diff --git a/.gitignore b/.gitignore
index d6333c759..d67a60732 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,8 @@ node_modules
 api.json
 /_site
 .sass-cache*
+.arcconfig
+.arclint
+electron
+internal_packages
+arclib
diff --git a/.ruby-gemset b/.ruby-gemset
new file mode 100644
index 000000000..9dcf038c2
--- /dev/null
+++ b/.ruby-gemset
@@ -0,0 +1 @@
+N1
diff --git a/.ruby-version b/.ruby-version
new file mode 100644
index 000000000..8274681f8
--- /dev/null
+++ b/.ruby-version
@@ -0,0 +1 @@
+ruby-2.2.3