diff --git a/.cirrus.yml b/.cirrus.yml
index cb2e32861..61d6ab423 100644
--- a/.cirrus.yml
+++ b/.cirrus.yml
@@ -41,11 +41,16 @@ task:
     - git fetch --prune --tags ||:
     - ./bootstrap.sh
   configure_script: |
-    ./configure MAKE=gmake \
-      --enable-developer-mode LDOC=false LUAROCKS=false LUACHECK=false BUSTED=false DELTA=cat PDFINFO=false NIX=false NPM=false DOCKER=false STYLUA=false TYPOS=false \
+    ./configure \
+        DOCKER=false \
+        MAKE=gmake \
+        PDFINFO=false \
+      --enable-developer-mode \
+      --without-developer-tools \
       --disable-font-variations \
       --with-system-lua-sources \
       --with-system-luarocks \
+      --with-luarocks=luarocks51 \
       --without-manual
   make_script:
     - gmake all
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 742ae8318..04a1a9f79 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -49,7 +49,7 @@ jobs:
           ./bootstrap.sh
           ./configure \
             --enable-developer-mode \
-            BUSTED=false DELTA=false LDOC=false LUACHECK=false NIX=false STYLUA=false TYPOS=cat \
+            --without-developer-tools \
             --disable-font-variations \
             --with-manual \
             ${{ matrix.configuration[1] }}
@@ -113,8 +113,11 @@ jobs:
         run: |
           ./bootstrap.sh
           ./configure \
+              FCMATCH=true \
+              PDFINFO=false \
             --enable-developer-mode \
-            BUSTED=false DELTA=false LDOC=false LUACHECK=false NIX=false STYLUA=false TYPOS=cat FCMATCH=true PDFINFO=false CARGO=true \
+            --without-developer-tools \
+              DOCKER=$(which docker) \
             --disable-font-variations \
             --with-system-lua-sources \
             --without-manual
@@ -144,7 +147,7 @@ jobs:
             .sources
           key: fonts-${{ hashFiles('Makefile-fonts') }}
       - name: Install Nix
-        uses: DeterminateSystems/nix-installer-action@v15
+        uses: DeterminateSystems/nix-installer-action@v16
       - name: Cache Nix dependencies
         uses: DeterminateSystems/magic-nix-cache-action@v8
       - name: Setup developer environment
diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index c13962ee0..9653ead3e 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -60,7 +60,9 @@ jobs:
         run: |
           ./bootstrap.sh
           ./configure \
-            --enable-developer-mode LDOC=false LUACHECK=false NIX=false DELTA=cat STYLUA=false TYPOS=false \
+            --enable-developer-mode \
+            --without-developer-tools \
+              BUSTED=$(which busted) \
             --disable-font-variations \
             --without-manual
       - name: Make
diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 120557708..26c664348 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -30,20 +30,14 @@ jobs:
           echo "REF=${GITHUB_REF##refs/*/}" >> $GITHUB_ENV
           ./bootstrap.sh
           ./configure \
+              BSDTAR=false \
+              FCMATCH=true \
+              PDFINFO=false \
             --enable-developer-mode \
+            --without-developer-tools \
+              DOCKER=$(which docker) \
             --without-harfbuzz \
-            --disable-font-variations \
-            BSDTAR=false \
-            BUSTED=false \
-            DELTA=false \
-            FCMATCH=true \
-            LDOC=false \
-            LUACHECK=false \
-            LUAROCKS=false \
-            NIX=false \
-            PDFINFO=false \
-            STYLUA=false \
-            TYPOS=false
+            --disable-font-variations
       - name: Publish Docker Image to GH Container Registry
         run: |
           make docker-build-push
diff --git a/.github/workflows/nix.yml b/.github/workflows/nix.yml
index b3c0e2c2d..0d884eee4 100644
--- a/.github/workflows/nix.yml
+++ b/.github/workflows/nix.yml
@@ -16,7 +16,7 @@ jobs:
         with:
           fetch-depth: 0
       - name: Install Nix
-        uses: DeterminateSystems/nix-installer-action@v15
+        uses: DeterminateSystems/nix-installer-action@v16
       - name: Cache Nix dependencies
         uses: DeterminateSystems/magic-nix-cache-action@v8
       # Upstream package sometimes has flags set that disable flake checking
diff --git a/.github/workflows/stylua.yml b/.github/workflows/stylua.yml
index 4789ca225..fe3ac9fca 100644
--- a/.github/workflows/stylua.yml
+++ b/.github/workflows/stylua.yml
@@ -1,6 +1,6 @@
 name: StyLua
 
-on: [ workflow_dispatch ]
+on: [ push, pull_request ]
 
 jobs:
 
@@ -9,8 +9,9 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
-      - uses: JohnnyMorganz/stylua-action@v4
+      - name: StyLua
+        uses: JohnnyMorganz/stylua-action@v4
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
-          version: latest
+          version: 2.0.0
           args: --check --respect-ignores -g '*.lua' -g '*.lua.in' -g '*.rockspec.in' .busted .luacov .luacheckrc build-aux/config.ld .
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 1a6ba5bd8..c1b341294 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -71,7 +71,9 @@ jobs:
           ./bootstrap.sh
           ./configure \
             ${{ matrix.luaVersion[1] }} \
-            --enable-developer-mode LDOC=false LUACHECK=false NIX=false DELTA=cat STYLUA=false TYPOS=false \
+            --enable-developer-mode \
+            --without-developer-tools \
+              BUSTED=$(which busted) \
             --disable-font-variations \
             --with${{ !startsWith(matrix.luaVersion[0], 'luajit') && 'out' || '' }}-luajit \
             --without-system-luarocks \
diff --git a/Cargo.lock b/Cargo.lock
index 04309d132..78d768ad2 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1496,7 +1496,7 @@ checksum = "88f8660c1ff60292143c98d08fc6e2f654d722db50410e3f3797d40baaf9d8f3"
 
 [[package]]
 name = "rusile"
-version = "0.15.5"
+version = "0.15.6"
 dependencies = [
  "mlua",
  "sile",
diff --git a/Cargo.toml b/Cargo.toml
index c98d63ce7..36def3052 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,25 +1,3 @@
-[workspace]
-resolver = "2"
-members = [ ".", "rusile" ]
-
-  [workspace.package]
-  version = "0.15.5"
-  edition = "2021"
-  rust-version = "1.71.0"
-  authors = [
-  "Simon Cozens",
-  "Caleb Maclennan <caleb@alerque.com>",
-  "Olivier Nicole",
-  "Didier Willis"
-]
-  homepage = "https://sile-typesetter.org"
-  repository = "https://github.com/sile-typesetter/sile"
-  license = "MIT"
-
-[workspace.dependencies.mlua]
-version = "0.10"
-features = [ "anyhow" ]
-
 [package]
 name = "sile"
 description = "Simon’s Improved Layout Engine"
@@ -27,122 +5,92 @@ readme = "README.md"
 build = "build-aux/build.rs"
 version = "0.15.6"
 
-  [package.edition]
-  workspace = true
-
-  [package.rust-version]
-  workspace = true
-
-  [package.authors]
-  workspace = true
+[workspace.package]
+version = "0.15.6"
+edition = "2021"
+rust-version = "1.71.0"
+authors = [
+  "Simon Cozens",
+  "Caleb Maclennan <caleb@alerque.com>",
+  "Olivier Nicole",
+  "Didier Willis",
+]
+homepage = "https://sile-typesetter.org"
+repository = "https://github.com/sile-typesetter/sile"
+license = "MIT"
 
-  [package.homepage]
-  workspace = true
+[workspace]
+resolver = "2"
+members = [".", "rusile"]
 
-  [package.repository]
-  workspace = true
+[package.edition]
+workspace = true
 
-  [package.license]
-  workspace = true
+[package.rust-version]
+workspace = true
 
-[package.metadata.bacon.jobs]
-cmd = [ "cargo", "build", "--color", "always" ]
+[package.authors]
+workspace = true
 
-[package.metadata.typos.default]
-locale = "en-us"
-extend-ignore-re = [
-  "(?s)(#|//|--|%)\\s*typos: ignore start.*?\\n\\s*(#|//|--|%)\\s*typos: ignore end"
-]
-extend-ignore-identifiers-re = [
-  "[a-f0-9]{7}",
-  "^.{2,3}$",
-  "^twords?",
-  "[Pp]arms",
-  "wdth",
-  "0fpt",
-  "^ot",
-  "^hb_ot",
-  "^HB_",
-  "^Tyre$",
-  "PoDoFo",
-  "_Flate",
-  "pointint",
-  "DEPENDEES",
-  "EPdf",
-  "FileAttachement"
-]
+[package.homepage]
+workspace = true
 
-  [package.metadata.typos.default.extend-words]
-  beveled = "bevelled"
-  bevelled = "bevelled"
-  craters = "creators"
-  neet = "need"
+[package.repository]
+workspace = true
 
-[package.metadata.typos.files]
-ignore-hidden = false
-extend-exclude = [
-  "/.git",
-  "CHANGELOG.md",
-  "build-aux/ax*",
-  "languages/*/hyphens*",
-  "lua-libraries/*",
-  "lua_modules/*",
-  "node_modules/*",
-  "tests/*.expected",
-  "cmake/*.diff",
-  "libtexpdf"
-]
+[package.license]
+workspace = true
 
 [[bin]]
 name = "sile"
-required-features = [ "cli" ]
-
-[features]
-default = [
-  "cli",
-  "bash",
-  "elvish",
-  "fish",
-  "manpage",
-  "powershell",
-  "zsh"
-]
-lua54 = [ "mlua/lua54" ]
-lua53 = [ "mlua/lua53" ]
-lua52 = [ "mlua/lua52" ]
-lua51 = [ "mlua/lua51" ]
-luajit = [ "mlua/luajit" ]
-vendored = [ "mlua/vendored" ]
-static = [ "rust-embed" ]
-variations = [ ]
-completions = [ "cli", "clap_complete" ]
-cli = [ "clap" ]
-bash = [ "completions" ]
-elvish = [ "completions" ]
-fish = [ "completions" ]
-manpage = [ "clap_mangen" ]
-powershell = [ "completions" ]
-zsh = [ "completions" ]
+required-features = ["cli"]
 
 [profile.release]
 lto = true
 
+[features]
+default = ["cli", "bash", "elvish", "fish", "manpage", "powershell", "zsh"]
+lua54 = ["mlua/lua54"]
+lua53 = ["mlua/lua53"]
+lua52 = ["mlua/lua52"]
+lua51 = ["mlua/lua51"]
+luajit = ["mlua/luajit"]
+vendored = ["mlua/vendored"]
+static = ["rust-embed"]
+variations = []
+completions = ["cli", "clap_complete"]
+cli = ["clap"]
+bash = ["completions"]
+elvish = ["completions"]
+fish = ["completions"]
+manpage = ["clap_mangen"]
+powershell = ["completions"]
+zsh = ["completions"]
+
+[workspace.dependencies.mlua]
+version = "0.10"
+features = ["anyhow"]
+
+[workspace.dependencies.sile]
+path = "."
+version = "0.15.6"
+
 [dependencies.anyhow]
 version = "1.0"
 
 [dependencies.clap]
 version = "4.4"
 optional = true
-features = [ "derive", "string", "wrap_help" ]
+features = ["derive", "string", "wrap_help"]
 
 [dependencies.mlua]
 workspace = true
-features = [ "macros" ]
+features = ["macros"]
 
 [dependencies.rust-embed]
 version = "8.0"
 optional = true
-features = [ "include-exclude" ]
+features = ["include-exclude"]
 
 [dependencies.harfbuzz-sys]
 version = "0.5"
@@ -162,12 +110,57 @@ optional = true
 [build-dependencies.clap]
 version = "4.4"
 optional = true
-features = [ "derive" ]
+features = ["derive"]
 
 [build-dependencies.vergen]
 version = "8.2"
 default-features = false
-features = [ "build", "cargo", "git", "gitoxide" ]
+features = ["build", "cargo", "git", "gitoxide"]
 
