diff --git a/bld/linux.py b/bld/linux.py
new file mode 100644
index 00000000000..767f088a6dc
--- /dev/null
+++ b/bld/linux.py
@@ -0,0 +1,8 @@
+config = {
+    'mock_target': 'mozilla-centos6-x86_64',
+    'mock_packages': ['freetype-devel', 'fontconfig-devel', 'glib2-devel', 'autoconf213', 'git', 'make', 'libX11-devel', 'mesa-libGL-devel', 'freeglut-devel',
+                      'xorg-x11-server-devel', 'libXrandr-devel', 'libXi-devel', 'libpng-devel'],
+    'mock_files': [('/home/servobld/.ssh', '/home/mock_mozilla/.ssh')],
+    'concurrency': 6,
+    'add_actions': ['setup-mock'],
+}
diff --git a/bld/mac.py b/bld/mac.py
new file mode 100644
index 00000000000..c97f935bce2
--- /dev/null
+++ b/bld/mac.py
@@ -0,0 +1,3 @@
+config = {
+    'concurrency': 6,
+}