diff --git a/cmake/ContourThirdParties.cmake b/cmake/ContourThirdParties.cmake
index ad659e92a3..c9b29517a2 100644
--- a/cmake/ContourThirdParties.cmake
+++ b/cmake/ContourThirdParties.cmake
@@ -150,7 +150,7 @@ else()
     set(THIRDPARTY_BUILTIN_termbench "(bench-headless disabled)")
 endif()
 
-set(BOXED_CPP_MINIMAL_VERSION "1.2.2")
+set(BOXED_CPP_MINIMAL_VERSION "1.3.0")
 if(COMMAND ContourThirdParties_Embed_boxed_cpp)
     ContourThirdParties_Embed_boxed_cpp()
     subproject_version(boxed-cpp boxed_cpp_version)
diff --git a/scripts/install-deps.ps1 b/scripts/install-deps.ps1
index f4f308540e..c2622abb58 100644
--- a/scripts/install-deps.ps1
+++ b/scripts/install-deps.ps1
@@ -26,9 +26,9 @@ $ThirdParties =
         Macro   = "termbench_pro"
     }
     [ThirdParty]@{
-        Folder  = "boxed-cpp-1.2.2";
-        Archive = "boxed-cpp-1.2.2.zip";
-        URI     = "https://github.com/contour-terminal/boxed-cpp/archive/refs/tags/v1.2.2.zip";
+        Folder  = "boxed-cpp-1.3.0";
+        Archive = "boxed-cpp-1.3.0.zip";
+        URI     = "https://github.com/contour-terminal/boxed-cpp/archive/refs/tags/v1.3.0.zip";
         Macro   = "boxed_cpp"
     }
 )
diff --git a/scripts/install-deps.sh b/scripts/install-deps.sh
index 4c2bc453bc..ae3c176cb6 100755
--- a/scripts/install-deps.sh
+++ b/scripts/install-deps.sh
@@ -110,7 +110,7 @@ fetch_and_unpack_termbenchpro()
 
 fetch_and_unpack_boxed()
 {
-    local boxed_cpp_version="1.2.2"
+    local boxed_cpp_version="1.3.0"
     fetch_and_unpack \
         boxed-cpp-$boxed_cpp_version \
         boxed-cpp-$boxed_cpp_version.tar.gz \
diff --git a/src/vtbackend/Hyperlink.h b/src/vtbackend/Hyperlink.h
index ac98e08b66..8306010c3a 100644
--- a/src/vtbackend/Hyperlink.h
+++ b/src/vtbackend/Hyperlink.h
@@ -60,13 +60,7 @@ struct HyperlinkInfo
     }
 };
 
-namespace detail
-{
-    struct HyperlinkTag
-    {
-    };
-} // namespace detail
-using HyperlinkId = boxed::boxed<uint16_t, detail::HyperlinkTag>;
+using HyperlinkId = boxed::boxed<uint16_t>;
 
 bool is_local(HyperlinkInfo const& hyperlink);
 
diff --git a/src/vtbackend/Image.h b/src/vtbackend/Image.h
index 6a3927a50e..6bea029ff8 100644
--- a/src/vtbackend/Image.h
+++ b/src/vtbackend/Image.h
@@ -29,10 +29,7 @@ enum class ImageFormat
     RGBA,
 };
 
-// clang-format off
-namespace detail { struct ImageId {}; }
-using ImageId = boxed::boxed<uint32_t, detail::ImageId>; // unique numerical image identifier
-// clang-format on
+using ImageId = boxed::boxed<uint32_t>; // unique numerical image identifier
 
 struct ImageStats
 {
@@ -198,11 +195,7 @@ class ImageFragment
     CellLocation _offset;
 };
 
-namespace detail
-{
-    struct ImageFragmentId;
-}
-using ImageFragmentId = boxed::boxed<uint16_t, detail::ImageFragmentId>;
+using ImageFragmentId = boxed::boxed<uint16_t>;
 
 inline bool operator==(ImageFragment const& a, ImageFragment const& b) noexcept
 {
diff --git a/src/vtbackend/primitives.h b/src/vtbackend/primitives.h
index 53b21fb618..bbfa52ea65 100644
--- a/src/vtbackend/primitives.h
+++ b/src/vtbackend/primitives.h
@@ -21,45 +21,15 @@ using LineCount = vtpty::LineCount;
 using ColumnCount = vtpty::ColumnCount;
 using PageSize = vtpty::PageSize;
 
-namespace detail::tags // {{{
-{
-    // clang-format off
-    // column types
-    struct ColumnOffset {};
-    struct ColumnPosition {};
-
-    // line types
-    struct LineOffset {};
-    struct ScrollOffset {};
-
-    // misc.
-    struct TabStopCount {};
-
-    // generic length
-    struct Length {};
-
-    // range
-    struct From {};
-    struct To {};
-
-    // margin
-    struct Top {};
-    struct Left {};
-    struct Bottom {};
-    struct Right {};
-    // clang-format on
-} // namespace detail::tags
-// }}}
-
 // {{{ Column types
 
 /// ColumnPosition represents the absolute column on the visibile screen area
 /// (usually the main page unless scrolled upwards).
 ///
 /// A column position starts at 1.
-using ColumnPosition = boxed::boxed<int, detail::tags::ColumnPosition>;
+using ColumnPosition = boxed::boxed<int>;
 
-using ColumnOffset = boxed::boxed<int, detail::tags::ColumnOffset>;
+using ColumnOffset = boxed::boxed<int>;
 
