tagspaces aur nvm patch

diff --git a/PKGBUILD b/PKGBUILD
index 8884100..e30b0ff 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -4,12 +4,13 @@ pkgname=tagspaces
 pkgver=6.0.2
 pkgrel=1
 _electronversion=32
+_nodeversion=20
 pkgdesc="An offline, open source, document manager with tagging support"
 arch=('x86_64')
 url="https://www.tagspaces.org"
 license=('AGPL-3.0-or-later')
 depends=("electron${_electronversion}" 'libnotify' 'libsecret' 'xdg-utils')
-makedepends=('git' 'libxcrypt-compat' 'npm')
+makedepends=('git' 'libxcrypt-compat' 'npm' 'nvm')
 source=("$pkgname-$pkgver.tar.gz::https://github.com/tagspaces/tagspaces/archive/refs/tags/v$pkgver.tar.gz"
         "$pkgname.desktop"
         "$pkgname.sh")
@@ -17,10 +18,19 @@ sha256sums=('3107087d5dbf70a957bd27a75ce7bf4550423bec6df6c3503c305155fef5a7d0'
             'a548e2b62a61a93d80482ebe43ef11e33e2c2bfef9db641fc583bd5539ac6948'
             '6a0d3ca0f31afdd7587b3dc0ed819f252c350eaeafb17472fe4b7031d4130118')

+_ensure_local_nvm() {
+  local NVM_DIR="${srcdir}/.nvm"
+  source /usr/share/nvm/init-nvm.sh || [[ $? != 1 ]]
+  nvm install "${_nodeversion}"
+  nvm use "${_nodeversion}"
+}
+
 prepare() {
   cd "$pkgname-$pkgver"
   export npm_config_cache="$srcdir/npm_cache"

+  _ensure_local_nvm
+
   # Modify build target
   sed -i 's/"deb", "tar.gz", "appImage"/"deb"/g' resources/builder.json

@@ -46,6 +56,9 @@ build() {
   electronDist="/usr/lib/electron${_electronversion}"
   electronVer="$(sed s/^v// /usr/lib/electron${_electronversion}/version)"
   export ELECTRON_SKIP_BINARY_DOWNLOAD=1
+
+  _ensure_local_nvm
+
   npm run install-ext-node-linux
   npm exec -c "ts-node ./.erb/scripts/clean.js"
   npm run build