new file mode 100755
--- /dev/null
+++ b/.homedir-setup.sh
@@ -0,0 +1,44 @@
+#!/bin/sh
+
+set -eu
+
+if ! git --version >/dev/null; then
+  echo "Please install git!"
+  exit 1
+fi
+
+pull () {
+  echo "$1:"
+  git -C $1 pull --no-tags
+}
+
+if ! [ -d .zgen ]; then
+  git clone https://github.com/tarjoilija/zgen.git .zgen
+else
+  pull .zgen
+fi
+
+if ! [ -d .plenv ]; then
+  git clone https://github.com/tokuhirom/plenv.git .plenv
+  git clone https://github.com/tokuhirom/Perl-Build.git .plenv/plugins/perl-build/
+else
+  pull .plenv
+  pull .plenv/plugins/perl-build
+fi
+
+if ! [ -d .rbenv ]; then
+  git clone https://github.com/sstephenson/rbenv.git .rbenv
+  git clone https://github.com/sstephenson/ruby-build.git .rbenv/plugins/ruby-build/
+else
+  pull .rbenv
+  pull .rbenv/plugins/ruby-build
+fi
+
+if ! [ -d .ndenv ]; then
+  git clone https://github.com/riywo/ndenv.git .ndenv
+  git clone https://github.com/riywo/node-build.git .ndenv/plugins/node-build
+else
+  pull .ndenv
+  pull .ndenv/plugins/node-build
+fi
+