diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 18342082..32ddc4c4 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -3,10 +3,13 @@ Don't hesitate to open an issue if you have trouble.
 
 ### Setup Dev Environment
 
+Canonically this package uses Node 18 and `pnpm` as a package manager.
+If you are a [Nix](https://nixos.org/) user, there is a `shell.nix` file in the project root.
+
 Clone the repository and run
 
 ```
-npm install
+pnpm install
 ```
 
 We use a locally served version of the [demo page](https://vue-qrcode-reader.netlify.app/) during development. 
@@ -20,4 +23,3 @@ npm run docs:dev
 
 The version number of releases is automatically determined form commit messages. 
 This only works if we follow [Angular Commit Message Conventions](https://github.com/semantic-release/semantic-release#commit-message-format).
-