Update

config/direnv/direnvrc

@@ -7,3 +7,13 @@ use_ruby() {
 check_env() {
   local ret=0; for var in "$@"; do [[ -v $var ]] || { echo "$var is missing"; ret=1; }; done; return $ret;
 }
+
+use_nvm() {
+  local node_version=$1
+
+  nvm_sh=~/.config/nvm/nvm.sh
+  if [[ -e $nvm_sh ]]; then
+    source $nvm_sh
+    nvm use $node_version
+  fi
+}