 // }}}
 // {{{ Line types
@@ -75,7 +45,7 @@ using MaxHistoryLineCount = std::variant<LineCount, Infinite>;
 ///
 /// *  0  is top-most line on main page
 /// *  -1 is the bottom most line in scrollback
-using LineOffset = boxed::boxed<int, detail::tags::LineOffset>;
+using LineOffset = boxed::boxed<int>;
 
 /// Represents the number of lines the viewport has been scrolled up into
 /// the scrollback lines history.
@@ -83,7 +53,7 @@ using LineOffset = boxed::boxed<int, detail::tags::LineOffset>;
 /// A value of 0 means that it is not scrolled at all (bottom), and
 /// a value equal to the number of scrollback lines means it is scrolled
 /// to the top.
-using ScrollOffset = boxed::boxed<int, detail::tags::ScrollOffset>;
+using ScrollOffset = boxed::boxed<int>;
 
 constexpr int operator*(LineCount a, ColumnCount b) noexcept
 {
@@ -222,10 +192,10 @@ struct ColumnRange
 // {{{ Range
 
 /// Represents the first value of a range.
-using From = boxed::boxed<int, detail::tags::From>;
+using From = boxed::boxed<int>;
 
 /// Represents the last value of a range (inclusive).
-using To = boxed::boxed<int, detail::tags::To>;
+using To = boxed::boxed<int>;
 
 // Range (e.g. a range of lines from X to Y).
 struct Range
@@ -248,10 +218,10 @@ struct Range
 
 // Rectangular operations
 //
-using Top = boxed::boxed<int, detail::tags::Top>;
-using Left = boxed::boxed<int, detail::tags::Left>;
-using Bottom = boxed::boxed<int, detail::tags::Bottom>;
-using Right = boxed::boxed<int, detail::tags::Right>;
+using Top = boxed::boxed<int>;
+using Left = boxed::boxed<int>;
+using Bottom = boxed::boxed<int>;
+using Right = boxed::boxed<int>;
 
 // Rectangular screen operations
 //
@@ -294,7 +264,7 @@ constexpr Range vertical(PageMargin m) noexcept
 // {{{ Length
 
 // Lengths and Ranges
-using Length = boxed::boxed<int, detail::tags::Length>;
+using Length = boxed::boxed<int>;
 
 // }}}
 // {{{ Coordinate types
@@ -380,7 +350,7 @@ constexpr GridSize::iterator end(GridSize const& s) noexcept
 // }}}
 // {{{ misc
 
-using TabStopCount = boxed::boxed<int, detail::tags::TabStopCount>;
+using TabStopCount = boxed::boxed<int>;
 
 // }}}
 // {{{ convenience methods
diff --git a/src/vtpty/ImageSize.h b/src/vtpty/ImageSize.h
index c219a3522b..29f5843dac 100644
--- a/src/vtpty/ImageSize.h
+++ b/src/vtpty/ImageSize.h
@@ -7,20 +7,11 @@
 
 namespace vtpty
 {
-
-// clang-format off
-namespace detail::tags
-{
-    struct Width {};
-    struct Height {};
-}
-// clang-format on
-
 /// Representsthe width in pixels of an image (see ImageSize).
-using Width = boxed::boxed<unsigned, detail::tags::Width>;
+using Width = boxed::boxed<unsigned>;
 
 /// Representsthe height in pixels of an image (see ImageSize).
-using Height = boxed::boxed<unsigned, detail::tags::Height>;
+using Height = boxed::boxed<unsigned>;
 
 /// ImageSize represents the 2-dimensional size of an image (pixmap).
 struct ImageSize
diff --git a/src/vtpty/PageSize.h b/src/vtpty/PageSize.h
index af90069cf9..bb0af17f5c 100644
--- a/src/vtpty/PageSize.h
+++ b/src/vtpty/PageSize.h
@@ -6,22 +6,11 @@
 
 namespace vtpty
 {
-
-namespace detail::tags
-{
-    struct LineCount
-    {
-    };
-    struct ColumnCount
-    {
-    };
-} // namespace detail::tags
-
 /// ColumnCount simply represents a number of columns.
-using ColumnCount = boxed::boxed<int, detail::tags::ColumnCount>;
+using ColumnCount = boxed::boxed<int>;
 
 /// LineCount represents a number of lines.
-using LineCount = boxed::boxed<int, detail::tags::LineCount>;
+using LineCount = boxed::boxed<int>;
 
 struct PageSize
 {
diff --git a/src/vtpty/Pty.h b/src/vtpty/Pty.h
index d00fd9f9a9..f07fc530c9 100644
--- a/src/vtpty/Pty.h
+++ b/src/vtpty/Pty.h
@@ -16,16 +16,8 @@
 namespace vtpty
 {
 
-namespace detail
-{
-    // clang-format off
-    struct PtyMasterHandle {};
-    struct PtySlaveHandle {};
-    // clang-format on
-} // namespace detail
-
-using PtyMasterHandle = boxed::boxed<std::uintptr_t, detail::PtyMasterHandle>;
-using PtySlaveHandle = boxed::boxed<std::uintptr_t, detail::PtySlaveHandle>;
+using PtyMasterHandle = boxed::boxed<std::uintptr_t>;
+using PtySlaveHandle = boxed::boxed<std::uintptr_t>;
 using PtyHandle = std::uintptr_t;
 
 class PtySlave