diff --git a/internal/theme/repository.go b/internal/theme/repository.go
new file mode 100644
index 0000000..b961d85
--- /dev/null
+++ b/internal/theme/repository.go
@@ -0,0 +1,11 @@
+package theme
+
+import (
+	"context"
+	"html/template"
+)
+
+type Repository interface {
+	// TODO(toby3d): use Page context to find it's specific template.
+	Get(ctx context.Context) (*template.Template, error)
+}