diff --git a/schema/lib/elements/ipxe.xsd b/schema/lib/elements/ipxe.xsd
new file mode 100644
index 0000000..6a00bb7
--- /dev/null
+++ b/schema/lib/elements/ipxe.xsd
@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
+           elementFormDefault="qualified"
+           attributeFormDefault="unqualified">
+
+  <xs:include schemaLocation="../types/unix.xsd"/>
+  <xs:include schemaLocation="../types/ipxe.xsd"/>
+
+  <xs:complexType name="e_ipxe_opts">
+    <xs:choice minOccurs="1" maxOccurs="2">
+      <xs:element name="enable" maxOccurs="1">
+        <xs:complexType>
+          <xs:sequence minOccurs="1" maxOccurs="unbounded">
+            <xs:element name="opt" minOccurs="1" type="t_ipxe_patchopt"/>
+          </xs:sequence>
+        </xs:complexType>
+      </xs:element>
+      <xs:element name="disable" maxOccurs="1">
+        <xs:complexType>
+          <xs:sequence minOccurs="1" maxOccurs="unbounded">
+            <xs:element name="opt" minOccurs="1" type="t_ipxe_patchopt"/>
+          </xs:sequence>
+        </xs:complexType>
+      </xs:element>
+    </xs:choice>
+    <xs:attribute name="file" type="t_unix_anyfile" use="required"/>
+  </xs:complexType>
+
+  <xs:complexType name="e_ipxe_optswitch">
+    <xs:sequence minOccurs="1" maxOccurs="unbounded">
+      <xs:element name="opts" minOccurs="1" maxOccurs="unbounded" type="e_ipxe_opts"/>
+    </xs:sequence>
+  </xs:complexType>
+  
+  <xs:complexType name="e_ipxe_patch">
+    <xs:sequence minOccurs="1" maxOccurs="unbounded">
+      <xs:element name="patchFile" minOccurs="1" maxOccurs="unbounded" type="t_unix_filepath"/>
+    </xs:sequence>
+  </xs:complexType>
+
+</xs:schema>
diff --git a/schema/lib/types/ipxe.xsd b/schema/lib/types/ipxe.xsd
new file mode 100644
index 0000000..efea9b0
--- /dev/null
+++ b/schema/lib/types/ipxe.xsd
@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
+           elementFormDefault="qualified"
+           attributeFormDefault="unqualified">
+
+  <xs:include schemaLocation="../types/unix.xsd"/>
+
+  <xs:simpleType name="t_ipxe_patchopt">
+    <xs:restriction base="xs:token">
+      <xs:pattern value="[A-Z0-9_]+"/>
+      <xs:whiteSpace value="collapse"/>
+    </xs:restriction>
+  </xs:simpleType>
+  
+</xs:schema>
diff --git a/schema/lib/types/unix.xsd b/schema/lib/types/unix.xsd
index a4f552f..f9922e5 100644
--- a/schema/lib/types/unix.xsd
+++ b/schema/lib/types/unix.xsd
@@ -20,7 +20,14 @@
     </xs:choice>
   </xs:complexType>
 
-  <!-- This is more or less the same as t_unix_filepath with the exception of it allowing "/". -->
+  <!-- These were a pain to figure out. -->
+  <!-- wtf. doesn't seem to work?
+        dir: ^\s*(~?/[^/]*)+/?\s*$
+        file: ^\s*(~?/[^/]+)+\s*$
+        reldir: ^\s*[^/](([^/]*)+/?)+\s*$
+        relfile: ^\s*[^/]+([^/]*)+[^/]\s*$
+  -->
+  <!-- ABSOLUTE directory path -->
   <xs:simpleType name="t_unix_dirpath">
     <xs:restriction base="xs:string">
       <xs:pattern value="\s*(~?/[^/]*)+/?\s*"/>
@@ -28,13 +35,55 @@
     </xs:restriction>
   </xs:simpleType>
 