 [package.metadata.docs.rs]
-features = [ "luajit", "vendored" ]
+features = ["luajit", "vendored"]
+
+[package.metadata.typos.default]
+locale = "en-us"
+extend-ignore-re = [
+  "(?s)(#|//|--|%)\\s*typos: ignore start.*?\\n\\s*(#|//|--|%)\\s*typos: ignore end",
+]
+extend-ignore-identifiers-re = [
+  "[a-f0-9]{7}",
+  "^.{2,3}$",
+  "^twords?",
+  "[Pp]arms",
+  "wdth",
+  "0fpt",
+  "^ot",
+  "^hb_ot",
+  "^HB_",
+  "^Tyre$",
+  "PoDoFo",
+  "_Flate",
+  "pointint",
+  "DEPENDEES",
+  "EPdf",
+  "FileAttachement",
+]
+
+[package.metadata.typos.default.extend-words]
+beveled = "bevelled"
+bevelled = "bevelled"
+craters = "creators"
+neet = "need"
+
+[package.metadata.typos.files]
+ignore-hidden = false
+extend-exclude = [
+  "/.git",
+  "CHANGELOG.md",
+  "build-aux/ax*",
+  "languages/*/hyphens*",
+  "lua-libraries/*",
+  "lua_modules/*",
+  "node_modules/*",
+  "tests/*.expected",
+  "cmake/*.diff",
+  "libtexpdf",
+]
diff --git a/Makefile.am b/Makefile.am
index bbccb0eae..a5fc43102 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,5 +1,5 @@
 ACLOCAL_AMFLAGS = -I build-aux
-AM_DISTCHECK_CONFIGURE_FLAGS = --enable-developer-mode
+AM_DISTCHECK_CONFIGURE_FLAGS = --enable-developer-mode --without-developer-tools PDFINFO=$(PDFINFO)
 
 .ONESHELL:
 .SECONDARY:
@@ -216,7 +216,7 @@ sile-$(VERSION).pdf: $(MANUAL)
 sile-%.md: CHANGELOG.md
 	$(SED) -e '/\.\.\.v$*/,/\.\.\.v/!d' CHANGELOG.md | \
 		$(SED) -e '1,3d;N;$$!P;$$!D;$$d' |
-	$(or $(filter cat,$(TYPOS)),$(TYPOS) --write-changes -) > $@
+	$(if $(TYPOS),$(TYPOS) --write-changes,cat) - > $@
 
 check: selfcheck
 
diff --git a/build-aux/ax_lua.m4 b/build-aux/ax_lua.m4
index 4e82e454e..ebd0182e6 100644
--- a/build-aux/ax_lua.m4
+++ b/build-aux/ax_lua.m4
@@ -57,15 +57,15 @@
 #   version number greater or equal to MINIMUM-VERSION and less than
 #   TOO-BIG-VERSION will be accepted.
 #
-#   Optionally, the fifth argument ENABLE_LUAJIT can be set to control whether
-#   LuaJIT or PUC Lua should be considered during discovery. An empty value or
+#   Optionally, the fifth argument ENABLE_LUAJIT can be set to control
+#   whether LuaJIT or PUC Lua should be considered. An empty empty value or
 #   'never' means only PUC Lua installations will be considered; a value of
 #   'always' means PUC is not even considered and only LuaJIT is discovered;
-#   'prefer' means LuaJIT should be used if found but allow PUC , and finally
-#   'allow' means it should not be chosen if any PUC Lua version is found but
-#   it could be used as a last resort. For 'default' and 'allow' a new
-#   configure flag will be provided to the user --with-luajit with the default
-#   option being either 'yes' or 'no' respectively.
+#   'prefer' means LuaJIT should be used if found but allow PUC, and finally
+#   'allow' means it should not be chosen if any PUC Lua version is found
+#   but it could be used as a last resort. For 'default' and 'allow' a new
+#   configure flag will be provided to the user --with-luajit with the
+#   default option being either 'yes' or 'no' respectively.
 #
 #   The Lua version number, LUA_VERSION, is found from the interpreter, and
 #   substituted. LUA_PLATFORM is also found, but not currently supported (no
@@ -198,7 +198,7 @@
 
 dnl =========================================================================
 dnl AX_PROG_LUA([MINIMUM-VERSION], [TOO-BIG-VERSION],
-dnl             [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]
+dnl             [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND],
 dnl             [ENABLE_LUAJIT])
 dnl =========================================================================
 AC_DEFUN([AX_PROG_LUA],
@@ -210,29 +210,31 @@ AC_DEFUN([AX_PROG_LUA],
   dnl Make LUA a precious variable.
   AC_ARG_VAR([LUA], [The Lua interpreter, e.g. /usr/bin/lua5.1])
 
-  dnl Figure out whether we should expose LuaJIT as a user facing configure flag
-  AS_CASE(["m4_default([$5], [never])"],
-    [never], [ default_luajit=no; with_luajit=no ],
-    [always], [ default_luajit=yes; with_luajit=yes ],
+  dnl Figure out whether we should expose LuaJIT as a user facing configure
+  dnl flag and if so whether the default option should be with or without.
+  m4_case(m4_default([$5], [never]),
+    [never], [
+      with_luajit=no
+    ],
+    [always], [
+      with_luajit=yes
+    ],
     [allow], [
-      default_luajit=no
-      m4_if([$5], [allow], [
-        AC_ARG_WITH([luajit],
-          [AS_HELP_STRING([--with-luajit],
-            [prefer LuaJIT over PUC Lua, even if the latter is newer])])
-        ])
+      AC_ARG_WITH([luajit],
+        [AS_HELP_STRING([--with-luajit],
+          [prefer LuaJIT over PUC Lua, even if the latter is newer])])
       test "x$with_luajit" != 'xyes' && with_luajit=no
     ],
     [prefer], [
-      default_luajit=yes
-      m4_if([$5], [prefer], [
-        AC_ARG_WITH([luajit],
-          [AS_HELP_STRING([--without-luajit],
-            [prefer PUC Lua over LuaJIT])])
-        ])
+      AC_ARG_WITH([luajit],
+        [AS_HELP_STRING([--without-luajit],
+          [prefer PUC Lua over LuaJIT])])
       test "x$with_luajit" != 'xno' && with_luajit=yes
     ],
-    [AC_MSG_ERROR([Unrecognized value for ENABLE_LUAJIT])])
+    [
+      AC_MSG_ERROR([Unrecognized value for ENABLE_LUAJIT])
+    ]
+  )
   AM_CONDITIONAL([LUAJIT], [test "x$with_luajit" == "xyes"])
 
   dnl Find a Lua interpreter.
@@ -401,7 +403,11 @@ AC_DEFUN([AX_PROG_LUA],
 ])
 
 dnl AX_WITH_LUA is now the same thing as AX_PROG_LUA.
-AU_DEFUN([AX_WITH_LUA], [AX_PROG_LUA], [$0 is deprecated, please use AX_PROG_LUA instead])
+AC_DEFUN([AX_WITH_LUA],
+[
+  AC_MSG_WARN([[$0 is deprecated, please use AX_PROG_LUA instead]])
+  AX_PROG_LUA
+])
 
 
 dnl =========================================================================
diff --git a/build-aux/ax_lua_module.m4 b/build-aux/ax_lua_module.m4
index ef4b2e57b..3d1f74ea5 100644
--- a/build-aux/ax_lua_module.m4
+++ b/build-aux/ax_lua_module.m4
@@ -1,15 +1,53 @@
-#serial 0
-
-AC_DEFUN([AX_LUA_MODULE],
-[
-  AX_PROG_LUA([5.1], [], [], [], [prefer])
-  AC_MSG_CHECKING([whether Lua can load module $1])
-  AS_IF([$LUA -e 'require("$1")' 2>/dev/null], [
-    AC_MSG_RESULT([loaded])
-    $3
-  ], [
-    AC_MSG_RESULT([unable to load])
-    m4_default([$4], [AC_MSG_ERROR([cannot find Lua library $1 - install from luarocks package $2])])
-  ])
+# ===========================================================================
+#     https://www.gnu.org/software/autoconf-archive/ax_lua_module.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_LUA_MODULE([ROCKNAME], [MODULE])
+#
+# DESCRIPTION
+#
+#   Tests the availability of a Lua module using both available mechanisms,
+#   first checking if a Lua Rock manifest is available, and if not falling
+#   back to attempting to load a module directly.
+#
+#   If the module name is the same as the rock name, the second argument can
+#   be ommitted.
+#
+#   Example usage:
+#
+#     AX_LUA_MODULE([ssl], [luasec])
+#
+#   Note: under the hood this uses AX_LUAROCKS_ROCK and AX_LUA_REQUIRE.
+#
+# LICENSE
+#
+#   Copyright (c) 2024 Caleb Maclennan <caleb@alerque.com>
+#
+#   Copying and distribution of this file, with or without modification, are
+#   permitted in any medium without royalty provided the copyright notice
+#   and this notice are preserved. This file is offered as-is, without any
+#   warranty.
+
+#serial 1
+
+AC_DEFUN([AX_LUA_MODULE],[
+    pushdef([ROCKNAME],$1)
+    pushdef([MODULE],m4_default($2,$1))
+    pushdef([VARIABLE],LUA_HAS_[]m4_toupper(m4_translit($1,-.,__)))
+
+    AC_ARG_VAR(VARIABLE,Was Lua module found)
+
+    AS_IF(test -z "$VARIABLE",[
+        AX_LUAROCKS_ROCK(ROCKNAME,[VARIABLE=yes],[VARIABLE=no])
+        AS_IF([test "x$VARIABLE" != xyes],[
+            AX_LUA_REQUIRE(MODULE,[VARIABLE=yes])
+        ])
+    ])
+
+    popdef([ROCKNAME])
+    popdef([MODULE])
 ])
 
