chore: Use Volta and update to pnpm 9

README.md

@@ -17,6 +17,12 @@ For details on running or adding new examples, see the `docs/examples.md` file.
 
 Contributions are welcome! We're currently breaking apart the Scattebrain component into smaller, more manageable packages. If you have a package that you think would be useful to others, please open a PR.
 
+# Installation for Development
+
+This project uses [Node.js](https://nodejs.org) and [pnpm](https://pnpm.io/). We use [Volta](https://volta.sh/) to manage the versions of each. If you're not using Volta, check the "volta" key in the root `package.json` for the Node and pnpm versions we're using when developing.
+
+Volta has experimental support for pnpm, so [follow the steps on their docs](https://docs.volta.sh/advanced/pnpm) to get it enabled.
+
 # Using the Libraries
 
 See the `docs/using-packages.md` file for information on how to use the packages in your own projects.

package.json

@@ -17,5 +17,9 @@
         "prettier": "3.3.2",
         "process": "^0.11.10",
         "typescript": "^5.3.3"
+    },
+    "volta": {
+        "node": "22.11.0",
+        "pnpm": "9.14.2"
     }
 }