+  <!-- RELATIVE directory path -->
+  <xs:simpleType name="t_unix_reldirpath">
+    <xs:restriction base="xs:string">
+      <xs:pattern value="\s*[^/](([^/]*)+/?)+\s*"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <!-- ABSOLUTE file path -->
   <xs:simpleType name="t_unix_filepath">
     <xs:restriction base="xs:string">
-      <xs:pattern value="\s*(~?/[^/]+)+/?\s*"/>
+      <xs:pattern value="\s*(~?/[^/]+)+\s*"/>
       <xs:whiteSpace value="collapse"/>
     </xs:restriction>
   </xs:simpleType>
 
+  <!-- RELATIVE file path -->
+  <xs:simpleType name="t_unix_relfilepath">
+    <xs:restriction base="xs:string">
+      <xs:pattern value="\s*[^/]+([^/]*)+[^/]\s*"/>
+      <xs:whiteSpace value="collapse"/>
+    </xs:restriction>
+  </xs:simpleType>
+
+  <!-- ABSOLUTE path (file or directory) -->
+  <xs:simpleType name="t_unix_path">
+    <xs:union memberTypes="t_unix_dirpath t_unix_filepath"/>
+  </xs:simpleType>
+
+  <!-- RELATIVE path (file or directory) -->
+  <xs:simpleType name="t_unix_relpath">
+    <xs:union memberTypes="t_unix_reldirpath t_unix_relfilepath"/>
+  </xs:simpleType>
+
+  <!-- ANY valid value for the above types. -->
+  <xs:simpleType name="t_unix_anypath">
+    <xs:union memberTypes="t_unix_path t_unix_relpath"/>
+  </xs:simpleType>
+
+  <!-- RELATIVE or ABSOLUTE file path -->
+  <xs:simpleType name="t_unix_anyfile">
+    <xs:union memberTypes="t_unix_filepath t_unix_relfilepath"/>
+  </xs:simpleType>
+
+    <!-- RELATIVE or ABSOLUTE dir path -->
+  <xs:simpleType name="t_unix_anydir">
+    <xs:union memberTypes="t_unix_dirpath t_unix_reldirpath"/>
+  </xs:simpleType>
+  <!-- END of regex silliness. What an ugly annoyance. -->
+
   <xs:complexType name="t_unix_nixpass">
     <xs:choice minOccurs="1" maxOccurs="1">
       <xs:element name="passwordPlain">
diff --git a/schema/projects/ipxe/build.xsd b/schema/projects/ipxe/build.xsd
new file mode 100644
index 0000000..10f6816
--- /dev/null
+++ b/schema/projects/ipxe/build.xsd
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<xs:schema targetNamespace="https://router.r00t2.io/boootbox/ipxe/build/"
+           xmlns="https://router.r00t2.io/boootbox/ipxe/build/"
+           xmlns:ipxe="https://router.r00t2.io/boootbox/ipxe/build/"
+           xmlns:xs="http://www.w3.org/2001/XMLSchema"
+           elementFormDefault="qualified"
+           attributeFormDefault="unqualified">
+
+  <xs:include schemaLocation="../../lib/types/unix.xsd"/>
+  <xs:include schemaLocation="../../lib/types/ipxe.xsd"/>
+  <xs:include schemaLocation="../../lib/elements/ipxe.xsd"/>
+
+  <xs:element name="ipxe">
+    <xs:complexType>
+      <xs:all minOccurs="1">
+        <xs:element name="patchSet">
+          <xs:complexType>
+            <xs:sequence minOccurs="1" maxOccurs="2">
+              <xs:element name="switchOpts" maxOccurs="1" type="e_ipxe_optswitch"/>
+              <xs:element name="patch" maxOccurs="1" type="e_ipxe_patch"/>
+            </xs:sequence>
+            <xs:attribute name="root" type="t_unix_dirpath" use="optional"/>
+          </xs:complexType>
+        </xs:element>
+      </xs:all>
+    </xs:complexType>
+  </xs:element>
+
+</xs:schema>