Vercel Analytics is a service tracking your website's real-world performance and is available for free if you're deploying on Vercel. This post explains how to use the service with Svelte(Kit) as there is no official support (yet).
Streams are a powerful way to propagate updates throughout an application. This post explains how to create a stream from every event of an input stream without leaving any dangling subscriptions.
A quick guide on simple port-forwarding using NAT and DNAT in iptables