Try to work around #17.

.github/workflows/build.yml

@@ -47,11 +47,16 @@ jobs:
  uses: actions/[email protected]
  with:
  node-version-file: sup/vscode/package.json
- # TODO: Remove this hack when `code` is made optional.
- - name: Workaround for issue 6
+ # TODO: Remove this hack.
+ - name: Workarounds for issues 6 and 17
  run: |
  mkdir hack
+
  touch hack/code
+ touch hack/code.exe
+
+ ln -s "$(which npm.cmd)" hack/npm.exe
+
  echo "$PWD/hack" >> $GITHUB_PATH
  - name: Check source code and documentation
  run: |