diff --git a/.gitignore b/.gitignore
index cf6af24..820f9d9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,15 +1,30 @@
 node_modules
-lua_modules
 data/*.avif
 data/*.pdf
 data/*.toml
-data/*.aux
-data/*/*-aux
-data/*.log
-data/*-aux.json
-data/decasify.js
 .fonts
 static
 public
+
+# SILE
+lua_modules
 *.rockslock
+
+# PagedJS
+data/decasify.js
+
+# LaTeX
+data/*.aux
+data/*/*-aux
+data/*.log
+
+# Glu
+data/*-aux.json
 all-system-fonts.css
+
+# Speedata
+data/*-aux.xml
+data/*-protocol.xml
+data/*.finished
+data/*.status
+data/*.vars
diff --git a/Makefile b/Makefile
index 9b6f1de..b593315 100644
--- a/Makefile
+++ b/Makefile
@@ -27,6 +27,7 @@ QUARKDOWN ?= quarkdown
 SATYSFI ?= satysfi
 SED ?= sed
 SILE ?= sile
+SPEEDATA ?= sp
 TERA ?= tera
 TOMLQ ?= tomlq
 TYPST ?= typst
@@ -45,6 +46,7 @@ PAGEDJS_ARGS = -i $< -o $@
 QUARKDOWN_ARGS = c --pdf --out $(@D) $<
 SATYSFI_ARGS = $< -o $@
 SILE_ARGS = -o $@ $<
+SPEEDATA_ARGS = --dummy --layout $< --jobname $*-speedata
 TYPST_ARGS = compile $< $@
 WEASYPRINT_ARGS = $< $@
 XELATEX_ARGS  = -interaction=batchmode -halt-on-error
@@ -169,6 +171,9 @@ data/title-case-pagedjs.pdf: data/decasify.js
 %-sile.pdf %-sile.toml: %/sile.xml | installrocks
 	$(call make_manifest,$(SILE) $(TYPESETTER_ARGS) $(SILE_ARGS))
 
+%-speedata.pdf %-speedata.toml: %/speedata.xml
+	$(call make_manifest,$(SPEEDATA) $(TYPESETTER_ARGS) $(SPEEDATA_ARGS))
+
 %-typst.pdf %-typst.toml: %/typst.typ
 	$(call make_manifest,$(TYPST) $(TYPESETTER_ARGS) $(TYPST_ARGS))
 
diff --git a/content/hello-world.md b/content/hello-world.md
index 07869c4..63ceecb 100644
--- a/content/hello-world.md
+++ b/content/hello-world.md
@@ -2,7 +2,7 @@
 title = "Hello World!"
 description = "Your most basic greeting."
 weight = 1
-extra.typesetters = [ "sile", "typst", "lualatex", "groff", "satysfi", "pagedjs", "weasyprint", "glu", "quarkdown" ]
+extra.typesetters = [ "sile", "typst", "lualatex", "groff", "satysfi", "pagedjs", "weasyprint", "glu", "quarkdown", "speedata" ]
 +++
 
 Just the simplest way to get a phrase onto a numbered page.
diff --git a/data/hello-world/speedata.xml b/data/hello-world/speedata.xml
new file mode 100644
index 0000000..700d1ef
--- /dev/null
+++ b/data/hello-world/speedata.xml
@@ -0,0 +1,30 @@
+<Layout
+  xmlns="urn:speedata.de:2009/publisher/en"
+  xmlns:sd="urn:speedata:2009/publisher/functions/en">
+
+  <Pagetype name="page" test="true()">
+    <AtPageShipout>
+      <PlaceObject column="1" row="{sd:number-of-rows() - 1}">
+        <Table stretch="max">
+          <Tr>
+            <Td align="center">
+              <Paragraph>
+                <Value select="sd:current-page()"/>
+              </Paragraph>
+            </Td>
+          </Tr>
+        </Table>
+      </PlaceObject>
+    </AtPageShipout>
+  </Pagetype>
+
+  <Record element="data">
+    <PlaceObject>
+      <Textblock>
+        <Paragraph>
+          <Value>Hello World</Value>
+        </Paragraph>
+      </Textblock>
+    </PlaceObject>
+  </Record>
+</Layout>
diff --git a/flake.lock b/flake.lock
index dee0d08..61a4dc1 100644
--- a/flake.lock
+++ b/flake.lock
@@ -52,6 +52,24 @@
         "type": "github"
       }
     },
+    "flake-utils_3": {
+      "inputs": {
+        "systems": "systems_3"
+      },
+      "locked": {
+        "lastModified": 1731533236,
+        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
     "gitignore": {
       "inputs": {
         "nixpkgs": [
@@ -153,9 +171,31 @@
         "gitignore": "gitignore",
         "glu": "glu",
         "nixpkgs": "nixpkgs",
+        "speedata-publisher": "speedata-publisher",
         "teracli": "teracli"
       }
     },
+    "speedata-publisher": {
+      "inputs": {
+        "flake-utils": "flake-utils_3",
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1787918458,
+        "narHash": "sha256-BMmjjq6gqtt1LccJDubT2jCqWVR0sTE0bA98TaSBHcY=",
+        "owner": "speedata",
+        "repo": "publisher",
+        "rev": "19ead00e64069ed5fc62712f9cd184e51928058c",
+        "type": "github"
+      },
+      "original": {
+        "owner": "speedata",
+        "repo": "publisher",
+        "type": "github"
+      }
+    },
     "systems": {
       "locked": {
         "lastModified": 1681028828,
@@ -186,6 +226,21 @@
         "type": "github"
       }
     },
+    "systems_3": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
     "teracli": {
       "inputs": {
         "naersk": "naersk",
diff --git a/flake.nix b/flake.nix
index 9191c01..5357236 100644
--- a/flake.nix
+++ b/flake.nix
@@ -17,6 +17,10 @@
       url = "github:boxesandglue/glu";
       inputs.nixpkgs.follows = "nixpkgs";
     };
+    speedata-publisher = {
+      url = "github:speedata/publisher";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
   };
 
   outputs =
@@ -45,6 +49,7 @@
         };
         inherit (gitignore.lib) gitignoreSource;
         glu = inputs.glu.packages.${system}.default;
+        speedata-publisher = inputs.speedata-publisher.packages.${system}.default;
         polytype =
           rec {
           };
@@ -78,6 +83,7 @@
             rustc
             satysfi
             sile
+            speedata-publisher
             stix-two
             teracli.defaultPackage.${system}
             texliveFull
diff --git a/src/codemirror.js b/src/codemirror.js
index 64bff60..b3f6927 100644
--- a/src/codemirror.js
+++ b/src/codemirror.js
@@ -32,6 +32,7 @@ const languageMap = {
 	// Aliases to near-matches
 	pagedjs: html,
 	sile: latex,
+	speedata: xml,
 	weasyprint: html,
 	xelatex: latex,
 };
diff --git a/templates/page.html b/templates/page.html
index 276d198..b730212 100644
--- a/templates/page.html
+++ b/templates/page.html
@@ -23,7 +23,7 @@ <h3 class="title is-3">{{ typesetter }}</h3>
     </p>
 
     <h4 class="title is-4">Input document</h4>
-    {% set source = load_data(path=manifest.src) | safe %}
+    {% set source = load_data(path=manifest.src, format="plain") %}
     {% set ext = manifest.src | split(pat=".") | last %}
     <pre class="sample" data-language="{% if typesetter != "glu" %}{{ typesetter }}{% elif ext == "md" %}markdown{% elif ext == "lua" %}lua{% else %}html{% endif %}">{{ source }}</pre>