+
diff --git a/build-aux/ax_lua_require.m4 b/build-aux/ax_lua_require.m4
new file mode 100644
index 000000000..8aebb1d1f
--- /dev/null
+++ b/build-aux/ax_lua_require.m4
@@ -0,0 +1,65 @@
+# ===========================================================================
+#     https://www.gnu.org/software/autoconf-archive/ax_lua_require.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_LUA_REQUIRE([MODULE], [ACTION_IF_FOUND], [ACTION_IF_NOT_FOUND])
+#
+# DESCRIPTION
+#
+#   Tests whether Lua can load a module, fails if it is not loadable.
+#
+#   Example usage:
+#
+#     AX_LUA_REQUIRE(lpeg)
+#
+#   Note: this is an alternative to AX_LUAROCKS_ROCK which queries the
+#   LuaRocks manifest for whether something is installed. Sometimes a
+#   proper manifest is not available, and this tests whether a given
+#   module name is actually loadable.
+#
+#   It can also be useful to test for libraries that may or may not be
+#   built into Lua VMs. Builtin modules will return a success.
+#
+# LICENSE
+#
+#   Copyright (c) 2024 Caleb Maclennan <caleb@alerque.com>
+#
+#   Copying and distribution of this file, with or without modification, are
+#   permitted in any medium without royalty provided the copyright notice
+#   and this notice are preserved. This file is offered as-is, without any
+#   warranty.
+
+#serial 1
+
+AC_DEFUN([AX_LUA_REQUIRE],[
+    # Make sure we have a Lua interpreter
+    if test -z "$LUA"; then
+        AX_PROG_LUA
+        if test -z "$LUA"; then
+            AC_MSG_ERROR([No Lua VM set])
+        fi
+    fi
+
+    AC_PREREQ([2.61])
+
+    pushdef([MODULE],$1)
+    pushdef([ACTION_IF_FOUND],$2)
+    pushdef([ACTION_IF_NOT_FOUND],$3)
+
+    AC_MSG_CHECKING([whether Lua can load module MODULE])
+    AS_IF([$LUA -e 'require("MODULE")' 2>/dev/null], [
+        AC_MSG_RESULT([loaded])
+        ACTION_IF_FOUND
+    ], [
+        AC_MSG_RESULT([unable to load])
+        m4_ifset([ACTION_IF_NOT_FOUND][ACTION_IF_NOT_FOUND],
+            [AC_MSG_FAILURE([cannot find Lua module MODULE])])
+    ])
+
+    popdef([MODULE])
+    popdef([ACTION_IF_FOUND])
+    popdef([ACTION_IF_NOT_FOUND])
+])
+
diff --git a/build-aux/ax_luarocks_rock.m4 b/build-aux/ax_luarocks_rock.m4
new file mode 100644
index 000000000..3e98700f7
--- /dev/null
+++ b/build-aux/ax_luarocks_rock.m4
@@ -0,0 +1,62 @@
+# ===========================================================================
+#     https://www.gnu.org/software/autoconf-archive/ax_luarocks_rock.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_LUAROCKS_ROCK([ROCKNAME], [ACTION_IF_FOUND], [ACTION_IF_NOT_FOUND])
+#
+# DESCRIPTION
+#
+#   Checks for a rock, and fails if it is not installed.
+#
+#   Example usage:
+#
+#     AX_LUAROCKS_ROCK(stdlib)
+#
+#   Note: use of this macro is not normally recommended. Normally, LuaRocks
+#   should be used to drive the build system, and it takes care of rock
+#   dependencies. Use this macro only if LuaRocks cannot be used at the top
+#   level, for example, in a build system that uses Lua only incidentally.
+#
+# LICENSE
+#
+#   Copyright (c) 2024 Caleb Maclennan <caleb@alerque.com>
+#   Copyright (c) 2016 Reuben Thomas <rrt@sc3d.org>
+#
+#   Copying and distribution of this file, with or without modification, are
+#   permitted in any medium without royalty provided the copyright notice
+#   and this notice are preserved. This file is offered as-is, without any
+#   warranty.
+
+#serial 4
+
+AC_DEFUN([AX_LUAROCKS_ROCK],[
+    # Make sure we have luarocks
+    if test -z "$LUAROCKS"; then
+       AX_WITH_PROG(LUAROCKS,luarocks)
+       if test -z "$LUAROCKS"; then
+           AC_MSG_ERROR([can't find luarocks])
+       fi
+    fi
+
+    AC_PREREQ([2.61])
+
+    pushdef([ROCKNAME],$1)
+    pushdef([ACTION_IF_FOUND],$2)
+    pushdef([ACTION_IF_NOT_FOUND],$3)
+
+    AC_MSG_CHECKING(whether LuaRock ROCKNAME is installed)
+    AS_IF(["$LUAROCKS"${LUA_VERSION+ --lua-version $LUA_VERSION} show ROCKNAME > /dev/null 2>&1],[
+        AC_MSG_RESULT(yes)
+        ACTION_IF_FOUND
+    ],[
+        AC_MSG_RESULT(no)
+        m4_ifset([ACTION_IF_NOT_FOUND],[ACTION_IF_NOT_FOUND],
+            [AC_MSG_FAILURE([LuaRock ROCKNAME not found])])
+    ])
+
+    popdef([ROCKNAME])
+    popdef([ACTION_IF_FOUND])
+    popdef([ACTION_IF_NOT_FOUND])
+])
diff --git a/build-aux/ax_with_prog.m4 b/build-aux/ax_with_prog.m4
new file mode 100644
index 000000000..b3a881c0d
--- /dev/null
+++ b/build-aux/ax_with_prog.m4
@@ -0,0 +1,70 @@
+# ===========================================================================
+#       https://www.gnu.org/software/autoconf-archive/ax_with_prog.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_WITH_PROG([VARIABLE],[program],[VALUE-IF-NOT-FOUND],[PATH])
+#
+# DESCRIPTION
+#
+#   Locates an installed program binary, placing the result in the precious
+#   variable VARIABLE. Accepts a present VARIABLE, then --with-program, and
+#   failing that searches for program in the given path (which defaults to
+#   the system path). If program is found, VARIABLE is set to the full path
+#   of the binary; if it is not found VARIABLE is set to VALUE-IF-NOT-FOUND
+#   if provided, unchanged otherwise.
+#
+#   A typical example could be the following one:
+#
+#     AX_WITH_PROG(PERL,perl)
+#
+#   NOTE: This macro is based upon the original AX_WITH_PYTHON macro from
+#   Dustin J. Mitchell <dustin@cs.uchicago.edu>.
+#
+# LICENSE
+#
+#   Copyright (c) 2008 Francesco Salvestrini <salvestrini@users.sourceforge.net>
+#   Copyright (c) 2008 Dustin J. Mitchell <dustin@cs.uchicago.edu>
+#
+#   Copying and distribution of this file, with or without modification, are
+#   permitted in any medium without royalty provided the copyright notice
+#   and this notice are preserved. This file is offered as-is, without any
+#   warranty.
+
+#serial 17
+
+AC_DEFUN([AX_WITH_PROG],[
+    AC_PREREQ([2.61])
+
+    pushdef([VARIABLE],$1)
+    pushdef([EXECUTABLE],$2)
+    pushdef([VALUE_IF_NOT_FOUND],$3)
+    pushdef([PATH_PROG],$4)
+
+    AC_ARG_VAR(VARIABLE,Absolute path to EXECUTABLE executable)
+
+    AS_IF(test -z "$VARIABLE",[
+        AC_MSG_CHECKING(whether EXECUTABLE executable path has been provided)
+        AC_ARG_WITH(EXECUTABLE,AS_HELP_STRING([--with-EXECUTABLE=[[[PATH]]]],absolute path to EXECUTABLE executable), [
+            AS_IF([test "$withval" != yes && test "$withval" != no],[
+                VARIABLE="$withval"
+                AC_MSG_RESULT($VARIABLE)
+            ],[
+                VARIABLE=""
+                AC_MSG_RESULT([no])
+                AS_IF([test "$withval" != no], [
+                  AC_PATH_PROG([]VARIABLE[],[]EXECUTABLE[],[]VALUE_IF_NOT_FOUND[],[]PATH_PROG[])
+                ])
+            ])
+        ],[
+            AC_MSG_RESULT([no])
+            AC_PATH_PROG([]VARIABLE[],[]EXECUTABLE[],[]VALUE_IF_NOT_FOUND[],[]PATH_PROG[])
+        ])
+    ])
+
+    popdef([PATH_PROG])
+    popdef([VALUE_IF_NOT_FOUND])
+    popdef([EXECUTABLE])
+    popdef([VARIABLE])
+])
diff --git a/build-aux/cargo-updater.js b/build-aux/cargo-updater.js
index 1b64fda44..f91b9074e 100644
--- a/build-aux/cargo-updater.js
+++ b/build-aux/cargo-updater.js
@@ -1,4 +1,5 @@
 const TOML = require('@iarna/toml')
+const { exec } = require('node:child_process')
 
 module.exports.readVersion = function (contents) {
   const data = TOML.parse(contents)
@@ -6,7 +7,11 @@ module.exports.readVersion = function (contents) {
 }
 
 module.exports.writeVersion = function (contents, version) {
-  const data = TOML.parse(contents)
-  data.package.version = version
-  return TOML.stringify(data)
+  exec('cargo-set-version set-version ' + version, (err, output) => {
+    if (err) {
+      console.error("Could not run Cargo subcommand to set version: ", err)
+      return
+    }
+  })
+  return contents
 }
diff --git a/build-aux/pkg.nix b/build-aux/pkg.nix
index 91734bd97..6b9fd535e 100644
--- a/build-aux/pkg.nix
+++ b/build-aux/pkg.nix
@@ -18,12 +18,14 @@
   rustPlatform,
 
   # buildInputs
+  cargo-edit,
   lua,
   harfbuzz,
   icu,
   fontconfig,
   libiconv,
   stylua,
+  taplo,
   typos,
   darwin,
   # FONTCONFIG_FILE
@@ -43,6 +45,10 @@ let
     ps:
     with ps;
     [
+      # used for module detection, also recommended at runtime for 3rd party module installation
+      luarocks
+
+      # modules used at runtime
       cassowary
       cldr
       fluent
@@ -113,12 +119,14 @@ stdenv.mkDerivation (finalAttrs: {
 
   buildInputs =
     [
+      cargo-edit
       luaEnv
       harfbuzz
       icu
       fontconfig
       libiconv
       stylua
+      taplo
       typos
     ]
     ++ lib.optionals stdenv.hostPlatform.isDarwin [
diff --git a/build-aux/que_developer_mode.m4 b/build-aux/que_developer_mode.m4
index 18bd29fe8..f1bfeafdc 100644
--- a/build-aux/que_developer_mode.m4
+++ b/build-aux/que_developer_mode.m4
@@ -15,5 +15,12 @@ AC_DEFUN([QUE_DEVELOPER_MODE], [
                 [USE_DEVELOPER_MODE=]m4_if(_que_developer_def, [enable], [no], [yes]))
         AC_MSG_RESULT([$USE_DEVELOPER_MODE])
         AM_CONDITIONAL([DEVELOPER_MODE], [test $USE_DEVELOPER_MODE = yes])
-
+        AM_COND_IF([DEVELOPER_MODE], [
+                AC_ARG_WITH([developer-tools],
+                        AS_HELP_STRING([--without-developer-tools],
+                                        [Avoid checks for developer workflow tooling]))
+        ], [
+                with_developer_tools=no
+        ])
+        AM_CONDITIONAL([DEVELOPER_TOOLS], [test "x$with_developer_tools" != "xno"])
 ])
diff --git a/build-aux/que_font.m4 b/build-aux/que_font.m4
index 57db8a4fe..9599b3940 100644
--- a/build-aux/que_font.m4
+++ b/build-aux/que_font.m4
@@ -3,7 +3,7 @@ AC_DEFUN([QUE_FONT], [
         if test -z "$FCMATCH"; then
                 AC_PATH_PROG(FCMATCH, fc-match)
                 if test -z "$FCMATCH"; then
-                AC_MSG_ERROR([can't find fc-match])
+                        AC_MSG_ERROR([can't find fc-match])
                 fi
         fi
         pushdef([FONT],$1)
diff --git a/build-aux/que_progvar.m4 b/build-aux/que_progvar.m4
index 20d1288b4..043a93758 100644
--- a/build-aux/que_progvar.m4
+++ b/build-aux/que_progvar.m4
@@ -1,5 +1,11 @@
 AC_DEFUN([QUE_PROGVAR], [
-        test -n "$m4_toupper($1)" || { AC_PATH_PROG(m4_toupper($1), m4_default($2,$1)) }
-        test -n "$m4_toupper($1)" || AC_MSG_ERROR([m4_default($2,$1) is required])
+    pushdef([VARIABLE],m4_toupper($1))
+    pushdef([EXECUTABLE],m4_default($2,$1))
+    AX_WITH_PROG(VARIABLE,EXECUTABLE)
+    AS_IF([test "x$with_$1" != xno && test -z "$VARIABLE"], [
+        AC_MSG_ERROR([EXECUTABLE is required])
+    ])
+    popdef([EXECUTABLE])
+    popdef([VARIABLE])
 ])
 
diff --git a/classes/book.lua b/classes/book.lua
index 13aa4e4f9..0b7fbbf52 100644
--- a/classes/book.lua
+++ b/classes/book.lua
@@ -256,20 +256,15 @@ function class:registerCommands ()
    end, "Begin a new subsection")
 
    self:registerCommand("book:chapterfont", function (_, content)
-      SILE.settings:temporarily(function ()
-         SILE.call("font", { weight = 800, size = "22pt" }, content)
-      end)
+      SILE.call("font", { weight = 800, size = "22pt" }, content)
    end)
+
    self:registerCommand("book:sectionfont", function (_, content)
-      SILE.settings:temporarily(function ()
-         SILE.call("font", { weight = 800, size = "15pt" }, content)
-      end)
+      SILE.call("font", { weight = 800, size = "15pt" }, content)
    end)
 
    self:registerCommand("book:subsectionfont", function (_, content)
-      SILE.settings:temporarily(function ()
-         SILE.call("font", { weight = 800, size = "12pt" }, content)
-      end)
+      SILE.call("font", { weight = 800, size = "12pt" }, content)
    end)
 end
 
diff --git a/configure.ac b/configure.ac
index 917c0361f..098f34d58 100644
--- a/configure.ac
+++ b/configure.ac
@@ -21,8 +21,11 @@ AC_PROG_GREP
 AC_PROG_OBJC
 AC_PROG_SED
 QUE_PROGVAR([cmp])
+QUE_PROGVAR([diff])
 QUE_PROGVAR([find])
+QUE_PROGVAR([head])
 QUE_PROGVAR([jq])
+QUE_PROGVAR([luarocks])
 QUE_PROGVAR([pdfinfo])
 QUE_PROGVAR([sort])
 QUE_PROGVAR([xargs])
@@ -177,18 +180,21 @@ AM_COND_IF([FONT_DOWNLOAD_TOOLS], [
 ])
 
 AM_COND_IF([DEVELOPER_MODE], [
+    AX_WITH_PROG([DELTA], [delta], [cat])
+    AX_WITH_PROG([PERL], [perl])
+])
+
+AM_COND_IF([DEVELOPER_TOOLS], [
     QUE_PROGVAR([busted])
+    QUE_PROGVAR([cargosetversion], [cargo-set-version])
     QUE_PROGVAR([curl])
-    QUE_PROGVAR([delta])
-    QUE_PROGVAR([diff])
-    QUE_PROGVAR([head])
     QUE_PROGVAR([ldoc])
     QUE_PROGVAR([luacheck])
-    QUE_PROGVAR([luarocks])
     QUE_PROGVAR([nix])
     QUE_PROGVAR([npm])
     QUE_PROGVAR([perl])
     QUE_PROGVAR([stylua])
+    QUE_PROGVAR([taplo])
     QUE_PROGVAR([tr])
     QUE_PROGVAR([typos])
     QUE_PROGVAR([xsltproc])
@@ -200,38 +206,33 @@ AX_LUA_LIBS
 
