Waldemar Hummer
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whummer.bsky.social
Waldemar Hummer
@whummer.bsky.social
CTO @ LocalStack
Reposted by Waldemar Hummer
My first YouTube video is live! 🎥
It's about accelerating CloudFront development with LocalStack! 🪄

Anyone who's touched CloudFront knows the deployment wait times.
5 to 15 minutes every time you change a Lambda@Edge function or update a distribution setting.
January 9, 2026 at 8:03 AM
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If you’re using Terraform and GitHub Actions, this one’s for you 👀

Learn how to automate Terraform testing locally with LocalStack so your CI runs faster without touching real cloud resources.

📖 🔗https://blog.localstack.cloud/automate-terraform-testing-localstack-github-actions/
Automate Terraform testing with LocalStack & GitHub Actions
Learn how to automate Terraform testing in GitHub Actions with LocalStack to validate modules without cloud costs or credentials. This tutorial shows how to set up CI workflows, run Terraform tests,…
blog.localstack.cloud
January 8, 2026 at 6:44 PM
Reposted by Waldemar Hummer
It lets you run a full CloudFront simulation right on your laptop.

In the video he covers:
1. Setting up localstack
2. Using Terraform with `tflocal`
3. Debugging functions instantly

This saves us hours of waiting time.

youtu.be/SnNAqBHDIgU
January 6, 2026 at 3:29 PM
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We shared an update on what’s next for LocalStack 👀

Unified AWS image, changes coming in March 2026, and clarity on what remains free for the community.

If LocalStack is part of your workflow, check it out 👇🏾
The Road Ahead for LocalStack: Upcoming Changes to the Delivery of Our AWS Cloud Emulators
We’re simplifying and improving the LocalStack for AWS experience by unifying Community and Pro into one image, offering a free account-based experience for individuals and open source users, and…
blog.localstack.cloud
January 6, 2026 at 2:24 PM
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What if your AI coding assistant could not only write infrastructure code, but also deploy it, test it, and fix issues automatically — all on your local machine?

That's exactly what the LocalStack MCP Server makes possible.

Learn more about it here 👉 youtu.be/9DLSr7fxNag
Getting started with the LocalStack Model Context Protocol (MCP) Server
YouTube video by LocalStack
youtu.be
December 16, 2025 at 5:12 PM
Reposted by Waldemar Hummer
LocalStack for Snowflake 1.5 introduces new SQL functions, enhanced support for Iceberg tables with CTAS, and parity improvements for window functions, large timestamps, & stage file operations for better local Snowflake development.

Check it out here 👉 blog.localstack.cloud/localstack-f...
Announcing the LocalStack for Snowflake 1.5 Release
LocalStack for Snowflake 1.5 introduces new SQL string functions, enhanced support for Iceberg tables with CTAS, and targeted parity improvements for window functions, large timestamps, and stage file...
blog.localstack.cloud
December 12, 2025 at 9:37 AM
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📹 Day 4 at re:Invent: Wrapping Up, Winding Down

That’s a wrap on re:Invent 2025!

The LocalStack booth is packed.

The team is exhausted.

And our hearts? Very, very full. 🫶🏿

www.youtube.com/watch?v=W-KF...
🎬 Day 4 at re:Invent: Wrapping Up, Winding Down
That’s a wrap on re:Invent 2025! The LocalStack booth is packed. The team is exhausted. And our hearts? Very, very full. ❤️ This week we: -Met incredible customers who stopped by to share how they…
www.youtube.com
December 5, 2025 at 10:51 AM
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And we're on a roll... here's ANOTHER newly-announced AWS feature that LocalStack already supports. Thanks to our partnership with the AWS Step Functions team, you can use the new TestState enhancements with LocalStack! (AI = Already Implemented!)

#localstack #awsstepfunctions #ai
The AWS Step Functions team just released new enhancements to the TestState API which LocalStack supports:

✅ Mock Task state results
✅ Skip execution roles in mocking
✅ Test *every* state type
✅ Submit full state machine definitions
✅ Mock context fields

🔗 blog.localstack.cloud/effective-un...
Effective Unit Testing for AWS Step Functions
AWS recently introduced enhancements to the TestState API for unit-testing individual states in a Step Functions state machine and LocalStack has partnered with them to support using this new feature…
blog.localstack.cloud
December 3, 2025 at 4:42 PM
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The LocalStack team is LIVE at AWS re:Invent 2025!

We are absolutely buzzing to be here in Las Vegas this week! 🙌🏿

Day 1 at the Expo booth was an absolute blast. We captured all the energy and excitement in our latest YouTube video!

📍 Booth #1626
🔗 www.youtube.com/watch?v=O0Tz...
December 2, 2025 at 1:47 PM
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AWS just launched Lambda Managed Instances and LocalStack already supports it. 💪🏿

This new Lambda capability lets you run functions on EC2 instances for more predictable cost, hardware choice, and tighter control over execution environments.

blog.localstack.cloud/testing-loca...
Testing Locally with Lambda Managed Instances
Lambda Managed Instances is a new capability in Lambda already supported in LocalStack that allows use of EC2 instances to maintain flexibility and predictability in allocating compute capacity.
blog.localstack.cloud
December 1, 2025 at 1:16 PM
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Stop fixing bugs. Let AI Agents fix them for you.

