Lukas Stracke
@stracke.tech
SDKs at @sentry.io Side projecs: henri.live, clifty ✈️Aviation & Flightsim Enthusiast
Love it when boomer parents who bought their houses below 200k in prime locations in AT advise GF and me to never take out loans for buying a house. In a market where the same kind of house costs north of 800k. No such thing as purchasing power decline. Glad I'm paying their pension.
Seeing "contribution farmers" engage more and more with our GH repo, opening slopped PRs just minutes after we open issues. Should we ... disable accepting external PRs? close all without explicit permission? Accept defeat and spend 2x the time reviewing than if we made the change ourselves.
The amount of slop PRs and issues we receive in the Sentry JS SDK repo has increased 10x in the last weeks. Don't even remember reading a human-written issue. Reading and reviewing these is such a pain. I would love to close them all but then fear of missing a legit fix (FOMALF?) strikes.
Nothing annoys me currently more than review bots surfacing only 1-2 findings at a time. I go in, fix them, commit, push. Boom, the next two unrelated findings. I write shitty code. I appreciate the reviews. But don't spoon-feed them to me. I want them all at once.
Did not expect to find Austria in this oddly specific list. Guess that means no new flightsim hardware for me then lol
I've written something for the Sentry Engineering blog again ✨ sentry.engineering/blog/from-mo...
There's better ways than Monkey-Patching: A Path to Node.js Observability with Tracing Channels - Sentry Engineering
What if libraries were active participants in their own observability and emit telemetry data themselves? Here's how Node's diagnostics API can make that a reality.
sentry.engineering
Well if someone has observability powers that's Santa for sure l...but you can know when they are awake too with SvelteKit otel tools. Learn how with today Advent of Svelte with Ben! 🧡 advent.sveltesociety.dev/2025/7
Advent of Svelte
24 days of Svelte challenges to help you learn Svelte 5
advent.sveltesociety.dev
It's always a pleasure to host the @svelte.at meetup. Great talks, nice people and good vibes :) For @sentry.io it also pays off: We often get direct feedback we'd miss otherwise. Like yesterday, about a Svelte 4 and 5 syntax mixup in our SDK setup wizard. github.com/getsentry/se...
fix(sveltekit): Ensure example page works on Svelte 4 and 5 by Lms24 · Pull Request #1129 · getsentry/sentry-wizard
Quick fix after a conversation about our SvelteKit wizard at Svelte Vienna meetup: We previously used a mixture of Svelte 4 and 5 syntax, causing the example page's error button to not work in ...
github.com
Ermeen ✌️@ermeen.com · 11mo agoIt was a blast yesterday at @svelte.at @sveltesociety.dev We had 42 people show up! Thanks @sentry.io and @stracke.tech for hosting. Great talks by @michaelaufreiter.com @danirukun.bsky.social and Housein :)
Last but not least we have a LT from @yuki-ishii.bsky.social, the man who put this fantastic event together! Observability in remote functions with OpenTelemetry & @sentry.io in SvelteKit! Great refresher on @stracke.tech's amazing talk at SvelteSummit
Oh... what's this, you ask? Just a benchmark that coincidentally shows how fast SvelteKit is compared to Next.js 🤷♂️ How fast, you ask? Just 7-10x. No biggie. Svelte ❤️
www.meetup.com/svelte-socie... See you in @sentry.io 👋
2025/12 - Svelte Society Austria, Tue, Dec 2, 2025, 6:00 PM | Meetup
All current or future Sveltists are welcome! Come and enjoy interesting Svelte talks and discussions. ** 📢 Call for speakers is open** Schedule: * Intro * Tal
meetup.com
I'm excited to release the Svelte 5 course aimed at new and existing Svelte developers! 🔥 Learn how to make blazing fast web apps with Svelte and understand how it works with hands-on experience. youtu.be/B2MhkPtBWs4
It's finally out! SvelteKit users: update your Sentry SDK to 10.8.0 or later to get those nice traces. All courtesy of @ell.iott.dev and @svelte.dev. (Please let me know if I broke your app in the process)
SvelteKit observability just got 10x better, and we’re here for it
SvelteKit now supports full observability and tracing, with Sentry SDK compatibility from v10.8.0. See how to set up server-side instrumentation.
blog.sentry.io
Honored & excited! 🎉 Just joined the Svelte maintainers team (cli focus) Big thanks for the peer recognition Let's continue build cool stuff together 🧡 #OSS
Congrats to @gruntled.bsky.social and @svelte.dev for becoming leaders in o11y support in ESM frameworks! Super happy to see what I talked about at Svelte Summit becoming reality. Thanks for letting me help out out a bit along the way! Full @sentry.io support is already WIP and will ship soon!
