diff --git a/lib/libnx/include/nx/nso.h b/lib/libnx/include/nx/nso.h
new file mode 100644
index 0000000..f0462cf
--- /dev/null
+++ b/lib/libnx/include/nx/nso.h
@@ -0,0 +1,69 @@
+#pragma once
+#include <string>
+#include <fnd/types.h>
+#include <fnd/List.h>
+#include <crypto/aes.h>
+#include <crypto/sha.h>
+#include <crypto/rsa.h>
+#include <fnd/ISerialiseableBinary.h>
+
+namespace nx
+{
+	namespace nso
+	{
+		const std::string kNsoSig = "NSO0";
+
+		enum HeaderFlags
+		{
+			FLAG_TEXT_COMPRESS,
+			FLAG_RO_COMPRESS,
+			FLAG_DATA_COMPRESS,
+			FLAG_TEXT_HASH,
+			FLAG_RO_HASH,
+			FLAG_DATA_HASH
+		}
+
+		static const size_t kModuleIdLen = 32;
+	}
+	
+#pragma pack(push,1)
+	struct sNsoCodeSegment
+	{
+		le_uint32_t file_offset;
+		le_uint32_t memory_offset;
+		le_uint32_t size;
+	};
+
+	struct sNsoSection
+	{
+		le_uint32_t offset;
+		le_uint32_t size;
+	}
+
+	struct sNsoHeader
+	{
+		char signature[4];
+		le_uint32_t version;
+		byte_t reserved_1[4];
+		le_uint32_t flags;
+		sNsoCodeSegment text;
+		le_uint32_t module_name_offset;
+		sNsoCodeSegment ro;
+		le_uint32_t module_name_size;
+		sNsoCodeSegment data;
+		le_uint32_t bss_size;
+		byte_t module_id[nso::kModuleIdLen];
+		le_uint32_t text_file_size;
+		le_uint32_t ro_file_size;
+		le_uint32_t data_file_size;
+		byte_t reserved_2[28];
+		sNsoSection embedded;
+		sNsoSection dyn_str;
+		sNsoSection dyn_sym;
+		byte_t text_hash[crypto::sha::kSha256HashLen];
+		byte_t ro_hash[crypto::sha::kSha256HashLen];
+		byte_t data_hash[crypto::sha::kSha256HashLen];
+	};
+
+#pragma pack(pop)
+}