diff --git a/container/src/root/common/type.hh b/container/src/root/common/type.hh
new file mode 100644
index 0000000..a9be988
--- /dev/null
+++ b/container/src/root/common/type.hh
@@ -0,0 +1,130 @@
+// docker-finance | modern accounting for the power-user
+//
+// Copyright (C) 2021-2025 Aaron Fiore (Founder, Evergreen Crypto LLC)
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+//! \file
+//! \author Aaron Fiore (Founder, Evergreen Crypto LLC)
+//! \note File intended to be loaded into ROOT.cern framework / Cling interpreter
+//! \since docker-finance 1.1.0
+
+#ifndef CONTAINER_SRC_ROOT_COMMON_TYPE_HH_
+#define CONTAINER_SRC_ROOT_COMMON_TYPE_HH_
+
+#include <stdexcept>
+#include <string_view>
+
+//! \brief Conditional throw handler
+//! \ingroup cpp_type_exceptions
+#define THROW_IF(condition, exception, message) \
+  if (condition)                                \
+    THROW(exception, message);
+
+//! \brief Throw handler
+//! \ingroup cpp_type_exceptions
+#define THROW(exception, message) \
+  THROW_IMPL(exception, \
+      \n\tFILE = __FILE__ \
+      \n\tLINE = __LINE__ \
+      \n\tWHAT = message);
+
+//! \brief Throw handler implementation
+//! \warning Should not be called directly, use THROW handlers
+//! \ingroup cpp_type_exceptions
+#define THROW_IMPL(exception, message) \
+  throw exception(THROW_IMPL_EXPAND(message));
+
+//! \brief Throw handler implementation (message)
+//! \warning Should not be called directly, use THROW handlers
+//! \ingroup cpp_type_exceptions
+#define THROW_IMPL_EXPAND(message) #message
+
+//! \namespace dfi
+//! \since docker-finance 1.0.0
+namespace dfi
+{
+//! \namespace dfi::common
+//! \brief Shared common functionality
+//! \since docker-finance 1.1.0
+namespace common
+{
+//! \namespace dfi::common::type
+//! \brief docker-finance defined common types
+//! \since docker-finance 1.1.0
+namespace type
+{
+//! \brief Base exception class
+//! \ingroup cpp_type_exceptions
+class Exception : virtual public std::exception
+{
+ public:
+  //! \brief Exception type
+  enum struct kType : uint8_t
+  {
+    RuntimeError,
+    InvalidArgument,
+  };
+
+  //! \brief Construct by type with given message
+  Exception(const kType type, const std::string_view what)
+      : m_type(type), m_what(what)
+  {
+  }
+  virtual ~Exception() = default;
+
+  Exception(const Exception&) = default;
+  Exception& operator=(const Exception&) = default;
+
+  Exception(Exception&&) = default;
+  Exception& operator=(Exception&&) = default;
+
+ public:
+  //! \return Exeption type
+  kType type() const noexcept { return m_type; }
+
+  //! \return Exception message
+  const char* what() const noexcept { return m_what.data(); }
+
+ private:
+  kType m_type;
+  std::string_view m_what;
+};
+
+//! \brief Exception class for runtime errors
+//! \ingroup cpp_type_exceptions
+struct RuntimeError final : public Exception
+{
+  explicit RuntimeError(const std::string_view what = {})
+      : Exception(Exception::kType::RuntimeError, what)
+  {
+  }
+};
+
+//! \brief Exception class for invalid arguments (logic error)
+//! \ingroup cpp_type_exceptions
+struct InvalidArgument final : public Exception
+{
+  explicit InvalidArgument(const std::string_view what = {})
+      : Exception(Exception::kType::InvalidArgument, what)
+  {
+  }
+};
+}  // namespace type
+}  // namespace common
+}  // namespace dfi
+
+#endif  // CONTAINER_SRC_ROOT_COMMON_TYPE_HH_
+
+// # vim: sw=2 sts=2 si ai et
diff --git a/container/src/root/src/internal/type.hh b/container/src/root/src/internal/type.hh
index abb38d6..7238f34 100644
--- a/container/src/root/src/internal/type.hh
+++ b/container/src/root/src/internal/type.hh
@@ -30,30 +30,7 @@
 #include <string_view>
 #include <type_traits>
 
