diff --git a/.tool-versions b/.tool-versions
new file mode 100644
index 0000000..1cfcb49
--- /dev/null
+++ b/.tool-versions
@@ -0,0 +1,2 @@
+elixir 1.13.3-otp-24
+erlang 24.2.1
diff --git a/readme.md b/readme.md
index 96f752a..b4728a0 100644
--- a/readme.md
+++ b/readme.md
@@ -17,8 +17,7 @@ mix escript.install github livebook-dev/livebook
 git clone https://git.lyte.dev/lytedev/ranch-talk.git
 mix do deps.get, compile
 env LIVEBOOK_PORT=5588 LIVEBOOK_IFRAME_PORT=5589 \
-  livebook server --name ranch_is_neat@localhost --cookie yes-please \
-  --default-runtime attached:ranch_is_neat@localhost:yes-please \
+  livebook server --default-runtime mix \
   "$(pwd)/ranch-talk.livemd"
 ```