diff --git a/schema/lib/types/aif.xsd b/schema/lib/types/aif.xsd
index dbf86a8..f7fe395 100644
--- a/schema/lib/types/aif.xsd
+++ b/schema/lib/types/aif.xsd
@@ -10,7 +10,7 @@
     <xs:include schemaLocation="./unix.xsd"/>
     <xs:include schemaLocation="../elements/linux.xsd"/>
 
-        <xs:simpleType name="t_aif_auto_ip6">
+    <xs:simpleType name="t_aif_auto_ip6">
         <xs:union memberTypes="t_net_auto_ip6">
             <xs:simpleType>
                 <xs:restriction base="xs:string">
diff --git a/schema/lib/types/net.xsd b/schema/lib/types/net.xsd
index fda9ead..7806d85 100644
--- a/schema/lib/types/net.xsd
+++ b/schema/lib/types/net.xsd
@@ -89,6 +89,15 @@
             </xs:extension>
         </xs:simpleContent>
     </xs:complexType>
+    
+    <xs:complexType name="t_net_http_basic_uri">
+        <xs:simpleContent>
+            <xs:restriction base="xs:anyURI">
+                <xs:pattern value="https?://.+/?"/>
+                <xs:whiteSpace value="collapse"/>
+            </xs:restriction>
+        </xs:simpleContent>
+    </xs:complexType>
 
     <xs:simpleType name="t_net_mac_addr">
         <xs:restriction base="xs:token">
diff --git a/schema/lib/types/std.xsd b/schema/lib/types/std.xsd
index 07aca0f..cc07cdd 100644
--- a/schema/lib/types/std.xsd
+++ b/schema/lib/types/std.xsd
@@ -9,6 +9,14 @@
             <xs:whiteSpace value="collapse"/>
         </xs:restriction>
     </xs:simpleType>
+    
+    <xs:complexType name="t_std_base64">
+        <xs:simpleContent>
+            <xs:restriction base="xs:token">
+                <xs:pattern value="[A-Za-z0-9+/=]+"/>
+            </xs:restriction>
+        </xs:simpleContent>
+    </xs:complexType>
 
     <xs:complexType name="t_std_cmdopts">
         <xs:simpleContent>
@@ -18,6 +26,13 @@
         </xs:simpleContent>
     </xs:complexType>
 
+    <xs:simpleType name="t_std_envvar">
+        <xs:restriction base="xs:token">
+            <xs:pattern value="env:[A-Za-z_]+[A-Za-z0-9_]*"/>
+            <xs:whiteSpace value="collapse"/>
+        </xs:restriction>
+    </xs:simpleType>
+
     <xs:simpleType name="t_std_epoch_or_iso">
         <!-- positiveInteger is used for UNIX Epoch. -->
         <xs:union memberTypes="xs:dateTime xs:positiveInteger"/>
diff --git a/schema/lib/types/unix.xsd b/schema/lib/types/unix.xsd
index c1d8896..71bfc83 100644
--- a/schema/lib/types/unix.xsd
+++ b/schema/lib/types/unix.xsd
@@ -7,7 +7,7 @@
 
