Lukas Stracke at Svelte Summit 2025
Picture taken at Svelte Summit 2025 by Ermeen.

Sometimes, I overcome my fear of public speaking and give talks about svelte, observability or testing.


Tracing the Slowdown: OpenTelemetry in SvelteKit made easy @ Svelte Summit 05/2025

Talk at the Svelte Summit conference about the challenges of adding OpenTelemetry tracing to SvelteKit applications. Also presented a solution to simplify observability in SvelteKit in front of the Svelte team.

Astro for Svelte Developers @ Svienna 12/2024

A talk about when to use Astro or SvelteKit for your next project. Unfortunately, the recording was lost.

Mutation Testing: Testing your Tests @ ViennaJS 10/2024

Meetup Talk at ViennaJS about Mutation Testing and how to use it in JavaScript. Also shared my experience of using it in the Sentry JS SDK codebase.

Shining a Spotlight on 3rd Party Widgets @ React Amsterdam 02/2024

Meetup Talk at React Amsterdam about the Shadow DOM API and how we used it to isolate Spotlight's Overlay from the host page.

Building an Application Monitoring SDK for SvelteKit @ Svienna 01/2024

Meetup talk how I built Sentry's SvelteKit SDK. I shared insights into specific challenges as well as a lot of details on the inner workings of SvelteKit.

Know your Components @ VueConf 2022

Lightning Talk on how investigating the lifecycle of Vue components helps identify and resolve performance issues.