Elliott Johnson@ell.iott.dev · last yr.OpenTelemetry tracing is live in SvelteKit! Huge s/o to @stracke.tech for all the help along the way. SvelteKit can now emit OTEL spans for all of its serverside constructs. It also provides an instrumentation file to easily set up trace exports. svelte.dev/blog/sveltek...
I don't particularly enjoy type checking JS with JSDoc annotations instead of TS but it's sooo much better than working in a Vanilla JS codebase without any type checks. github.com/getsentry/se...
chore: Add `typescript` to type check JS Interface via JSDoc by Lms24 · Pull Request #2611 · getsentry/sentry-cli
This PR adds typescript to the repo to type-check the JS interface of Sentry CLI. I decided to build on top of the already existing JSDoc type annotations but actually enforce them by running TS. T...
github.com
1. Receive issue with reproduction using pnpm 2. Reproduce the issue 3. Change repro to a sane package manager (npm, yarn@1) 4. No longer reproduce issue Happens to us ~once per week. Question is: Is it a Sentry SDK problem? Or is it pnpm? Do I need vacation? Guess which question I can answer
I want an AI assistant that tells me honestly "I don't know" instead of making up garbage to seem all-knowing. AI really shouldn't mimic all human traits :) Don't know the type of this function? Tell me or leave it blank, but don't bs me. That's the only way I'd ever trust these things.
🎉 Tadaaa 🎉 vite-plugin-kit-routes 1.0 is out 🎉 A/ add the vite plugin B/ enjoy route typesafety ! Easy ?! More here: www.kitql.dev/docs/tools/0...
![import { sveltekit } from '@sveltejs/kit/vite'
import { kitRoutes } from 'vite-plugin-kit-routes'
/** @type {import('vite').UserConfig} */
export default config = {
plugins: [
sveltekit(),
// ✅ Add the plugin
kitRoutes(),
],
}](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:dacfxuonkf2qtqft22sc23tu/bafkreic6oa3av5jghiay2f4moiwd6uwqusemhg6pejeoolhvdw2k7samsm)
![<script lang="ts">
import { route } from '$lib/ROUTES'
</script>
<!-- 🤞 before, hardcoded string, error prone -->
<a href="/site/123">Go to site</a>
<!-- ✅ after, typechecked route, no more errors -->
<a href={route('/site/[id]', { id: 123 })}>Go to site</a>](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:dacfxuonkf2qtqft22sc23tu/bafkreiae2ry2feqf3kzil6emruplmnhi2t3fna5gx4ki34ph6ux4ipfc3e)
My #sveltesummit talk was published today! I talked about using @opentelemetry.io in SvelteKit apps and what the framework can do to make this a better experience.
Svelte Society@sveltesociety.dev · last yr.'Tracing the Slowdown: OpenTelemetry In SvelteKit Made Easy' by Lukas Stracke from Svelte Summit Spring 2025 is now available on our YouTube channel! www.youtube.com/watch?v=hFVm...
Had the honour to talk about tracing with OpenTelemetry at @svelte.dev Summit and what I think meta frameworks like SvelteKit can do to help making this an easy experience for everyone. More than happy to help making this a reality! Kicked off a discussion here: github.com/sveltejs/kit...
Support and provide Server-side instrumentation · sveltejs kit · Discussion #13775
Describe the problem Hi 👋 This issue is a collection of things I think SvelteKit should eventually offer to allow for and augment server-side instrumentation of SvelteKit applications. With kit bei...
github.com
rich harris@rich-harris.dev · last yr.got some OpenTelemetry homework from @stracke.tech
Really looking forward to Svelte Summit and meeting lots of Svelte Enthusiasts! Please come say hi at the @sentry.io booth :)
JYC@jyc.dev · 2y ago@austria.sveltesociety.dev is going to Barcelona for Svelte summit @ermeen.com @stracke.tech @bitsbysigrid.bsky.social @mxmlnznr.bsky.social Myself Many others will be there 🥰
Kinda funny when the tool you're working on becomes so good (team effort!) that a competitor 1:1 clones it and bases their work on it :D
Had some time to build a little CLI E2E testing utility that can be used with arbitrary test frameworks. All of this is a heavy WIP but what do folks think about this scenario builder approach?
What happens when your SvelteKit app slows down? Lukas Stracke @stracke.tech will show you how to trace bottlenecks with OpenTelemetry—and why it’s trickier than you’d expect. Catch this at Svelte Summit Spring 2025!