     <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>
diff --git a/schema/lib/types/vaultpass.xsd b/schema/lib/types/vaultpass.xsd
new file mode 100644
index 0000000..fd2a4c0
--- /dev/null
+++ b/schema/lib/types/vaultpass.xsd
@@ -0,0 +1,94 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
+           elementFormDefault="qualified"
+           attributeFormDefault="unqualified">
+
+    <xs:include schemaLocation="./net.xsd"/>
+    <xs:include schemaLocation="./std.xsd"/>
+    <xs:include schemaLocation="./unix.xsd"/>
+
+    <xs:complexType name="t_vaultpass_auth">
+        <xs:choice minOccurs="1" maxOccurs="1">
+            <xs:element name="appRole">
+                <xs:complexType>
+                    <xs:all>
+                        <xs:element name="role" type="xs:token" minOccurs="1" maxOccurs="1"/>
+                        <xs:element name="secret" type="xs:token" minOccurs="1" maxOccurs="1"/>
+                    </xs:all>
+                </xs:complexType>
+            </xs:element>
+            <!-- We don't support Boto3 because it requires an external session object. -->
+            <!-- We won't support EC2 Metadata auth unless requested because it's HELL complex. -->
+            <!-- TODO -->
+            <!--
+            <xs:element name="aws">
+                <xs:complexType>
+                    <xs:choice minOccurs="1" maxOccurs="1">
+                        <xs:element name="iam">
+                            <xs:complexType>
+                                <xs:choice minOccurs="1" maxOccurs="1">
+                                    <xs:element name="iamKey">
+                                        <xs:complexType>
+                                            <xs:all>
+                                                <xs:element name="keyID" type="xs:token" minOccurs="1" maxOccurs="1"/>
+                                                <xs:element name="key" type="xs:token" minOccurs="1" maxOccurs="1"/>
+                                                <xs:element name="sessionToken" type="xs:token" minOccurs="0"
+                                                            maxOccurs="1"/>
+                                            </xs:all>
+                                        </xs:complexType>
+                                    </xs:element>
+                                    <xs:element name="iamMetadata">
+                                        <xs:complexType>
+                                            <xs:all>
+                                                <xs:element name="urlBase" type="t_net_http_basic_uri" minOccurs="1"
+                                                            maxOccurs="1"/>
+                                                <xs:element name="role" type="xs:token" minOccurs="1" maxOccurs="1"/>
+                                            </xs:all>
+                                        </xs:complexType>
+                                    </xs:element>
+                                </xs:choice>
+                            </xs:complexType>
+                        </xs:element>
+                    </xs:choice>
+                </xs:complexType>
+            </xs:element>
+            -->
+            <!-- TODO: if popularly requested.
+                       They're pretty complex/messy and/or require extra configuration in Vault. -->
+            <!--
+            <xs:element name="azure"/>
+            <xs:element name="gcp"/>
+            <xs:element name="github"/>
+            <xs:element name="kubernetes"/>
+            -->
+            <!-- Requires extra configuration but it's probably pretty common, so I'll enable it. -->
+            <xs:element name="ldap">
+                <xs:complexType>
+                    <xs:all>
+                        <xs:element name="username" type="xs:token" minOccurs="1" maxOccurs="1"/>
+                        <xs:element name="password" type="xs:token" minOccurs="1" maxOccurs="1"/>
+                        <xs:element name="mountPoint" type="xs:token" minOccurs="0" maxOccurs="1" default="ldap"/>
+                    </xs:all>
+                </xs:complexType>
+            </xs:element>
+            <!-- No longer supported upstream by HashiCorp. -->
+            <!--
+            <xs:element name="mfa"/>
+            -->
+            <!-- TODO: if popularly requested. -->
+            <!--
+            <xs:element name="okta"/>
+            -->
+            <xs:element name="token">
+                <xs:complexType>
+                    <xs:attribute name="source" type="t_vaultpass_tokensource" use="optional"/>
+                </xs:complexType>
+            </xs:element>
+        </xs:choice>
+    </xs:complexType>
+    
+    <xs:simpleType name="t_vaultpass_tokensource">
+        <xs:union memberTypes="t_std_envvar t_unix_filepath xs:token"/>
+    </xs:simpleType>
+
+</xs:schema>
diff --git a/schema/projects/aif.xsd b/schema/projects/aif.xsd
index bbd5c1e..fe26dc1 100644
--- a/schema/projects/aif.xsd
+++ b/schema/projects/aif.xsd
@@ -270,7 +270,7 @@
                     <xs:complexType>
                         <xs:attribute name="type" type="t_aif_bootloaders" use="required"/>
                         <xs:attribute name="target" type="t_std_nonempty" use="required"/>
-                        <xs:attribute name="efi" type="xs:boolean" use="optional" default="1"/>
+                        <xs:attribute name="efi" type="xs:boolean" use="optional" default="true"/>
                     </xs:complexType>
                 </xs:element>
                 <!-- END BOOTLOADER -->
diff --git a/schema/projects/vaultpass.xsd b/schema/projects/vaultpass.xsd
new file mode 100644
index 0000000..f08b38e
--- /dev/null
+++ b/schema/projects/vaultpass.xsd
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<xs:schema targetNamespace="https://git.square-r00t.net/VaultPass/"
+           xmlns="https://git.square-r00t.net/VaultPass/"
+           xmlns:vaultpass="https://git.square-r00t.net/VaultPass/"
+           xmlns:xs="http://www.w3.org/2001/XMLSchema"
+           elementFormDefault="qualified"
+           attributeFormDefault="unqualified">
+
+    <xs:include schemaLocation="../lib/types/vaultpass.xsd"/>
+
+    <!-- ROOT -->
+    <xs:element name="vaultpass">
+        <xs:complexType>
+            <xs:all>
+                <xs:element name="uri" type="t_std_uri" minOccurs="0" maxOccurs="1" default="http://localhost:8000/"/>
+                <xs:element name="auth" type="t_vaultpass_auth"/>
+            </xs:all>
+            <xs:attribute name="autoUnseal" type="xs:boolean" use="optional" default="false"/>
+            <xs:attribute name="unsealShard" type="t_std_base64" use="optional"/>
+        </xs:complexType>
+    </xs:element>
+</xs:schema>