Update demo instructions

README.md

@@ -22,17 +22,16 @@ To start the demo server: `yarn dev:server`
 
 ### Setting up a demo
 
-*Note*: As of writing, there is no server-server API this thing can talk to, unfortunately.
-
-1. `yarn dev:server` to start the server. This will block until killed.
-2. In a new terminal window, `yarn dev:client:nobuild`. This will also block until killed.
-3. In a third terminal, `yarn dev:client:nobuild`.
-4. Grab the auto-assigned user ID from the third terminal and put it on your clipboard.
-5. In the second terminal window (first client), type `/createRoom` and press <kbd>Enter</kbd>.
-6. You should now have a room that you're chatting in.
-7. Type `/invite <the other user ID>` and press <kbd>Enter</kbd>.
-8. In the third terminal (second client), follow the instructions to accept the invite.
-9. Send whatever text you like in either client and it should be received on the other end.
+1. `LM_PORT=3000 LM_SIGNING_KEY_PATH=./p3000.signing.key yarn dev:server` to start the server. This will block until killed.
+2. `LM_PORT=3001 LM_SIGNING_KEY_PATH=./p3001.signing.key yarn dev:server` to start the second server in a new terminal window.
+3. In a new terminal window, `LM_PORT=3000 yarn dev:client:nobuild`. This will also block until killed.
+4. In a fourth terminal window, `LM_PORT=3001 yarn dev:client:nobuild` to start the second client.
+5. Grab the auto-assigned user ID from the fourth terminal and put it on your clipboard.
+6. In the third terminal window (first client), type `/createRoom` and press <kbd>Enter</kbd>.
+7. You should now have a room that you're chatting in.
+8. Type `/invite <the other user ID>` and press <kbd>Enter</kbd>.
+9. In the fourth terminal (second client), follow the instructions to accept the invite.
+10. Send whatever text you like in either client and it should be received on the other end. This will be going over local federation.
 
 Some additional notes:
 * The terminal client doesn't support backspace. Just "send" the typo and it'll be fine.