Update building-zed.md

Co-Authored-By: Derek Briggs <1648941+PixelJanitor@users.noreply.github.com>

docs/building-zed.md

@@ -4,6 +4,11 @@
 
 How to build Zed from source for the first time.
 
+## Prerequisites
+
+- Be added to the GitHub organization
+- Be added to the Vercel team
+
 ## Process
 
 Expect this to take 30min to an hour! Some of these steps will take quite a while based on your connection speed, and how long your first build will be.
@@ -13,11 +18,17 @@ Expect this to take 30min to an hour! Some of these steps will take quite a whil
 1. Clone the `zed` repo
    - `gh repo clone zed-industries/zed`
 1. Install Xcode from the macOS App Store
+1. Install Xcode command line tools
+   - `xcode-select --install`
+   - If xcode-select --print-path prints /Library/Developer/CommandLineTools… run `sudo xcode-select --switch /Applications/Xcode.app/Contents/Developer.`
 1. Install [Postgres](https://postgresapp.com)
 1. Install rust/rustup
    - `curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh`
 1. Install the wasm toolchain
    - `rustup target add wasm32-wasi`
+1. Install Livekit & Foreman
+   - `brew install livekit`
+   - `brew install foreman`
 1. Generate an GitHub API Key
    - Go to https://github.com/settings/tokens and Generate new token
    - GitHub currently provides two kinds of tokens:
@@ -25,12 +36,26 @@ Expect this to take 30min to an hour! Some of these steps will take quite a whil
        Unfortunately, unselecting `repo` scope and selecting every its inner scope instead does not allow the token users to read from private repositories
      - (not applicable) Fine-grained Tokens, at the moment of writing, did not allow any kind of access of non-owned private repos
    - Keep the token in the browser tab/editor for the next two steps
+1. (Optional but reccomended) Add your GITHUB_TOKEN to your `.zshrc` or `.bashrc` like this: `export GITHUB_TOKEN=yourGithubAPIToken`
+1. Ensure the Zed.dev website is checked out in a sibling directory and install it's dependencies:
+    ```
+    cd ..
+    git clone https://github.com/zed-industries/zed.dev
+    cd zed.dev && npm install
+    npm install -g vercel
+    ```
+1. Link your zed.dev project to Vercel
+    - `vercel link`
+    - Select the `zed-industries` team. If you don't have this get someone on the team to add you to it.
+    - Select the `zed.dev` project
+1. Run `vercel pull` to pull down the environment variables and project info from Vercel
 1. Open Postgres.app
 1. From `./path/to/zed/`:
-   - Run:
-     - `GITHUB_TOKEN={yourGithubAPIToken} script/bootstrap`
-     - Replace `{yourGithubAPIToken}` with the API token you generated above.
-   - Consider removing the token (if it's fine for you to crecreate such tokens during occasional migrations) or store this token somewhere safe (like your Zed 1Password vault).
+    - Run:
+        - `GITHUB_TOKEN={yourGithubAPIToken} script/bootstrap`
+        - Replace `{yourGithubAPIToken}` with the API token you generated above.
+        - You don't need to include the GITHUB_TOKEN if you exported it above.
+    - Consider removing the token (if it's fine for you to recreate such tokens during occasional migrations) or store this token somewhere safe (like your Zed 1Password vault).
    - If you get:
      - ```bash
        Error: Cannot install in Homebrew on ARM processor in Intel default prefix (/usr/local)!
@@ -51,6 +76,7 @@ Expect this to take 30min to an hour! Some of these steps will take quite a whil
       - `cargo run --release`
     - If you need to run the collaboration server locally:
       - `script/zed-with-local-servers`
+    - If you need to test collaboration with mutl
 
 ## Troubleshooting