 AM_COND_IF([SYSTEM_LUAROCKS], [
     AS_IF([test "$LUA_SHORT_VERSION" -lt 52], [
-        AM_COND_IF([LUAJIT], [], [
-            AX_LUA_MODULE([bit32], [bit32])
-        ])
+        AM_COND_IF([LUAJIT], [], [AX_LUA_MODULE(bit32)])
     ])
-    AX_LUA_MODULE([cassowary], [cassowary])
-    AS_IF([test "$LUA_SHORT_VERSION" -lt 53], [
-        AX_LUA_MODULE([compat53], [compat53])
-    ])
-    AX_LUA_MODULE([cldr], [cldr])
-    AX_LUA_MODULE([fluent], [fluent])
-    AX_LUA_MODULE([linenoise], [linenoise])
-    AX_LUA_MODULE([loadkit], [loadkit])
-    AX_LUA_MODULE([lpeg], [lpeg])
-    AX_LUA_MODULE([zlib], [lua-zlib])
-    AX_LUA_MODULE([cliargs], [lua_cliargs])
-    AX_LUA_MODULE([epnf], [luaepnf])
-    AX_LUA_MODULE([lxp], [luaexpat])
-    AX_LUA_MODULE([lfs], [luafilesystem])
-    AX_LUA_MODULE([repl], [luarepl])
-    AX_LUA_MODULE([ssl], [luasec])
-    AX_LUA_MODULE([socket], [luasocket])
-    AX_LUA_MODULE([lua-utf8], [luautf8])
-    AX_LUA_MODULE([pl], [penlight])
-    AX_LUA_MODULE([vstruct], [vstruct])
+    AX_LUA_MODULE(cassowary)
+    AS_IF([test "$LUA_SHORT_VERSION" -lt 53], [AX_LUA_MODULE(compat53)])
+    AX_LUA_MODULE(cldr)
+    AX_LUA_MODULE(fluent)
+    AX_LUA_MODULE(linenoise)
+    AX_LUA_MODULE(loadkit)
+    AX_LUA_MODULE(lpeg)
+    AX_LUA_MODULE(lua-zlib, zlib)
+    AX_LUA_MODULE(lua_cliargs, cliargs)
+    AX_LUA_MODULE(luaepnf, epnf)
+    AX_LUA_MODULE(luaexpat, lxp)
+    AX_LUA_MODULE(luafilesystem, lfs)
+    AX_LUA_MODULE(luafilesystem)
+    AX_LUA_MODULE(luarepl, repl)
+    AX_LUA_MODULE(luasec, ssl)
+    AX_LUA_MODULE(luasocket, socket)
+    AX_LUA_MODULE(luautf8, lua-utf8)
+    AX_LUA_MODULE(penlight, pl)
+    AX_LUA_MODULE(vstruct)
 ], [
-    QUE_PROGVAR([luarocks])
     QUE_PROGVAR([git]) # required for luarocks to install zlib rock
 ])
 
 QUE_FONT(Gentium Plus)
 
-
 AC_SUBST([APPKIT_TRUE])
 AC_SUBST([FONTCONFIG_TRUE])
 AC_SUBST([FONT_VARIATIONS_TRUE])
diff --git a/flake.nix b/flake.nix
index 0a9c4ee36..4a2814a36 100644
--- a/flake.nix
+++ b/flake.nix
@@ -87,7 +87,6 @@
               "--with-manual"
             ];
             nativeBuildInputs = sile.nativeBuildInputs ++ [
-              pkgs.luarocks
               # For regression test diff highlighting
               pkgs.delta
               # For commitlint git hook
diff --git a/package.json b/package.json
index 2a0e1aa6b..c5c06ce75 100644
--- a/package.json
+++ b/package.json
@@ -51,7 +51,7 @@
       }
     ],
     "scripts": {
-      "postbump": "cargo generate-lockfile --offline",
+      "postbump": "taplo format Cargo.toml && cargo generate-lockfile --offline",
       "postcommit": "git add -u Cargo.lock && git commit --amend --no-edit"
     },
     "infile": "CHANGELOG.md",
diff --git a/packages/autodoc/init.lua b/packages/autodoc/init.lua
index a48c38af7..5b279075d 100644
--- a/packages/autodoc/init.lua
+++ b/packages/autodoc/init.lua
@@ -389,7 +389,7 @@ function package:registerCommands ()
                SILE.call("novbreak")
                SILE.call("fullrule", { thickness = "0.5pt" })
                SILE.call("novbreak")
-               SILE.typesetter:pushVglue(-bs-ex)
+               SILE.typesetter:pushVglue(-bs - ex)
                SILE.call("novbreak")
             end)
          end
diff --git a/packages/math/base-elements.lua b/packages/math/base-elements.lua
index faea4b98e..b1a1baf5a 100644
--- a/packages/math/base-elements.lua
+++ b/packages/math/base-elements.lua
@@ -1028,6 +1028,17 @@ end
 
 function elements.text:shape ()
    self.font.size = self.font.size * self:getScaleDown()
+   if isScriptMode(self.mode) then
+      local scriptFeature = SILE.settings:get("math.font.script.feature")
+      if scriptFeature then
+         self.font.features = ("+%s=1"):format(scriptFeature)
+      end
+   elseif isScriptScriptMode(self.mode) then
+      local scriptFeature = SILE.settings:get("math.font.script.feature")
+      if scriptFeature then
+         self.font.features = ("+%s=2"):format(scriptFeature)
+      end
+   end
    local face = SILE.font.cache(self.font, SILE.shaper.getFace)
    local mathMetrics = self:getMathMetrics()
    local glyphs = SILE.shaper:shapeToken(self.text, self.font)
diff --git a/packages/math/init.lua b/packages/math/init.lua
index c56a316bd..e4cbb0249 100644
--- a/packages/math/init.lua
+++ b/packages/math/init.lua
@@ -35,6 +35,12 @@ function package.declareSettings (_)
       type = "integer",
       default = 400,
    })
+   SILE.settings:declare({
+      parameter = "math.font.script.feature",
+      type = "string or nil",
+      default = "ssty",
+      help = "OpenType feature for the math script-style alternates (esp. primes), theoretically ssty",
+   })
    SILE.settings:declare({
       parameter = "math.font.filename",
       type = "string",
@@ -137,6 +143,10 @@ By default, this package uses Libertinus Math, so it will fail if Libertinus Mat
 Another font may be specified via the setting \autodoc:setting{math.font.family}.
 If required, you can set the font style and weight via \autodoc:setting{math.font.style} and \autodoc:setting{math.font.weight}.
 The font size can be set via \autodoc:setting{math.font.size}.
+The \autodoc:setting{math.font.script.feature} setting can be used to specify OpenType features for the math font, which are applied to the smaller script styles.
+It defaults to \code{ssty} (script style alternates), notably to ensure that some symbols such as the prime, double prime, etc. are displayed correctly.
+The default setting applies to Libertinus Math and well-designed math fonts, but some fonts may require different features.
+(The STIX Two Math font has a stylitic set \code{ss04} from primes only, but also supports, according to its documentation, \code{ssty}, which provides other optical adjustments.)
 
 \paragraph{MathML}
 The first way to typeset math formulas is to enter them in the MathML format.
diff --git a/packages/math/texlike.lua b/packages/math/texlike.lua
index dcd6efdba..f5eef5f5e 100644
--- a/packages/math/texlike.lua
+++ b/packages/math/texlike.lua
@@ -119,16 +119,49 @@ local mathGrammar = function (_ENV)
          return pl.utils.unpack(t)
          end
 
+   -- TeX uses the regular asterisk (* = U+002A) in superscripts or subscript:
+   -- The TeXbook exercice 18.32 (p. 179, 330) for instance.
+   -- Fonts usually have the asterisk raised too high, so using the Unicode
+   -- asterisk operator U+2217 looks better (= \ast in TeX).
+   local astop = P"*" / luautf8.char(0x2217)
+   -- TeX interprets apostrophes as primes in math mode:
+   -- The TeXbook p. 130 expands ' to ^\prime commands and repeats the \prime
+   -- for multiple apostrophes.
+   -- The TeXbook p. 134: "Then there is the character ', which we know is used
+   -- as an abbreviation for \prime superscripts."
+   -- (So we are really sure superscript primes are really the intended meaning.)
+   -- Here we use the Unicode characters for primes, but the intent is the same.
+   local primes = (
+         P"''''" / luautf8.char(0x2057) + -- quadruple prime
+         P"'''" / luautf8.char(0x2034) + -- triple prime
+         P"''" / luautf8.char(0x2033) + -- double prime
+         P"'" / luautf8.char(0x2032) -- prime
+      ) / function (s)
+            return { id="atom", s }
+         end
+   local primes_sup = (
+         primes * _ * P"^" * _ * element_no_infix / function (p, e)
+            -- Combine the prime with the superscript in the same mathlist
+            if e.id == "mathlist" then
+               table.insert(e, 1, p)
+               return e
+            end
+            return { id="mathlist", p, e }
+         end
+         + primes -- or standalone primes
+      )
+
    START "math"
    math = V"mathlist" * EOF"Unexpected character at end of math code"
    mathlist = (comment + (WS * _) + element)^0
-   supsub = element_no_infix * _ * P"^" * _ * element_no_infix * _ *
-      P"_" * _ * element_no_infix
-   subsup = element_no_infix * _ * P"_" * _ * element_no_infix * _ *
-      P"^" * _ * element_no_infix
-   sup = element_no_infix * _ * P"^" * _ * element_no_infix
+   supsub = element_no_infix * _ * primes_sup                  * _ *  P"_" * _ * element_no_infix +
+            element_no_infix * _ * P"^" * _ * element_no_infix * _ *  P"_" * _ * element_no_infix
+   subsup = element_no_infix * _ * P"_" * _ * element_no_infix * primes_sup +
+            element_no_infix * _ * P"_" * _ * element_no_infix * _ * P"^" * _ * element_no_infix
+   sup =  element_no_infix * _ * primes_sup +
+          element_no_infix * _ * P"^" * _ * element_no_infix
    sub = element_no_infix * _ * P"_" * _ * element_no_infix
-   atom = natural + C(utf8code - S"\\{}%^_&") +
+   atom = natural + astop + C(utf8code - S"\\{}%^_&'") +
       (P"\\{" + P"\\}") / function (s) return string.sub(s, -1) end
    text = (
          P"\\text" *
diff --git a/packages/pandoc/init.lua b/packages/pandoc/init.lua
index ac3058a18..c8a5a4668 100644
--- a/packages/pandoc/init.lua
+++ b/packages/pandoc/init.lua
@@ -56,6 +56,12 @@ function package:_init ()
    self:loadPackage("rules")
    self:loadPackage("url")
    self:loadPackage("verbatim")
+   self.class:registerPostinit(function ()
+      -- Override the url package which styles URLs as code, something Pandoc content tends to double up on
+      self:registerCommand("urlstyle", function (_, content)
+         SILE.process(content)
+      end)
+   end)
 end
 
 function package:registerCommands ()
@@ -280,7 +286,7 @@ function package:registerCommands ()
 
    self:registerCommand("ListItemTerm", function (_, content)
       SILE.call("smallskip")
-      SILE.call("strong", content)
+      SILE.call("strong", {}, content)
       SILE.typesetter:typeset(" : ")
    end)
 
diff --git a/rusile/Cargo.toml b/rusile/Cargo.toml
index 8606b30ee..dbe411618 100644
--- a/rusile/Cargo.toml
+++ b/rusile/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "rusile"
 description = "Rusty components for the SILE typesetter"
-readme = "README.md"
+readme = "../README.md"
 version.workspace = true
 edition.workspace = true
 rust-version.workspace = true
@@ -13,18 +13,18 @@ license.workspace = true
 [lib]
 crate-type = ["rlib", "cdylib", "staticlib"]
 
-[dependencies.sile]
-path = ".."
-
 [features]
 default = []
-lua54 = [ "mlua/lua54" ]
-lua53 = [ "mlua/lua53" ]
-lua52 = [ "mlua/lua52" ]
-lua51 = [ "mlua/lua51" ]
-luajit = [ "mlua/luajit" ]
-vendored = [ "mlua/vendored" ]
+lua54 = ["mlua/lua54"]
+lua53 = ["mlua/lua53"]
+lua52 = ["mlua/lua52"]
+lua51 = ["mlua/lua51"]
+luajit = ["mlua/luajit"]
+vendored = ["mlua/vendored"]
+
+[dependencies.sile]
+workspace = true
 
