vue-devtools/packages/docs/src/devtools-vue3.md

How to Setup Vue DevTools for Vue 3

Local Development

# Clone repo
git clone git@github.com:vuejs/vue-devtools.git

# Change into devtools directory
cd vue-devtools

# Checkout next branch
git checkout next

# Install dependencies
yarn

# Build TypeScript dependencies
yarn build:watch

# Start local environment
yarn dev:shell-vue3

Once everything is setup, you should be able to visit http://localhost:8090/