diff --git a/.gitignore b/.gitignore
index d0a116be..2699986c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -49,4 +49,4 @@ CMakeUserPresets.json
 
 # cxxdraft-htmlgen
 docs/api_reference/src/source/
-docs/api_reference/gen/
+docs/api_reference/gen
diff --git a/.gitpod/Dockerfile b/.gitpod/Dockerfile
index cb1c901e..c26d34d2 100644
--- a/.gitpod/Dockerfile
+++ b/.gitpod/Dockerfile
@@ -17,3 +17,18 @@ RUN sudo install-packages \
   libjpeg-dev \
   libpng-dev \
   libz-dev
+
+# Install API reference dependencies
+RUN sudo install-packages \
+  haskell-stack \
+  graphviz \
+  nodejs \
+  npm \
+  ghc \
+  cabal-install
+RUN npm install split mathjax-full mathjax-node-sre
+RUN cabal update
+
+# Install MathJax-Node-CLI
+git clone https://github.com/mathjax/mathjax-node-cli --depth=1
+echo "export PATH=\"$PWD/mathjax-node-cli/bin:\$PATH\"" >> ~/.bashrc
diff --git a/src/core/include/mp-units/framework/quantity.h b/src/core/include/mp-units/framework/quantity.h
index fd495039..b2280ef0 100644
--- a/src/core/include/mp-units/framework/quantity.h
+++ b/src/core/include/mp-units/framework/quantity.h
@@ -314,25 +314,13 @@ public:
                                               convert_explicitly> ||
                          !std::convertible_to<Rep, typename quantity_like_traits<Q>::rep>) constexpr
   // NOLINTNEXTLINE(google-explicit-constructor, hicpp-explicit-conversions)
-  operator Q_() const& noexcept(
-    noexcept(quantity_like_traits<Q>::from_numerical_value(numerical_value_is_an_implementation_detail_)) &&
-    std::is_nothrow_copy_constructible_v<rep>)
+  operator Q_() const
+    noexcept(noexcept(quantity_like_traits<Q>::from_numerical_value(numerical_value_is_an_implementation_detail_)) &&
+             std::is_nothrow_copy_constructible_v<rep>)
   {
-    return quantity_like_traits<Q>::from_numerical_value(numerical_value_is_an_implementation_detail_).value;
-  }
-
-  template<typename Q_, QuantityLike Q = std::remove_cvref_t<Q_>>
-    requires detail::QuantityConvertibleTo<quantity, detail::quantity_like_type<Q>>
-  [[nodiscard]] explicit(is_specialization_of<decltype(quantity_like_traits<Q>::from_numerical_value(
-                                                numerical_value_is_an_implementation_detail_)),
-                                              convert_explicitly> ||
-                         !std::convertible_to<Rep, typename quantity_like_traits<Q>::rep>) constexpr
-  // NOLINTNEXTLINE(google-explicit-constructor, hicpp-explicit-conversions)
-  operator Q_() && noexcept(
-    noexcept(quantity_like_traits<Q>::from_numerical_value(numerical_value_is_an_implementation_detail_)) &&
-    std::is_nothrow_move_constructible_v<rep>)
-  {
-    return quantity_like_traits<Q>::from_numerical_value(std::move(numerical_value_is_an_implementation_detail_)).value;
+    return quantity_like_traits<Q>::from_numerical_value(
+             numerical_value_in(get_unit(quantity_like_traits<Q>::reference)))
+      .value;
   }
 
   // member unary operators