 [dependencies.mlua]
 workspace = true
-features = [ "macros", "module" ]
+features = ["macros", "module"]
diff --git a/spec/languages_spec.lua b/spec/languages_spec.lua
index 3d5b422f4..83a87de06 100644
--- a/spec/languages_spec.lua
+++ b/spec/languages_spec.lua
@@ -1,7 +1,6 @@
 SILE = require("core.sile")
 
 describe("Language module", function ()
-
    it("should set env locale", function ()
       SILE.call("language", { main = "tr" })
       local syslang = os.getenv("LANG")
diff --git a/tests/bug-1495-inline-math-layout.expected b/tests/bug-1495-inline-math-layout.expected
index b4c8ae2bd..fd480cc28 100644
--- a/tests/bug-1495-inline-math-layout.expected
+++ b/tests/bug-1495-inline-math-layout.expected
@@ -54,7 +54,7 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	2750 w=3.8100	(nil)
 Mx 	196.6642
 My 	37.4447
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2753 w=1.8320	(nil)
 Mx 	198.4962
 T	3421 w=4.5776	(nil)
@@ -101,7 +101,7 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	2750 w=3.8100	(nil)
 Mx 	199.7501
 My 	49.5701
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2753 w=1.8320	(nil)
 Mx 	201.5821
 T	3413 w=3.5152	(nil)
diff --git a/tests/feat-math-display-numbered.expected b/tests/feat-math-display-numbered.expected
index 265f6825e..5fe667914 100644
--- a/tests/feat-math-display-numbered.expected
+++ b/tests/feat-math-display-numbered.expected
@@ -12,7 +12,7 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	2750 w=3.8100	(nil)
 Mx 	129.6547
 My 	48.7418
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2753 w=1.8320	(nil)
 Mx 	131.4867
 T	3421 w=4.5776	(nil)
@@ -49,7 +49,7 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	2750 w=3.8100	(nil)
 Mx 	129.6547
 My 	108.3223
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2753 w=1.8320	(nil)
 Mx 	131.4867
 T	3421 w=4.5776	(nil)
@@ -88,7 +88,7 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	2750 w=3.8100	(nil)
 Mx 	129.6547
 My 	167.9027
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2753 w=1.8320	(nil)
 Mx 	131.4867
 T	3421 w=4.5776	(nil)
@@ -133,7 +133,7 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	2750 w=3.8100	(nil)
 Mx 	129.6547
 My 	227.4832
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2753 w=1.8320	(nil)
 Mx 	131.4867
 T	3421 w=4.5776	(nil)
@@ -176,7 +176,7 @@ My 	285.3548
 T	2765 w=4.9200	(nil)
 Mx 	104.6983
 My 	287.4548
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	17 w=3.7200	(nil)
 Mx 	114.8483
 My 	285.3548
@@ -189,7 +189,7 @@ My 	300.1048
 T	2765 w=4.9200	(nil)
 Mx 	104.6855
 My 	302.2048
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2758 w=3.7328	(nil)
 Mx 	114.8483
 My 	300.1048
@@ -203,7 +203,7 @@ Mx 	140.6728
 T	2765 w=4.9200	(nil)
 Mx 	145.2328
 My 	302.2048
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2758 w=3.7328	(nil)
 Mx 	148.9656
 T	2088 w=5.1840	(nil)
@@ -246,7 +246,7 @@ Mx 	146.0615
 T	2750 w=3.8100	(nil)
 Mx 	149.8715
 My 	341.0405
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2753 w=1.8320	(nil)
 Mx 	151.7035
 T	3421 w=4.5776	(nil)
diff --git a/tests/feat-math-display-unnumbered.expected b/tests/feat-math-display-unnumbered.expected
index 590b7a455..23a182dd7 100644
--- a/tests/feat-math-display-unnumbered.expected
+++ b/tests/feat-math-display-unnumbered.expected
@@ -12,7 +12,7 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	2750 w=3.8100	(nil)
 Mx 	135.7213
 My 	47.6655
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2753 w=1.8320	(nil)
 Mx 	137.5533
 T	3421 w=4.5776	(nil)
@@ -43,7 +43,7 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	2750 w=3.8100	(nil)
 Mx 	135.7213
 My 	105.2660
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2753 w=1.8320	(nil)
 Mx 	137.5533
 T	3421 w=4.5776	(nil)
@@ -76,7 +76,7 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	2750 w=3.8100	(nil)
 Mx 	135.7213
 My 	162.8665
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2753 w=1.8320	(nil)
 Mx 	137.5533
 T	3421 w=4.5776	(nil)
@@ -115,7 +115,7 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	2750 w=3.8100	(nil)
 Mx 	135.7213
 My 	220.4670
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2753 w=1.8320	(nil)
 Mx 	137.5533
 T	3421 w=4.5776	(nil)
diff --git a/tests/math-bigops.expected b/tests/math-bigops.expected
index 56b4890e1..de7dfa5d2 100644
--- a/tests/math-bigops.expected
+++ b/tests/math-bigops.expected
@@ -18,7 +18,7 @@ Mx 	166.2055
 T	29 w=2.2900	(:)
 Mx 	179.4186
 My 	47.7505
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2100 w=6.2800	(nil)
 Mx 	171.1686
 My 	52.8405
@@ -26,7 +26,7 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	2250 w=8.2500	(nil)
 Mx 	179.4186
 My 	55.6505
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2754 w=2.5392	(nil)
 Mx 	181.9578
 T	30 w=5.1840	(nil)
@@ -41,7 +41,7 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	2085 w=10.0200	(nil)
 Mx 	202.9784
 My 	55.6505
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2758 w=3.7328	(nil)
 Mx 	206.7112
 T	30 w=5.1840	(nil)
@@ -56,7 +56,7 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	2087 w=8.4700	(nil)
 Mx 	226.1819
 My 	55.6205
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2757 w=5.6752	(nil)
 Mx 	231.8571
 T	30 w=5.1840	(nil)
@@ -68,15 +68,15 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	70 w=4.4700	(nil)
 Mx 	254.1038
 My 	44.7465
-Set font 	Libertinus Math;6;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;6;400;Regular;normal;+ssty=2;;LTR
 T	78 w=4.7400	(nil)
 Mx 	247.3278
 My 	48.7785
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2087 w=6.7760	(nil)
 Mx 	254.1038
 My 	51.0025
-Set font 	Libertinus Math;6;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;6;400;Regular;normal;+ssty=2;;LTR
 T	2753 w=1.3740	(nil)
 Mx 	255.4778
 T	30 w=3.8880	(nil)
@@ -84,11 +84,11 @@ Mx 	259.3658
 T	17 w=2.7900	(nil)
 Mx 	264.1664
 My 	48.7785
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	3409 w=3.7408	(nil)
 Mx 	267.3504
 My 	50.4585
-Set font 	Libertinus Math;6;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;6;400;Regular;normal;+ssty=2;;LTR
 T	2753 w=1.3740	(nil)
 Mx 	268.7244
 T	13 w=1.3200	(nil)
@@ -126,7 +126,7 @@ Mx 	215.6651
 T	29 w=2.2900	(:)
 Mx 	238.1188
 My 	68.4073
-Set font 	Libertinus Math;14.4;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;14.4;400;Regular;normal;+ssty=1;;LTR
 T	2100 w=11.3040	(nil)
 Mx 	223.2688
 My 	77.5693
@@ -134,7 +134,7 @@ Set font 	Libertinus Math;18;400;Regular;normal;;;LTR
 T	2250 w=14.8500	(nil)
 Mx 	238.1188
 My 	82.6273
-Set font 	Libertinus Math;14.4;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;14.4;400;Regular;normal;+ssty=1;;LTR
 T	2754 w=4.5706	(nil)
 Mx 	242.6894
 T	30 w=9.3312	(nil)
@@ -149,7 +149,7 @@ Set font 	Libertinus Math;18;400;Regular;normal;;;LTR
 T	2085 w=18.0360	(nil)
 Mx 	280.5266
 My 	82.6273
-Set font 	Libertinus Math;14.4;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;14.4;400;Regular;normal;+ssty=1;;LTR
 T	2758 w=6.7190	(nil)
 Mx 	287.2456
 T	30 w=9.3312	(nil)
@@ -164,7 +164,7 @@ Set font 	Libertinus Math;18;400;Regular;normal;;;LTR
 T	2087 w=15.2460	(nil)
 Mx 	322.2928
 My 	82.5733
-Set font 	Libertinus Math;14.4;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;14.4;400;Regular;normal;+ssty=1;;LTR
 T	2757 w=10.2154	(nil)
 Mx 	332.5082
 T	30 w=9.3312	(nil)
@@ -176,15 +176,15 @@ Set font 	Libertinus Math;18;400;Regular;normal;;;LTR
 T	70 w=8.0460	(nil)
 Mx 	372.5522
 My 	63.0001
-Set font 	Libertinus Math;10.8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;10.8;400;Regular;normal;+ssty=2;;LTR
 T	78 w=8.5320	(nil)
 Mx 	360.3554
 My 	70.2577
-Set font 	Libertinus Math;14.4;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;14.4;400;Regular;normal;+ssty=1;;LTR
 T	2087 w=12.1968	(nil)
 Mx 	372.5522
 My 	74.2609
-Set font 	Libertinus Math;10.8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;10.8;400;Regular;normal;+ssty=2;;LTR
 T	2753 w=2.4732	(nil)
 Mx 	375.0254
 T	30 w=6.9984	(nil)
@@ -192,11 +192,11 @@ Mx 	382.0238
 T	17 w=5.0220	(nil)
 Mx 	390.6650
 My 	70.2577
-Set font 	Libertinus Math;14.4;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;14.4;400;Regular;normal;+ssty=1;;LTR
 T	3409 w=6.7334	(nil)
 Mx 	396.3962
 My 	73.2817
-Set font 	Libertinus Math;10.8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;10.8;400;Regular;normal;+ssty=2;;LTR
 T	2753 w=2.4732	(nil)
 Mx 	398.8694
 T	13 w=2.3760	(nil)
@@ -226,7 +226,7 @@ Mx 	179.0098
 T	29 w=2.2900	(:)
 Mx 	254.3807
 My 	110.1369
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2100 w=6.2800	(nil)
 Mx 	251.8307
 My 	122.0169
@@ -235,7 +235,7 @@ Mx 	10.3800
 T	4096 a=11.3800	(nil)
 Mx 	251.7991
 My 	132.8409
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2754 w=2.5392	(nil)
 Mx 	254.3383
 T	30 w=5.1840	(nil)
@@ -251,7 +251,7 @@ Mx 	13.1800
 T	3986 a=14.1800	(nil)
 Mx 	265.6806
 My 	132.8219
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2758 w=3.7328	(nil)
 Mx 	269.4134
 T	30 w=5.1840	(nil)
@@ -267,7 +267,7 @@ Mx 	10.6300
 T	3985 a=12.4300	(nil)
 Mx 	280.7556
 My 	132.6619
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2757 w=5.6752	(nil)
 Mx 	286.4308
 T	30 w=5.1840	(nil)
@@ -279,15 +279,15 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	70 w=4.4700	(nil)
 Mx 	308.2475
 My 	114.0229
-Set font 	Libertinus Math;6;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;6;400;Regular;normal;+ssty=2;;LTR
 T	78 w=4.7400	(nil)
 Mx 	301.4715
 My 	118.0549
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2087 w=6.7760	(nil)
 Mx 	308.2475
 My 	120.2789
-Set font 	Libertinus Math;6;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;6;400;Regular;normal;+ssty=2;;LTR
 T	2753 w=1.3740	(nil)
 Mx 	309.6215
 T	30 w=3.8880	(nil)
@@ -295,11 +295,11 @@ Mx 	313.5095
 T	17 w=2.7900	(nil)
 Mx 	318.3102
 My 	118.0549
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	3409 w=3.7408	(nil)
 Mx 	321.4942
 My 	119.7349
-Set font 	Libertinus Math;6;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;6;400;Regular;normal;+ssty=2;;LTR
 T	2753 w=1.3740	(nil)
 Mx 	322.8682
 T	13 w=1.3200	(nil)
@@ -337,7 +337,7 @@ Mx 	228.5467
 T	29 w=2.2900	(:)
 Mx 	219.7750
 My 	171.2807
-Set font 	Libertinus Math;14.4;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;14.4;400;Regular;normal;+ssty=1;;LTR
 T	2100 w=11.3040	(nil)
 Mx 	215.1850
 My 	192.6647
@@ -346,7 +346,7 @@ Mx 	18.6840
 T	4096 a=20.4840	(nil)
 Mx 	215.1281
 My 	212.1479
