diff --git a/IOStreams/OStreamable.h b/IOStreams/OStreamable.h
index cf0a153..15c8951 100644
--- a/IOStreams/OStreamable.h
+++ b/IOStreams/OStreamable.h
@@ -39,15 +39,14 @@ namespace Alepha::Hydrogen::IOStreams  ::detail::  OStreamable_m
 	{
 		const auto decomposed= Alepha::Reflection::tuplizeAggregate( ostreamable );
 		//static_assert( Capability< Agg, exports::OStreamable > );
+		auto delim= adaptStream( StartDelimitedList{ []( std::ostream &os ) { os << fieldDelimiter; } }, os );
 
-		bool first= true;
+		
 		// TODO: Consider the lens system here... but the basic use case seems to be for
 		// aggregates, so we'll go with this simple case for now...
 		tuple_for_each( decomposed ) <=[&]( const auto &element )
 		{
-			if( not first ) os << fieldDelimiter;
-			first= false;
-			os << element;
+			os << NextItem << element;
 		};
 
 		return os;
@@ -58,4 +57,3 @@ namespace Alepha::Hydrogen::IOStreams::inline exports::inline OStreamable_m
 {
 	using namespace detail::OStreamable_m::exports;
 }
-