diff --git a/doc/doc-support/default.nix b/doc/doc-support/default.nix
index e9cb96e37fd..bea3e12a70b 100644
--- a/doc/doc-support/default.nix
+++ b/doc/doc-support/default.nix
@@ -75,7 +75,7 @@ in pkgs.runCommand "doc-support" {}
     ln -s ${epub-xsl} ./epub.xsl
     ln -s ${xhtml-xsl} ./xhtml.xsl
 
-    ln -s ${../../nixos/doc/xmlformat.conf} ./xmlformat.conf
+    ln -s ${./xmlformat.conf} ./xmlformat.conf
     ln -s ${pkgs.documentation-highlighter} ./highlightjs
 
     echo -n "${version}" > ./version
diff --git a/nixos/doc/xmlformat.conf b/doc/doc-support/xmlformat.conf
similarity index 100%
rename from nixos/doc/xmlformat.conf
rename to doc/doc-support/xmlformat.conf
diff --git a/nixos/doc/manual/.gitignore b/nixos/doc/manual/.gitignore
deleted file mode 100644
index 87928262421..00000000000
--- a/nixos/doc/manual/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-generated
-manual-combined.xml
diff --git a/nixos/doc/manual/Makefile b/nixos/doc/manual/Makefile
deleted file mode 100644
index b2b6481b20c..00000000000
--- a/nixos/doc/manual/Makefile
+++ /dev/null
@@ -1,30 +0,0 @@
-.PHONY: all
-all: manual-combined.xml
-
-.PHONY: debug
-debug: generated manual-combined.xml
-
-manual-combined.xml: generated *.xml **/*.xml
-	rm -f ./manual-combined.xml
-	nix-shell --pure -Q --packages xmloscopy \
-		--run "xmloscopy --docbook5 ./manual.xml ./manual-combined.xml"
-
-.PHONY: format
-format:
-	nix-shell --pure -Q --packages xmlformat \
-		--run "find ../../ -iname '*.xml' -type f -print0 | xargs -0 -I{} -n1 \
-		xmlformat --config-file '../xmlformat.conf' -i {}"
-
-.PHONY: fix-misc-xml
-fix-misc-xml:
-	find . -iname '*.xml' -type f \
-		-exec ../varlistentry-fixer.rb {} ';'
-
-.PHONY: clean
-clean:
-	rm -f manual-combined.xml generated
-
-generated:
-	nix-build ../../release.nix \
-		--attr manualGeneratedSources.x86_64-linux \
-		--out-link ./generated
diff --git a/nixos/doc/manual/shell.nix b/nixos/doc/manual/shell.nix
deleted file mode 100644
index e5ec9b8f97f..00000000000
--- a/nixos/doc/manual/shell.nix
+++ /dev/null
@@ -1,8 +0,0 @@
-let
-  pkgs = import ../../.. { };
-in
-pkgs.mkShell {
-  name = "nixos-manual";
-
-  packages = with pkgs; [ xmlformat jing xmloscopy ruby ];
-}
diff --git a/nixos/doc/varlistentry-fixer.rb b/nixos/doc/varlistentry-fixer.rb
deleted file mode 100755
index 02168016b55..00000000000
--- a/nixos/doc/varlistentry-fixer.rb
+++ /dev/null
@@ -1,124 +0,0 @@
-#!/usr/bin/env ruby
-
-# This script is written intended as a living, evolving tooling
-# to fix oopsies within the docbook documentation.
-#
-# This is *not* a formatter. It, instead, handles some known cases
-# where something bad happened, and fixing it manually is tedious.
-#
-# Read the code to see the different cases it handles.
-#
-# ALWAYS `make format` after fixing with this!
-# ALWAYS read the changes, this tool isn't yet proven to be always right.
-
-require "rexml/document"
-include REXML
-
-if ARGV.length < 1 then
-  $stderr.puts "Needs a filename."
-  exit 1
-end
-
-filename = ARGV.shift
-doc = Document.new(File.open(filename))
-
-$touched = false
-
-# Fixing varnames having a sibling element without spacing.
-# This is to fix an initial `xmlformat` issue where `term`
-# would mangle as spaces.
-#
-#   <varlistentry>
-#    <term><varname>types.separatedString</varname><replaceable>sep</replaceable> <----
-#    </term>
-#    ...
-#
-# Generates: types.separatedStringsep
-#                               ^^^^
-#
-# <varlistentry xml:id='fun-makeWrapper'>
-#  <term>
-#   <function>makeWrapper</function><replaceable>executable</replaceable><replaceable>wrapperfile</replaceable><replaceable>args</replaceable>  <----
-#  </term>
-#
-# Generates: makeWrapperexecutablewrapperfileargs
-#                     ^^^^      ^^^^    ^^  ^^
-#
-#    <term>
-#     <option>--option</option><replaceable>name</replaceable><replaceable>value</replaceable> <-----
-#    </term>
-#
-# Generates: --optionnamevalue
-#                   ^^  ^^
-doc.elements.each("//varlistentry/term") do |term|
-  ["varname", "function", "option", "replaceable"].each do |prev_name|
-    term.elements.each(prev_name) do |el|
-      if el.next_element and
-          el.next_element.name == "replaceable" and
-          el.next_sibling_node.class == Element
-        then
-        $touched = true
-        term.insert_after(el, Text.new(" "))
-      end
-    end
-  end
-end
-
-
-
-#  <cmdsynopsis>
-#   <command>nixos-option</command>
-#   <arg>
-#    <option>-I</option><replaceable>path</replaceable>        <------
-#   </arg>
-#
-# Generates: -Ipath
-#             ^^
-doc.elements.each("//cmdsynopsis/arg") do |term|
-  ["option", "replaceable"].each do |prev_name|
-    term.elements.each(prev_name) do |el|
-      if el.next_element and
-        el.next_element.name == "replaceable" and
-        el.next_sibling_node.class == Element
-      then
-        $touched = true
-        term.insert_after(el, Text.new(" "))
-      end
-    end
-  end
-end
-
-#  <cmdsynopsis>
-#   <arg>
-#    <group choice='req'>
-#    <arg choice='plain'>
-#     <option>--profile-name</option>
-#    </arg>
-#
-#    <arg choice='plain'>
-#     <option>-p</option>
-#    </arg>
-#     </group><replaceable>name</replaceable>   <----
-#   </arg>
-#
-# Generates: [{--profile-name | -p }name]
-#                                   ^^^^
-doc.elements.each("//cmdsynopsis/arg") do |term|
-  ["group"].each do |prev_name|
-    term.elements.each(prev_name) do |el|
-      if el.next_element and
-        el.next_element.name == "replaceable" and
-        el.next_sibling_node.class == Element
-      then
-        $touched = true
-        term.insert_after(el, Text.new(" "))
-      end
-    end
-  end
-end
-
-
-if $touched then
-  doc.context[:attribute_quote] = :quote
-  doc.write(output: File.open(filename, "w"))
-end