direnv: Set up NVM helper

direnv/direnvrc

@@ -57,3 +57,13 @@ read_version_file()
   watch_file "${file}"
   ruby -e "puts ARGF.readline" 2> /dev/null "${file}"
 }
+
+# From https://github.com/direnv/direnv/wiki/Node#using-nvm
+use_nvm() {
+  local node_version=$1
+
+  nvm_sh="${NVM_DIR}/nvm.sh"
+  source $nvm_sh
+  nvm install $node_version
+  nvm use $node_version
+}

zsh/.zshenv

@@ -21,3 +21,5 @@ export LOCAL_SESSION
 export SHELL=$(which zsh)
 
 export FZF_DEFAULT_COMMAND='fd'
+
+export NVM_DIR="${HOME}/.nvm"