-Set font 	Libertinus Math;14.4;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;14.4;400;Regular;normal;+ssty=1;;LTR
 T	2754 w=4.5706	(nil)
 Mx 	219.6987
 T	30 w=9.3312	(nil)
@@ -362,7 +362,7 @@ Mx 	23.7240
 T	3986 a=25.5240	(nil)
 Mx 	240.1148
 My 	212.1137
-Set font 	Libertinus Math;14.4;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;14.4;400;Regular;normal;+ssty=1;;LTR
 T	2758 w=6.7190	(nil)
 Mx 	246.8338
 T	30 w=9.3312	(nil)
@@ -378,7 +378,7 @@ Mx 	19.1340
 T	3985 a=22.3740	(nil)
 Mx 	267.2499
 My 	211.8257
-Set font 	Libertinus Math;14.4;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;14.4;400;Regular;normal;+ssty=1;;LTR
 T	2757 w=10.2154	(nil)
 Mx 	277.4652
 T	30 w=9.3312	(nil)
@@ -390,15 +390,15 @@ Set font 	Libertinus Math;18;400;Regular;normal;;;LTR
 T	70 w=8.0460	(nil)
 Mx 	316.7352
 My 	178.2755
-Set font 	Libertinus Math;10.8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;10.8;400;Regular;normal;+ssty=2;;LTR
 T	78 w=8.5320	(nil)
 Mx 	304.5384
 My 	185.5331
-Set font 	Libertinus Math;14.4;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;14.4;400;Regular;normal;+ssty=1;;LTR
 T	2087 w=12.1968	(nil)
 Mx 	316.7352
 My 	189.5363
-Set font 	Libertinus Math;10.8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;10.8;400;Regular;normal;+ssty=2;;LTR
 T	2753 w=2.4732	(nil)
 Mx 	319.2084
 T	30 w=6.9984	(nil)
@@ -406,11 +406,11 @@ Mx 	326.2068
 T	17 w=5.0220	(nil)
 Mx 	334.8480
 My 	185.5331
-Set font 	Libertinus Math;14.4;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;14.4;400;Regular;normal;+ssty=1;;LTR
 T	3409 w=6.7334	(nil)
 Mx 	340.5792
 My 	188.5571
-Set font 	Libertinus Math;10.8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;10.8;400;Regular;normal;+ssty=2;;LTR
 T	2753 w=2.4732	(nil)
 Mx 	343.0524
 T	13 w=2.3760	(nil)
@@ -440,7 +440,7 @@ Mx 	148.0572
 T	29 w=2.2900	(:)
 Mx 	161.2722
 My 	230.7047
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2100 w=6.2800	(nil)
 Mx 	153.0222
 My 	235.7947
@@ -448,7 +448,7 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	2250 w=8.2500	(nil)
 Mx 	161.2722
 My 	238.6047
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2754 w=2.5392	(nil)
 Mx 	163.8114
 T	30 w=5.1840	(nil)
@@ -463,7 +463,7 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	2085 w=10.0200	(nil)
 Mx 	184.8321
 My 	238.6047
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2758 w=3.7328	(nil)
 Mx 	188.5649
 T	30 w=5.1840	(nil)
@@ -478,7 +478,7 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	2087 w=8.4700	(nil)
 Mx 	208.0356
 My 	238.5747
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2757 w=5.6752	(nil)
 Mx 	213.7108
 T	30 w=5.1840	(nil)
@@ -490,15 +490,15 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	70 w=4.4700	(nil)
 Mx 	235.9574
 My 	227.7007
-Set font 	Libertinus Math;6;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;6;400;Regular;normal;+ssty=2;;LTR
 T	2757 w=4.2288	(nil)
 Mx 	229.1814
 My 	231.7327
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2087 w=6.7760	(nil)
 Mx 	235.9574
 My 	233.9567
-Set font 	Libertinus Math;6;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;6;400;Regular;normal;+ssty=2;;LTR
 T	2753 w=1.3740	(nil)
 Mx 	237.3314
 T	30 w=3.8880	(nil)
@@ -506,11 +506,11 @@ Mx 	241.2194
 T	17 w=2.7900	(nil)
 Mx 	246.0201
 My 	231.7327
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	3409 w=3.7408	(nil)
 Mx 	249.2041
 My 	233.4127
-Set font 	Libertinus Math;6;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;6;400;Regular;normal;+ssty=2;;LTR
 T	2753 w=1.3740	(nil)
 Mx 	250.5781
 T	13 w=1.3200	(nil)
@@ -540,7 +540,7 @@ Mx 	160.8615
 T	29 w=2.2900	(:)
 Mx 	254.3807
 My 	264.8535
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2100 w=6.2800	(nil)
 Mx 	251.8307
 My 	276.7335
@@ -549,7 +549,7 @@ Mx 	10.3800
 T	4096 a=11.3800	(nil)
 Mx 	251.7991
 My 	287.5575
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2754 w=2.5392	(nil)
 Mx 	254.3383
 T	30 w=5.1840	(nil)
@@ -565,7 +565,7 @@ Mx 	13.1800
 T	3986 a=14.1800	(nil)
 Mx 	265.6806
 My 	287.5385
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2758 w=3.7328	(nil)
 Mx 	269.4134
 T	30 w=5.1840	(nil)
@@ -581,7 +581,7 @@ Mx 	10.6300
 T	3985 a=12.4300	(nil)
 Mx 	280.7556
 My 	287.3785
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2757 w=5.6752	(nil)
 Mx 	286.4308
 T	30 w=5.1840	(nil)
@@ -593,15 +593,15 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	70 w=4.4700	(nil)
 Mx 	308.2475
 My 	268.7395
-Set font 	Libertinus Math;6;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;6;400;Regular;normal;+ssty=2;;LTR
 T	2757 w=4.2288	(nil)
 Mx 	301.4715
 My 	272.7715
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2087 w=6.7760	(nil)
 Mx 	308.2475
 My 	274.9955
-Set font 	Libertinus Math;6;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;6;400;Regular;normal;+ssty=2;;LTR
 T	2753 w=1.3740	(nil)
 Mx 	309.6215
 T	30 w=3.8880	(nil)
@@ -609,11 +609,11 @@ Mx 	313.5095
 T	17 w=2.7900	(nil)
 Mx 	318.3102
 My 	272.7715
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	3409 w=3.7408	(nil)
 Mx 	321.4942
 My 	274.4515
-Set font 	Libertinus Math;6;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;6;400;Regular;normal;+ssty=2;;LTR
 T	2753 w=1.3740	(nil)
 Mx 	322.8682
 T	13 w=1.3200	(nil)
@@ -644,7 +644,7 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	2117 w=7.4000	(nil)
 Mx 	159.5797
 My 	312.2195
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2738 w=3.7616	(nil)
 Mx 	163.7713
 My 	308.8795
@@ -659,14 +659,14 @@ T	30 w=6.4800	(nil)
 Draw line	198.9417	305.9545	5.7340	0.6500
 Mx 	199.9487
 My 	304.0795
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	18 w=3.7200	(nil)
 Mx 	198.9417
 My 	313.6795
 T	3410 w=3.0096	(nil)
 Mx 	201.5417
 My 	315.3595
-Set font 	Libertinus Math;6;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;6;400;Regular;normal;+ssty=2;;LTR
 T	17 w=2.7900	(nil)
 Mx 	205.4257
 My 	308.8795
@@ -674,7 +674,7 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	2115 w=11.2500	(nil)
 Mx 	213.6757
 My 	312.2195
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2741 w=5.0112	(nil)
 Mx 	219.1169
 My 	308.8795
@@ -688,7 +688,7 @@ Mx 	248.3500
 T	2113 w=6.4500	(nil)
 Mx 	251.8000
 My 	312.2195
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	17 w=3.7200	(nil)
 Mx 	253.3000
 My 	303.0795
@@ -736,7 +736,7 @@ Set font 	Libertinus Math;18;400;Regular;normal;;;LTR
 T	2117 w=13.3200	(nil)
 Mx 	217.6133
 My 	339.8267
-Set font 	Libertinus Math;14.4;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;14.4;400;Regular;normal;+ssty=1;;LTR
 T	2738 w=6.7709	(nil)
 Mx 	225.1582
 My 	333.8147
@@ -751,14 +751,14 @@ T	30 w=11.6640	(nil)
 Draw line	287.6488	328.5497	10.3212	1.1700
 Mx 	289.4614
 My 	325.1747
-Set font 	Libertinus Math;14.4;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;14.4;400;Regular;normal;+ssty=1;;LTR
 T	18 w=6.6960	(nil)
 Mx 	287.6488
 My 	342.4547
 T	3410 w=5.4173	(nil)
 Mx 	292.3288
 My 	345.4787
-Set font 	Libertinus Math;10.8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;10.8;400;Regular;normal;+ssty=2;;LTR
 T	17 w=5.0220	(nil)
 Mx 	298.7200
 My 	333.8147
@@ -766,7 +766,7 @@ Set font 	Libertinus Math;18;400;Regular;normal;;;LTR
 T	2115 w=20.2500	(nil)
 Mx 	313.5700
 My 	339.8267
-Set font 	Libertinus Math;14.4;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;14.4;400;Regular;normal;+ssty=1;;LTR
 T	2741 w=9.0202	(nil)
 Mx 	323.3642
 My 	333.8147
@@ -780,7 +780,7 @@ Mx 	375.8292
 T	2113 w=11.6100	(nil)
 Mx 	382.0392
 My 	339.8267
-Set font 	Libertinus Math;14.4;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;14.4;400;Regular;normal;+ssty=1;;LTR
 T	17 w=6.6960	(nil)
 Mx 	384.7392
 My 	323.3747
@@ -822,7 +822,7 @@ Mx 	9.7200
 T	4231 a=10.7600	(nil)
 Mx 	237.3944
 My 	390.1805
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2738 w=3.7616	(nil)
 Mx 	241.5860
 My 	381.4105
@@ -843,7 +843,7 @@ My 	388.4105
 T	3410 w=3.8900	(nil)
 Mx 	279.7860
 My 	390.5105
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	17 w=3.7200	(nil)
 Mx 	284.6860
 My 	384.4305
@@ -852,7 +852,7 @@ Mx 	12.1800
 T	3983 a=13.7400	(nil)
 Mx 	295.9260
 My 	390.1805
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2741 w=5.0112	(nil)
 Mx 	301.3672
 My 	381.4105
@@ -868,7 +868,7 @@ Mx 	5.3800
 T	3981 a=6.9400	(nil)
 Mx 	334.8828
 My 	390.1805
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	17 w=3.7200	(nil)
 Mx 	337.3828
 My 	370.1905
@@ -918,7 +918,7 @@ Mx 	17.4960
 T	4231 a=19.3680	(nil)
 Mx 	189.7997
 My 	463.3121
-Set font 	Libertinus Math;14.4;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;14.4;400;Regular;normal;+ssty=1;;LTR
 T	2738 w=6.7709	(nil)
 Mx 	197.3446
 My 	447.5261
@@ -939,7 +939,7 @@ My 	460.1261
 T	3410 w=7.0020	(nil)
 Mx 	265.5046
 My 	463.9061
-Set font 	Libertinus Math;14.4;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;14.4;400;Regular;normal;+ssty=1;;LTR
 T	17 w=6.6960	(nil)
 Mx 	273.7246
 My 	452.9621
@@ -948,7 +948,7 @@ Mx 	21.9240
 T	3983 a=24.7320	(nil)
 Mx 	293.9566
 My 	463.3121
-Set font 	Libertinus Math;14.4;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;14.4;400;Regular;normal;+ssty=1;;LTR
 T	2741 w=9.0202	(nil)
 Mx 	303.7508
 My 	447.5261
@@ -964,7 +964,7 @@ Mx 	9.6840
 T	3981 a=12.4920	(nil)
 Mx 	364.0788
 My 	463.3121
-Set font 	Libertinus Math;14.4;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;14.4;400;Regular;normal;+ssty=1;;LTR
 T	17 w=6.6960	(nil)
 Mx 	368.5788
 My 	427.3301
@@ -1004,7 +1004,7 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	2117 w=7.4000	(nil)
 Mx 	141.4314
 My 	487.1361
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2738 w=3.7616	(nil)
 Mx 	145.6230
 My 	483.7961
@@ -1019,14 +1019,14 @@ T	30 w=6.4800	(nil)
 Draw line	180.8075	480.8711	5.7340	0.6500
 Mx 	181.8145
 My 	478.9961
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	18 w=3.7200	(nil)
 Mx 	180.8075
 My 	488.5961
 T	3410 w=3.0096	(nil)
 Mx 	183.4075
 My 	490.2761
-Set font 	Libertinus Math;6;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;6;400;Regular;normal;+ssty=2;;LTR
 T	17 w=2.7900	(nil)
 Mx 	187.2915
 My 	483.7961
@@ -1034,7 +1034,7 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	2115 w=11.2500	(nil)
 Mx 	195.5415
 My 	487.1361
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2741 w=5.0112	(nil)
 Mx 	200.9827
 My 	483.7961
@@ -1048,7 +1048,7 @@ Mx 	230.2258
 T	2113 w=6.4500	(nil)
 Mx 	233.6758
 My 	487.1361
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	17 w=3.7200	(nil)
 Mx 	235.1758
