Create monorepo using pnpm

.gitignore

@@ -25,5 +25,5 @@ dist-ssr
 
 *.gitignored.*
 
-server/.env
-server/*.local
+packages/api/.env
+packages/api/*.local

.prettierignore

@@ -0,0 +1 @@
+pnpm*.yaml

README.md

@@ -2,28 +2,69 @@
 
 Interactive notebooks for JavaScript.
 
-## Repo architecture
+## Setup
 
-The repository is split between client code (found at the root level) and server code, found under [/server](/server).
+- Node 22+
+- pnpm 9+
 
 ## Development
 
-First, run the server:
+To run the app, you'll need to start both the API and Web servers.
 
+Run the API:
+
+```shell
+pnpm run dev-api
+```
+
+Run the Web server:
+
+```shell
+pnpm run dev-web
+```
+
+Then visit http://localhost:5173
+
+## Running pnpm scripts
+
+Same as NPM, check top-level package.json for scripts.
+
+```shell
+pnpm run lint-web
 ```
-$ cd server/
-$ npm i
-$ npm run dev
+
+To run a script defined in one of the packages:
+
+```shell
+pnpm --filter api typecheck
 ```
 
-Then, run the client:
+## Adding a dependency
+
+To add a dependency from npm registry:
 
+```shell
+# Add npm dependency to the API package
+pnpm add <dep> --filter api
+
+# Add npm dev dependency to the API package
+pnpm add -D <dep> --filter api
 ```
-$ # from root of repository
-$ npm i
-$ npm run dev
+
+To add a dependency from within the workspace:
+
+```shell
+# Add the shared package to the API package.
+pnpm add @srcbook/shared --workspace --filter api
+
+# Add the shared package as a dev dependency to the API package.
+pnpm add -D @srcbook/shared --workspace --filter api
 ```
 
+To remove a package, use `remove` instead of `add` in the commands above.
+
+## Env
+
 You can pass the following env variables:
 
 - `SRC_BOOK_CONFIG_DIR`: this is the directory where the local config.json will live