diff --git a/roles/desktop/files/portage/env/j1.conf b/roles/desktop/files/portage/env/j1.conf
new file mode 100644
index 0000000..80eb237
--- /dev/null
+++ b/roles/desktop/files/portage/env/j1.conf
@@ -0,0 +1,3 @@
+# vim:ft=bash
+MAKEOPTS="-j1"
+NINJAFLAGS="-j1"
diff --git a/roles/desktop/files/portage/env/j2.conf b/roles/desktop/files/portage/env/j2.conf
new file mode 100644
index 0000000..ae26887
--- /dev/null
+++ b/roles/desktop/files/portage/env/j2.conf
@@ -0,0 +1,3 @@
+# vim:ft=bash
+MAKEOPTS="-j2"
+NINJAFLAGS="-j2"
diff --git a/roles/desktop/files/portage/package.env/net-libs b/roles/desktop/files/portage/package.env/net-libs
new file mode 100644
index 0000000..17337d7
--- /dev/null
+++ b/roles/desktop/files/portage/package.env/net-libs
@@ -0,0 +1 @@
+net-libs/webkit-gtk j2.conf
diff --git a/roles/desktop/files/portage/package.env/www-client b/roles/desktop/files/portage/package.env/www-client
new file mode 100644
index 0000000..f50599d
--- /dev/null
+++ b/roles/desktop/files/portage/package.env/www-client
@@ -0,0 +1,2 @@
+www-client/chromium j2.conf
+www-client/firefox j2.conf