For this guide, we’ll use a simple SvelteKit app as an example, but any SvelteKit app should work fine. You can find the complete source code for this example here. To get started, download the latest version of Subtrace using the following command: 
curl -fsSL https://subtrace.dev/install.sh | sh
Then get a SUBTRACE_TOKEN from the Subtrace dashboard for free and set it as an environment variable. 
# get a tracer token for free at https://subtrace.dev/dashboard
export SUBTRACE_TOKEN=
Build and start your server using Subtrace: 
npm install
npm run build
subtrace run -- npm run dev
That’s it! You can now visit localhost:5173 and make requests to the app that show up on the Subtrace dashboard in realtime.