diff --git a/zsh/.oh-my-zsh/custom/docker.zsh b/zsh/.oh-my-zsh/custom/docker.zsh
new file mode 100644
index 0000000..9ed56d6
--- /dev/null
+++ b/zsh/.oh-my-zsh/custom/docker.zsh
@@ -0,0 +1 @@
+alias docker='sudo docker'
diff --git a/zsh/.oh-my-zsh/custom/ruby.zsh b/zsh/.oh-my-zsh/custom/ruby.zsh
new file mode 100644
index 0000000..43d4500
--- /dev/null
+++ b/zsh/.oh-my-zsh/custom/ruby.zsh
@@ -0,0 +1 @@
+export PATH="$PATH:$(ruby -rubygems -e "puts Gem.user_dir")/bin"