 My 	477.9961
@@ -1088,7 +1088,7 @@ Mx 	9.7200
 T	4231 a=10.7600	(nil)
 Mx 	237.3944
 My 	534.9299
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2738 w=3.7616	(nil)
 Mx 	241.5860
 My 	526.1599
@@ -1109,7 +1109,7 @@ My 	533.1599
 T	3410 w=3.8900	(nil)
 Mx 	279.7860
 My 	535.2599
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	17 w=3.7200	(nil)
 Mx 	284.6860
 My 	529.1799
@@ -1118,7 +1118,7 @@ Mx 	12.1800
 T	3983 a=13.7400	(nil)
 Mx 	295.9260
 My 	534.9299
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2741 w=5.0112	(nil)
 Mx 	301.3672
 My 	526.1599
@@ -1134,7 +1134,7 @@ Mx 	5.3800
 T	3981 a=6.9400	(nil)
 Mx 	334.8828
 My 	534.9299
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	17 w=3.7200	(nil)
 Mx 	337.3828
 My 	514.9399
diff --git a/tests/math-fractions.expected b/tests/math-fractions.expected
index acc9bf02a..3e6267ca1 100644
--- a/tests/math-fractions.expected
+++ b/tests/math-fractions.expected
@@ -17,7 +17,7 @@ T	29 w=2.2900	(:)
 Draw line	154.6577	48.8335	37.9800	0.6500
 Mx 	171.7877
 My 	46.9585
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	18 w=3.7200	(nil)
 Mx 	154.6577
 My 	57.6215
@@ -27,7 +27,7 @@ T	12 w=5.1840	(nil)
 Draw line	164.3117	55.2815	27.5760	0.5200
 Mx 	176.7047
 My 	53.7815
-Set font 	Libertinus Math;6;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;6;400;Regular;normal;+ssty=2;;LTR
 T	18 w=2.7900	(nil)
 Mx 	164.3117
 My 	62.8495
@@ -61,7 +61,7 @@ T	12 w=6.4800	(nil)
 Draw line	205.1412	48.8335	3.7200	0.6500
 Mx 	205.1412
 My 	46.9585
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	18 w=3.7200	(nil)
 My 	56.5585
 T	19 w=3.7200	(nil)
@@ -92,7 +92,7 @@ T	12 w=6.4800	(nil)
 Draw line	281.9868	110.8003	29.8020	0.6500
 Mx 	295.0278
 My 	108.9253
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	18 w=3.7200	(nil)
 Mx 	281.9868
 My 	119.5883
@@ -102,7 +102,7 @@ T	12 w=5.1840	(nil)
 Draw line	291.6408	117.2483	19.3980	0.5200
 Mx 	299.9448
 My 	115.7483
-Set font 	Libertinus Math;6;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;6;400;Regular;normal;+ssty=2;;LTR
 T	18 w=2.7900	(nil)
 Mx 	291.6408
 My 	124.8163
@@ -147,7 +147,7 @@ T	29 w=2.2900	(:)
 Draw line	136.5094	144.6193	37.9800	0.6500
 Mx 	153.6394
 My 	142.7443
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	18 w=3.7200	(nil)
 Mx 	136.5094
 My 	153.4073
@@ -157,7 +157,7 @@ T	12 w=5.1840	(nil)
 Draw line	146.1634	151.0673	27.5760	0.5200
 Mx 	158.5564
 My 	149.5673
-Set font 	Libertinus Math;6;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;6;400;Regular;normal;+ssty=2;;LTR
 T	18 w=2.7900	(nil)
 Mx 	146.1634
 My 	158.6353
@@ -191,7 +191,7 @@ T	12 w=6.4800	(nil)
 Draw line	186.9970	144.6193	3.7200	0.6500
 Mx 	186.9970
 My 	142.7443
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	18 w=3.7200	(nil)
 My 	152.3443
 T	19 w=3.7200	(nil)
@@ -222,7 +222,7 @@ T	12 w=6.4800	(nil)
 Draw line	281.9868	206.5861	29.8020	0.6500
 Mx 	295.0278
 My 	204.7111
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	18 w=3.7200	(nil)
 Mx 	281.9868
 My 	215.3741
@@ -232,7 +232,7 @@ T	12 w=5.1840	(nil)
 Draw line	291.6408	213.0341	19.3980	0.5200
 Mx 	299.9448
 My 	211.5341
-Set font 	Libertinus Math;6;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;6;400;Regular;normal;+ssty=2;;LTR
 T	18 w=2.7900	(nil)
 Mx 	291.6408
 My 	220.6021
@@ -263,7 +263,7 @@ T	19 w=4.6500	(nil)
 Draw line	50.5138	240.4851	10.7360	0.6500
 Mx 	50.5138
 My 	238.6101
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2753 w=1.8320	(nil)
 Mx 	52.3458
 T	12 w=5.1840	(nil)
diff --git a/tests/math-macros.expected b/tests/math-macros.expected
index 857e88b8d..5f8bc25cd 100644
--- a/tests/math-macros.expected
+++ b/tests/math-macros.expected
@@ -6,7 +6,7 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	84 74 79 w=12.0300	(nil)
 Mx 	255.0472
 My 	47.9345
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	9 w=2.8480	(nil)
 Mx 	257.8952
 T	19 w=3.7200	(nil)
@@ -36,7 +36,7 @@ Mx 	316.7856
 T	10 w=3.5600	(nil)
 Mx 	320.3456
 My 	47.1045
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
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 My 	52.1045
@@ -68,7 +68,7 @@ Mx 	10.6300
 T	3985 a=12.4300	(nil)
 Mx 	304.7752
 My 	97.9626
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
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@@ -76,7 +76,7 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
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-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
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 My 	124.5066
@@ -87,7 +87,7 @@ Mx 	265.8036
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 My 	126.6066
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
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@@ -97,7 +97,7 @@ Mx 	278.4903
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+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
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+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
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diff --git a/tests/math-primes-asterisk.expected b/tests/math-primes-asterisk.expected
new file mode 100644
index 000000000..cdc4bbdf0
--- /dev/null
+++ b/tests/math-primes-asterisk.expected
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+Finish
diff --git a/tests/math-primes-asterisk.sil b/tests/math-primes-asterisk.sil
new file mode 100644
index 000000000..ff55b0350
--- /dev/null
+++ b/tests/math-primes-asterisk.sil
@@ -0,0 +1,30 @@
+
+\begin[papersize=a5]{document}
+\use[module=packages.math]
+
+% TeX * = \ast
+\math[mode=display]{a * b \quad a \ast b \quad a^* \quad a^\ast \quad a^\ast_0}
+
+% TeX ' and '' and ''' expand to superscripted \prime
+\math[mode=display]{a' \quad a'' \quad a''' \quad  a'_0 \quad a''_0 \quad a'''_0}
+
+% TeX-like prime commands used in superscript lead to the same result
+\math[mode=display]{a^\prime \quad a^\dprime \quad a^\prime_0 \quad a^\dprime_0}
+
+% TeX allows ' etc. with another superscript
+\math[mode=display]{b'^2 \quad b''^2 \quad b'''^2 \quad b'^2_0 \quad b''^2_0 \quad b'''^2_0}
+% The TeXbook p. 130 exercise 16.4 moreover combines ' with superscript and subscript
+% The rule is not detailed, but Knuth's example speaks for itself:
+\math[mode=display]{f'[g(x)]g'(x) \quad y_1'+y_2'' \quad y'_1+y''_2 \quad y'''_3+g'^2}
+% Knuth's last example implies the following:
+\math[mode=display]{
+       x'^2     = x^{\prime2} % sup (atoms)
+ \quad x'^{n+1} = x^{\prime n+1} % sup (expression)
+ \quad x_0'^2   = x_0^{\prime2} % subsup
+ \quad x'^2_1   = x^{\prime2}_1 % supsub
+}
+
+% Check one level up
+\math[mode=display]{x'^{y'}}
+
+\end{document}
diff --git a/tests/math-spaces.expected b/tests/math-spaces.expected
index a7fe5faa6..5e26a8a20 100644
--- a/tests/math-spaces.expected
+++ b/tests/math-spaces.expected
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 My 	123.7628
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	85 73 74 79 w=13.3360	(nil)
 Mx 	69.0331
 Mx 	6.3200
@@ -97,7 +97,7 @@ Mx 	175.4714
 T	70 79 69 w=11.9600	(nil)
 Mx 	187.4314
 My 	125.4428
-Set font 	Libertinus Math;6;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;6;400;Regular;normal;+ssty=2;;LTR
 T	85 73 74 79 w=10.0020	(nil)
 Mx 	198.4334
 Mx 	4.7400
@@ -178,7 +178,7 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	2768 w=5.4100	(nil)
 Mx 	54.3638
 My 	215.5152
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	79 85 73 74 79 w=17.6720	(nil)
 Mx 	70.7024
 Mx 	4.3360
@@ -192,7 +192,7 @@ Mx 	105.8384
 T	70 79 69 w=11.9600	(nil)
 Mx 	117.7984
 My 	217.1952
-Set font 	Libertinus Math;6;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;6;400;Regular;normal;+ssty=2;;LTR
 T	79 85 73 74 79 w=13.2540	(nil)
 Mx 	130.0524
 Mx 	3.2520
@@ -220,7 +220,7 @@ Set font 	Libertinus Math;6;400;Regular;normal;;;LTR
 T	2768 w=3.2460	(nil)
 Mx 	52.5238
 My 	245.1016
-Set font 	Libertinus Math;4.8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;4.8;400;Regular;normal;+ssty=1;;LTR
 T	85 73 74 79 w=8.0016	(nil)
 Mx 	61.3254
 Mx 	3.7920
@@ -239,7 +239,7 @@ Mx 	136.4025
 T	70 79 69 w=7.1760	(nil)
 Mx 	143.5785
 My 	246.1096
-Set font 	Libertinus Math;3.6;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;3.6;400;Regular;normal;+ssty=2;;LTR
 T	85 73 74 79 w=6.0012	(nil)
 Mx 	150.1797
 Mx 	2.8440
@@ -262,7 +262,7 @@ Set font 	Libertinus Math;18;400;Regular;normal;;;LTR
 T	2768 w=9.7380	(nil)
 Mx 	58.0438
 My 	259.6340
-Set font 	Libertinus Math;14.4;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;14.4;400;Regular;normal;+ssty=1;;LTR
 T	85 73 74 79 w=24.0048	(nil)
 Mx 	84.4486
 Mx 	11.3760
@@ -281,7 +281,7 @@ Mx 	253.5529
 T	70 79 69 w=21.5280	(nil)
 Mx 	275.0809
 My 	262.6580
-Set font 	Libertinus Math;10.8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;10.8;400;Regular;normal;+ssty=2;;LTR
 T	85 73 74 79 w=18.0036	(nil)
 Mx 	294.8845
 Mx 	8.5320
diff --git a/tests/math-stretchy.expected b/tests/math-stretchy.expected
index b89f09f19..3808eff3d 100644
--- a/tests/math-stretchy.expected
+++ b/tests/math-stretchy.expected
@@ -25,7 +25,7 @@ T	3802 a=4.6500	(nil)
 Draw line	213.6217	50.1605	3.7200	0.6500
 Mx 	213.6385
 My 	47.6785
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	3411 w=3.6864	(nil)
 Mx 	213.6217
 My 	57.8855
@@ -41,7 +41,7 @@ Mx 	233.7315
 T	2768 w=5.4100	(nil)
 Mx 	239.1415
 My 	49.9855
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	19 w=3.7200	(nil)
 Mx 	243.2915
 My 	53.0855
@@ -95,7 +95,7 @@ Mx 	294.9178
 T	2768 w=5.4100	(nil)
 Mx 	300.3278
 My 	89.4183
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	19 w=3.7200	(nil)
 Mx 	304.4778
 My 	93.1683
@@ -134,7 +134,7 @@ T	3802 a=4.6500	(nil)
 Draw line	195.4754	118.3363	3.7200	0.6500
 Mx 	195.4922
 My 	115.8543
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	3411 w=3.6864	(nil)
 Mx 	195.4754
 My 	126.0613
@@ -150,7 +150,7 @@ Mx 	215.5892
 T	2768 w=5.4100	(nil)
 Mx 	220.9992
 My 	118.1613
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	19 w=3.7200	(nil)
 Mx 	225.1492
 My 	121.2613
@@ -204,7 +204,7 @@ Mx 	294.9178
 T	2768 w=5.4100	(nil)
 Mx 	300.3278
 My 	157.5941
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	19 w=3.7200	(nil)
 Mx 	304.4778
 My 	161.3441
diff --git a/tests/math-subsup.expected b/tests/math-subsup.expected
index f6c9e6a41..02bcd7d43 100644
--- a/tests/math-subsup.expected
+++ b/tests/math-subsup.expected
@@ -23,7 +23,7 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	2746 w=4.5400	(nil)
