+            if feature.length != -1:
+                return dtypes.embedding_dtype
+            return dtypes.array_dtype
+        else:
+            raise UnsupportedFeature(feature)
+    elif isinstance(feature, dict):
+        if len(feature) == 2 and "bytes" in feature and "path" in feature:
+            if intermediate:
+                return dtypes.bytes_dtype
+            else:
+                # TODO: guess filetype from bytes
+                return dtypes.str_dtype
+        else:
+            raise UnsupportedFeature(feature)
     else:
         raise UnsupportedFeature(feature)
diff --git a/src/datatypes.ts b/src/datatypes.ts
index 6ac98b87..29ed7bca 100644
--- a/src/datatypes.ts
+++ b/src/datatypes.ts
@@ -35,7 +35,7 @@ export type IntegerDataType = BaseDataType<'int'>;
 export type FloatDataType = BaseDataType<'float'>;
 export type BooleanDataType = BaseDataType<'bool'>;
 export type DateTimeDataType = BaseDataType<'datetime'>;
-export type ArrayDataType = BaseDataType<'array'>;
+export type ArrayDataType = BaseDataType<'array', true>;
 export type WindowDataType = BaseDataType<'Window'>;
 export type StringDataType = BaseDataType<'str', true>;
 export type EmbeddingDataType = BaseDataType<'Embedding', true>;
diff --git a/src/stores/dataset/columnFactory.ts b/src/stores/dataset/columnFactory.ts
index 3ec20678..26018d58 100644
--- a/src/stores/dataset/columnFactory.ts
+++ b/src/stores/dataset/columnFactory.ts
@@ -11,7 +11,6 @@ function makeDatatype(column: Column): DataType {
         case 'float':
         case 'bool':
         case 'Window':
-        case 'array':
         case 'datetime':
             return {
                 kind,
@@ -20,6 +19,7 @@ function makeDatatype(column: Column): DataType {
                 optional: column.optional,
             };
         case 'str':
+        case 'array':
         case 'Embedding':
             return {
                 kind,