-//! \brief Conditional throw handler
-//! \ingroup cpp_type_exceptions
-#define THROW_IF(condition, exception, message) \
-  if (condition)                                \
-    THROW(exception, message);
-
-//! \brief Throw handler
-//! \ingroup cpp_type_exceptions
-#define THROW(exception, message) \
-  THROW_IMPL(exception, \
-      \n\tFILE = __FILE__ \
-      \n\tLINE = __LINE__ \
-      \n\tWHAT = message);
-
-//! \brief Throw handler implementation
-//! \warning Should not be called directly, use THROW handlers
-//! \ingroup cpp_type_exceptions
-#define THROW_IMPL(exception, message) \
-  throw exception(THROW_IMPL_EXPAND(message));
-
-//! \brief Throw handler implementation (message)
-//! \warning Should not be called directly, use THROW handlers
-//! \ingroup cpp_type_exceptions
-#define THROW_IMPL_EXPAND(message) #message
+#include "../../common/type.hh"
 
 //! \namespace dfi
 //! \since docker-finance 1.0.0
@@ -70,62 +47,20 @@ namespace internal
 //! \todo *_v for all the booleans
 namespace type
 {
-//! \brief Base exception class
-//! \ingroup cpp_type_exceptions
-class Exception : virtual public std::exception
-{
- public:
-  //! \brief Exception type
-  enum struct kType : uint8_t
-  {
-    RuntimeError,
-    InvalidArgument,
-  };
+//! \deprecated This will be removed in the v2 API; use `dfi::common::type` namespace instead
+//! \todo Remove in 2.0.0
+//! \since docker-finance 1.1.0
+using Exception = ::dfi::common::type::Exception;
 
-  //! \brief Construct by type with given message
-  Exception(const kType type, const std::string_view what)
-      : m_type(type), m_what(what)
-  {
-  }
-  virtual ~Exception() = default;
+//! \deprecated This will be removed in the v2 API; use `dfi::common::type` namespace instead
+//! \todo Remove in 2.0.0
+//! \since docker-finance 1.1.0
+using RuntimeError = ::dfi::common::type::RuntimeError;
 
-  Exception(const Exception&) = default;
-  Exception& operator=(const Exception&) = default;
-
-  Exception(Exception&&) = default;
-  Exception& operator=(Exception&&) = default;
-
- public:
-  //! \return Exeption type
-  kType type() const noexcept { return m_type; }
-
-  //! \return Exception message
-  const char* what() const noexcept { return m_what.data(); }
-
- private:
-  kType m_type;
-  std::string_view m_what;
-};
-
-//! \brief Exception class for runtime errors
-//! \ingroup cpp_type_exceptions
-struct RuntimeError final : public Exception
-{
-  explicit RuntimeError(const std::string_view what = {})
-      : Exception(Exception::kType::RuntimeError, what)
-  {
-  }
-};
-
-//! \brief Exception class for invalid arguments (logic error)
-//! \ingroup cpp_type_exceptions
-struct InvalidArgument final : public Exception
-{
-  explicit InvalidArgument(const std::string_view what = {})
-      : Exception(Exception::kType::InvalidArgument, what)
-  {
-  }
-};
+//! \deprecated This will be removed in the v2 API; use `dfi::common::type` namespace instead
+//! \todo Remove in 2.0.0
+//! \since docker-finance 1.1.0
+using InvalidArgument = ::dfi::common::type::InvalidArgument;
 
 //! \ingroup cpp_type_traits
 template <typename t_type>