 Mx 	189.2199
 My 	47.6905
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2768 w=4.1984	(nil)
 Mx 	196.1054
 My 	50.7905
@@ -33,7 +33,7 @@ Mx 	204.8425
 T	2768 w=5.4100	(nil)
 Mx 	209.4425
 My 	52.8905
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	19 w=3.7200	(nil)
 Mx 	215.8495
 My 	50.7905
@@ -43,7 +43,7 @@ Mx 	224.5866
 T	3411 w=4.8900	(nil)
 Mx 	228.0666
 My 	53.3705
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	17 w=3.7200	(nil)
 Mx 	229.4766
 My 	46.9745
@@ -54,7 +54,7 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	13 w=2.2000	(nil)
 Mx 	237.4933
 My 	53.3705
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	18 19 w=7.4400	(nil)
 My 	46.9745
 T	18 21 w=7.4400	(nil)
@@ -86,7 +86,7 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	2746 w=4.5400	(nil)
 Mx 	268.6758
 My 	80.2599
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2768 w=4.1984	(nil)
 Mx 	275.5264
 My 	84.0099
@@ -96,7 +96,7 @@ Mx 	284.2287
 T	2768 w=5.4100	(nil)
 Mx 	288.8287
 My 	86.1099
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	19 w=3.7200	(nil)
 Mx 	295.2009
 My 	84.0099
@@ -106,7 +106,7 @@ Mx 	303.9031
 T	3411 w=4.8900	(nil)
 Mx 	307.3831
 My 	86.5899
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	17 w=3.7200	(nil)
 Mx 	308.7931
 My 	80.1939
@@ -117,7 +117,7 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	13 w=2.2000	(nil)
 Mx 	316.8098
 My 	86.5899
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	18 19 w=7.4400	(nil)
 My 	80.1939
 T	18 21 w=7.4400	(nil)
@@ -148,7 +148,7 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	2746 w=4.5400	(nil)
 Mx 	171.0717
 My 	102.3480
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2768 w=4.1984	(nil)
 Mx 	177.9592
 My 	105.4480
@@ -158,7 +158,7 @@ Mx 	186.6983
 T	2768 w=5.4100	(nil)
 Mx 	191.2983
 My 	107.5480
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	19 w=3.7200	(nil)
 Mx 	197.7074
 My 	105.4480
@@ -168,7 +168,7 @@ Mx 	206.4466
 T	3411 w=4.8900	(nil)
 Mx 	209.9266
 My 	108.0280
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	17 w=3.7200	(nil)
 Mx 	211.3366
 My 	101.6320
@@ -179,7 +179,7 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	13 w=2.2000	(nil)
 Mx 	219.3532
 My 	108.0280
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	18 19 w=7.4400	(nil)
 My 	101.6320
 T	18 21 w=7.4400	(nil)
@@ -211,7 +211,7 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	2746 w=4.5400	(nil)
 Mx 	268.8008
 My 	134.8197
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2768 w=4.1984	(nil)
 Mx 	275.6514
 My 	138.5697
@@ -221,7 +221,7 @@ Mx 	284.3537
 T	2768 w=5.4100	(nil)
 Mx 	288.9537
 My 	140.6697
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	19 w=3.7200	(nil)
 Mx 	295.3259
 My 	138.5697
@@ -231,7 +231,7 @@ Mx 	304.0281
 T	3411 w=4.8900	(nil)
 Mx 	307.5081
 My 	141.1497
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	17 w=3.7200	(nil)
 Mx 	308.9181
 My 	134.7537
@@ -242,7 +242,7 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	13 w=2.2000	(nil)
 Mx 	316.9348
 My 	141.1497
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	18 19 w=7.4400	(nil)
 My 	134.7537
 T	18 21 w=7.4400	(nil)
diff --git a/tests/math-tables-mathml.expected b/tests/math-tables-mathml.expected
index 55063c30b..2e52b90b9 100644
--- a/tests/math-tables-mathml.expected
+++ b/tests/math-tables-mathml.expected
@@ -96,7 +96,7 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	2765 w=4.9200	(nil)
 Mx 	158.4643
 My 	142.8283
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	17 w=3.7200	(nil)
 Mx 	168.6143
 My 	140.7283
@@ -109,7 +109,7 @@ My 	154.9883
 T	2765 w=4.9200	(nil)
 Mx 	158.4643
 My 	157.0883
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	18 w=3.7200	(nil)
 Mx 	168.6143
 My 	154.9883
@@ -122,7 +122,7 @@ My 	169.6743
 T	2765 w=4.9200	(nil)
 Mx 	158.4515
 My 	171.7743
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2758 w=3.7328	(nil)
 Mx 	168.6143
 My 	169.6743
@@ -132,7 +132,7 @@ Mx 	181.0943
 T	2765 w=4.9200	(nil)
 Mx 	185.6543
 My 	171.7743
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2758 w=3.7328	(nil)
 Mx 	189.3871
 T	2088 w=5.1840	(nil)
@@ -146,7 +146,7 @@ Mx 	209.7137
 T	2765 w=4.9200	(nil)
 Mx 	214.2737
 My 	171.7743
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2758 w=3.7328	(nil)
 Mx 	218.0065
 T	2088 w=5.1840	(nil)
@@ -184,7 +184,7 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	2765 w=4.9200	(nil)
 Mx 	249.8991
 My 	201.1261
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	17 w=3.7200	(nil)
 Mx 	260.0491
 My 	199.0261
@@ -197,7 +197,7 @@ My 	213.2861
 T	2765 w=4.9200	(nil)
 Mx 	249.8991
 My 	215.3861
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	18 w=3.7200	(nil)
 Mx 	260.0491
 My 	213.2861
@@ -210,7 +210,7 @@ My 	227.9721
 T	2765 w=4.9200	(nil)
 Mx 	249.8863
 My 	230.0721
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2758 w=3.7328	(nil)
 Mx 	260.0491
 My 	227.9721
@@ -220,7 +220,7 @@ Mx 	272.5291
 T	2765 w=4.9200	(nil)
 Mx 	277.0891
 My 	230.0721
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2758 w=3.7328	(nil)
 Mx 	280.8219
 T	2088 w=5.1840	(nil)
@@ -234,7 +234,7 @@ Mx 	301.0803
 T	2765 w=4.9200	(nil)
 Mx 	305.6403
 My 	230.0721
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2758 w=3.7328	(nil)
 Mx 	309.3731
 T	2088 w=5.1840	(nil)
diff --git a/tests/math-tables-tex.expected b/tests/math-tables-tex.expected
index 0c7122c6d..9dc9f8c3a 100644
--- a/tests/math-tables-tex.expected
+++ b/tests/math-tables-tex.expected
@@ -96,7 +96,7 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	2765 w=4.9200	(nil)
 Mx 	140.3160
 My 	142.8283
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	17 w=3.7200	(nil)
 Mx 	150.4660
 My 	140.7283
@@ -109,7 +109,7 @@ My 	154.9883
 T	2765 w=4.9200	(nil)
 Mx 	140.3160
 My 	157.0883
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	18 w=3.7200	(nil)
 Mx 	150.4660
 My 	154.9883
@@ -122,7 +122,7 @@ My 	169.6743
 T	2765 w=4.9200	(nil)
 Mx 	140.3032
 My 	171.7743
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2758 w=3.7328	(nil)
 Mx 	150.4660
 My 	169.6743
@@ -132,7 +132,7 @@ Mx 	162.9460
 T	2765 w=4.9200	(nil)
 Mx 	167.5060
 My 	171.7743
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2758 w=3.7328	(nil)
 Mx 	171.2388
 T	2088 w=5.1840	(nil)
@@ -146,7 +146,7 @@ Mx 	191.5694
 T	2765 w=4.9200	(nil)
 Mx 	196.1294
 My 	171.7743
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2758 w=3.7328	(nil)
 Mx 	199.8622
 T	2088 w=5.1840	(nil)
@@ -184,7 +184,7 @@ Set font 	Libertinus Math;10;400;Regular;normal;;;LTR
 T	2765 w=4.9200	(nil)
 Mx 	249.8991
 My 	200.1740
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	17 w=3.7200	(nil)
 Mx 	260.0491
 My 	198.0740
@@ -197,7 +197,7 @@ My 	212.3340
 T	2765 w=4.9200	(nil)
 Mx 	249.8991
 My 	214.4340
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	18 w=3.7200	(nil)
 Mx 	260.0491
 My 	212.3340
@@ -210,7 +210,7 @@ My 	227.0200
 T	2765 w=4.9200	(nil)
 Mx 	249.8863
 My 	229.1200
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2758 w=3.7328	(nil)
 Mx 	260.0491
 My 	227.0200
@@ -220,7 +220,7 @@ Mx 	272.5291
 T	2765 w=4.9200	(nil)
 Mx 	277.0891
 My 	229.1200
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2758 w=3.7328	(nil)
 Mx 	280.8219
 T	2088 w=5.1840	(nil)
@@ -234,7 +234,7 @@ Mx 	301.0803
 T	2765 w=4.9200	(nil)
 Mx 	305.6403
 My 	229.1200
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2758 w=3.7328	(nil)
 Mx 	309.3731
 T	2088 w=5.1840	(nil)
diff --git a/tests/math-variants.expected b/tests/math-variants.expected
index 3c850414f..d664b9014 100644
--- a/tests/math-variants.expected
+++ b/tests/math-variants.expected
@@ -33,7 +33,7 @@ Mx 	211.9311
 T	70 w=4.4700	(nil)
 Mx 	216.4011
 My 	48.8745
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2758 w=3.7328	(nil)
 Mx 	220.5639
 My 	51.9745
@@ -65,7 +65,7 @@ Mx 	2.8200
 T	10 a=3.5600	(nil)
 Mx 	297.3059
 My 	46.9745
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	19 w=3.7200	(nil)
 Mx 	49.7638
 My 	72.8485
@@ -108,7 +108,7 @@ Mx 	294.6107
 T	70 w=8.0460	(nil)
 Mx 	302.6567
 My 	67.2685
-Set font 	Libertinus Math;14.4;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;14.4;400;Regular;normal;+ssty=1;;LTR
 T	2758 w=6.7190	(nil)
 Mx 	310.1497
 My 	72.8485
@@ -140,7 +140,7 @@ Mx 	5.0760
 T	10 a=6.4080	(nil)
 Mx 	448.0697
 My 	63.8485
-Set font 	Libertinus Math;14.4;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;14.4;400;Regular;normal;+ssty=1;;LTR
 T	19 w=6.6960	(nil)
 Mx 	49.7638
 My 	85.1788
@@ -176,7 +176,7 @@ Mx 	272.1192
 T	70 w=4.4700	(nil)
 Mx 	276.5892
 My 	103.8323
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2758 w=3.7328	(nil)
 Mx 	280.7520
 My 	107.5823
@@ -208,7 +208,7 @@ Mx 	2.8200
 T	10 a=3.5600	(nil)
 Mx 	357.2886
 My 	102.5823
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	19 w=3.7200	(nil)
 Mx 	49.7638
 My 	128.6643
@@ -252,7 +252,7 @@ Mx 	251.7043
 T	70 w=8.0460	(nil)
 Mx 	259.7503
 My 	152.2218
-Set font 	Libertinus Math;14.4;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;14.4;400;Regular;normal;+ssty=1;;LTR
 T	2758 w=6.7190	(nil)
 Mx 	267.2433
 My 	158.9718
@@ -284,7 +284,7 @@ Mx 	5.0760
 T	10 a=6.4080	(nil)
 Mx 	405.0093
 My 	149.9718
-Set font 	Libertinus Math;14.4;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;14.4;400;Regular;normal;+ssty=1;;LTR
 T	19 w=6.6960	(nil)
 Mx 	49.7638
 My 	182.6958
@@ -319,7 +319,7 @@ Mx 	193.7972
 T	70 w=4.4700	(nil)
 Mx 	198.2672
 My 	179.5958
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2758 w=3.7328	(nil)
 Mx 	202.4300
 My 	182.6958
@@ -351,7 +351,7 @@ Mx 	2.8200
 T	10 a=3.5600	(nil)
 Mx 	276.8279
 My 	177.6958
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	19 w=3.7200	(nil)
 Mx 	49.7638
 My 	194.6958
@@ -387,7 +387,7 @@ Mx 	273.2992
 T	70 w=4.4700	(nil)
 Mx 	277.7692
 My 	213.3492
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	2758 w=3.7328	(nil)
 Mx 	281.9320
 My 	217.0992
@@ -419,7 +419,7 @@ Mx 	2.8200
 T	10 a=3.5600	(nil)
 Mx 	356.1086
 My 	212.0992
-Set font 	Libertinus Math;8;400;Regular;normal;;;LTR
+Set font 	Libertinus Math;8;400;Regular;normal;+ssty=1;;LTR
 T	19 w=3.7200	(nil)
 Mx 	295.2916
 My 	780.6177
diff --git a/tests/verbatim-lines.sil b/tests/verbatim-lines.sil
index 9d7cc2d14..05e07b076 100644
--- a/tests/verbatim-lines.sil
+++ b/tests/verbatim-lines.sil
@@ -1,3 +1,4 @@
+% KNOWNBAD https://github.com/sile-typesetter/sile/issues/2168
 \begin[papersize=a6]{document}
 \nofolios
 \neverindent