diff --git a/roles/devserver/userland-software/files/ast.ini b/roles/devserver/userland-software/files/ast.ini
new file mode 100644
index 0000000..18d10b7
--- /dev/null
+++ b/roles/devserver/userland-software/files/ast.ini
@@ -0,0 +1,16 @@
+;   -------------------------------------------------------------
+;   PHP configuration
+;   - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+;   Project:        Nasqueron
+;   License:        Trivial work, not eligible to copyright
+;   Source file:    roles/devserver/userland-software/files/ast.ini
+;   -------------------------------------------------------------
+;
+;   <auto-generated>
+;       This file is managed by our rOPS SaltStack repository.
+;
+;       Changes to this file may cause incorrect behavior
+;       and will be lost if the state is redeployed.
+;   </auto-generated>
+
+extension=ast.so
diff --git a/roles/devserver/userland-software/files/install-php-extension.sh b/roles/devserver/userland-software/files/install-php-extension.sh
new file mode 100644
index 0000000..426e97b
--- /dev/null
+++ b/roles/devserver/userland-software/files/install-php-extension.sh
@@ -0,0 +1,15 @@
+#!/bin/sh
+
+#   -------------------------------------------------------------
+#   Intall PHP extension
+#   - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+#   Project:        Nasqueron
+#   Author:         Sébastien Santoro aka Dereckson
+#   Created:        2018-03-29
+#   License:        BSD-2-Clause
+#   Source file:    roles/devserver/userland-software/files/install-php-extension.sh
+#   -------------------------------------------------------------
+
+phpize
+./configure
+make
diff --git a/roles/devserver/userland-software/init.sls b/roles/devserver/userland-software/init.sls
index a9b4267..72b833b 100644
--- a/roles/devserver/userland-software/init.sls
+++ b/roles/devserver/userland-software/init.sls
@@ -1,22 +1,23 @@
 #   -------------------------------------------------------------
 #   Salt — Provision software
 #   - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 #   Project:        Nasqueron
 #   Created:        2017-10-20
 #   License:        Trivial work, not eligible to copyright
 #   -------------------------------------------------------------
 
 include:
   # Shell server content
   - roles/shellserver/userland-software/base
   - roles/shellserver/userland-software/irc
   - roles/shellserver/userland-software/web
   # Builder role content
   - roles/builder
   # Software specific for development servers
   - .dev
   - .misc
   - .notifications
   - .phabricator
+  . .php-ast
   - .psysh
   - .wordpress
diff --git a/roles/devserver/userland-software/map.jinja b/roles/devserver/userland-software/map.jinja
new file mode 100644
index 0000000..7dbf0be
--- /dev/null
+++ b/roles/devserver/userland-software/map.jinja
@@ -0,0 +1,20 @@
+#   -------------------------------------------------------------
+#   Salt — Provision dev software
+#   - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+#   Project:        Nasqueron
+#   Created:        2018-03-29
+#   License:        Trivial work, not eligible to copyright
+#   -------------------------------------------------------------
+
+{% set php = salt['grains.filter_by']({
+    'Debian': {
+        'current_api': '20170718',
+        'extension_dir': '/usr/lib/php/20170718',
+        'cli_conf_dir': '/etc/php/7.2/cli/conf.d/',
+    },
+    'FreeBSD' : {
+        'current_api': '20170718',
+        'extension_dir': '/usr/local/lib/php/20170718',
+        'cli_conf_dir': '/usr/local/etc/php/',
+    },
+}, default='Debian') %}
diff --git a/roles/devserver/userland-software/php-ast.sls b/roles/devserver/userland-software/php-ast.sls
new file mode 100644
index 0000000..ee322e1
--- /dev/null
+++ b/roles/devserver/userland-software/php-ast.sls
@@ -0,0 +1,48 @@
+#   -------------------------------------------------------------
+#   Salt — Provision dev software
+#   - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+#   Project:        Nasqueron
+#   Created:        2018-03-29
+#   License:        Trivial work, not eligible to copyright
+#   -------------------------------------------------------------
+
+{% from "roles/devserver/userland-software/map.jinja" import php with context %}
+
+#   -------------------------------------------------------------
+#   Fetch software
+#   - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+
+/opt/php-ast:
+  file.directory:
+    - user: builder
+
+php_ast_repository:
+  git.latest:
+    - name: https://github.com/nikic/php-ast.git
+    - target: /opt/php-ast
+    - user: builder
+
+#   -------------------------------------------------------------
+#   Build software
+#   - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+
+php_ast_build:
+  cmd.script:
+    - source: salt://roles/devserver/userland-software/files/install-php-extension.sh
+    - cwd: /opt/php-ast
+    - runas: builder
+    - creates: /opt/php-ast/modules/ast.so
+
+php_ast_install:
+  cmd.run:
+    - name: make install
+    - cwd: /opt/php-ast
+    - creates: {{ php.extension_dir }}/ast.so
+
+#   -------------------------------------------------------------
+#   PHP configuration
+#   - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+
+{{ php.cli_conf_dir }}/ext-40-ast.ini:
+  file.managed:
+    - source: salt://roles/devserver/userland-software/files/ast.ini