Join us for a session on Autonomous Software Systems and learn how AI agents are using telemetry data to detect, diagnose, and fix production bugs without human intervention.

www.meetup.com/localstack-c...
Building Autonomous Software Systems with AI Agents and Telemetry, Tue, Nov 25, 2025, 3:00 PM | Meetup
Join our session to explore how AI agents are enabling software systems that can detect, diagnose, and fix their own bugs autonomously. This event features two technical ta
www.meetup.com
November 12, 2025 at 3:39 PM
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📢LocalStack .NET Aspire Integration just hit its first stable release! 🎉

Highlights:
⚡ Eager service loading support (KUDOS @stu.dev)
🐳 Docker socket support (for Lambda containers)
🐛 Fixed Lambda + SQS "Invalid URL" bug

github.com/localstack-d...
October 27, 2025 at 2:20 PM
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🤖💥 Develop, Test & Break

Join our October meetup to see how AI agents + chaos engineering are reshaping local cloud dev.

🧠 Harsh Mishra — LocalStack MCP Server
💣 Kiah Imani — Chaos Engineering 101

🎥 Tune In: www.meetup.com/localstack-c...
Develop, Test, and Break: LocalStack MCP and Chaos Engineering, Thu, Oct 30, 2025, 4:00 PM | Meetup
Join our October meetup to explore how AI agents and chaos engineering are transforming local cloud development. This session features two hands-on talks that show you how
www.meetup.com
October 24, 2025 at 3:40 PM
Reposted by Waldemar Hummer
AWS outages are rare. But when they hit, they hit hard.

Can your app survive? Don’t guess.

Simulate real AWS service failures (like the Oct 2025 outage) using LocalStack and find out before production does.
Read the blog: blog.localstack.cloud/break-it-til...
Simulating AWS Outages Locally with Chaos Engineering
When AWS goes down, will your app stay up? In this tutorial, we’ll use LocalStack’s Chaos API to simulate real-world AWS service outages including DynamoDB throttling, SQS 503 errors, and Lambda…
blog.localstack.cloud
October 23, 2025 at 7:30 PM
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🎃 Still time to join #HacktoberFest with Localstack!
🧠 Docs, tutorials, sample apps, pick an issue & make your mark.
🎁 Swag still up for grabs!
🕓 We’re reviewing PRs daily, get yours in before Oct ends.
October 22, 2025 at 2:06 PM
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AWS outage got you twiddling your thumbs?

LocalStack devs are still out here shipping. 😎

Emulate the cloud. Skip the downtime.
October 20, 2025 at 7:11 PM
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Join our October meetup to explore how AI agents and chaos engineering are transforming local cloud development.

• Harsh Mishra will introduce the LocalStack MCP Server.
• Kiah Imani will demystify chaos engineering with LocalStack.

RSVP 👉 www.meetup.com/localstack-c...

#LocalStack #Community
October 16, 2025 at 4:43 PM
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We just launched the LocalStack MCP Server 🚀

Let AI agents 🤖 manage your local cloud environment through chat: deploy infra, analyse logs, generate IAM policies, run chaos tests & more!

Works with Cursor, VS Code, Amazon Q & any MCP client.

Read more: blog.localstack.cloud/introducing-...
Introducing the LocalStack Model Context Protocol (MCP) Server
We're excited to introduce the LocalStack MCP Server, which enables AI agents to directly manage LocalStack through a standardized protocol, utilizing various tools. This allows agents to automate the...
blog.localstack.cloud
October 14, 2025 at 1:46 PM
Reposted by Waldemar Hummer
LocalStack is participating in Hacktoberfest this year. If you'd like to learn more, ask questions, meet the LocalStack team, learn how to win swag or just connect with other participants, we're hosting a fun meetup this Thursday, October 9th. Get the details here: www.meetup.com/localstack-c...
Commit & Connect: HacktoberFest Meetup, Thu, Oct 9, 2025, 4:00 PM | Meetup
Join us as we kick off HacktoberFest with LocalStack! 🎉 This year we’re focusing on making it easier than ever to contribute: * **Docs Contributions** with *Quetzalli Wri
www.meetup.com
October 6, 2025 at 12:34 PM
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HacktoberFest 2025 is on... and LocalStack is in! 🎃

We’re calling all cloud builders, docs lovers, and open source champions. Come hack with us this October.

localstack.cloud/blog/hacktob...
HacktoberFest 2025 with LocalStack
Hack with LocalStack for HacktoberFest 2025! Contribute to open source, improve our samples and docs, win swag, and join our October 9th meetup.
localstack.cloud
October 3, 2025 at 2:34 PM
Reposted by Waldemar Hummer
Cloud testing shouldn’t make Woody look like that.

Cloud testing doesn't have to mean:

· Burning through AWS credits
· Waiting on infra tickets
· Fighting flaky CI pipelines
· Risking surprise billing
September 30, 2025 at 9:52 AM
Reposted by Waldemar Hummer
Catch dirty data before it hits your warehouse. 🧯

Snowflake Data Metric Functions (DMFs) let you monitor the freshness, completeness, and quality of your data by attaching system or user‑defined metrics to tables and columns.

docs.localstack.cloud/snowflake/fe...
Data Metric Functions
Get started with Data Metric Functions in LocalStack for Snowflake
docs.localstack.cloud
September 29, 2025 at 8:38 AM
Reposted by Waldemar Hummer
Today at noon ET (UTC -4), we'll be hosting a live LocalStack community meetup where we'll explore the new AWS Toolkit for VSCode. We'll have folks from our engineering and from AWS show how create AWS resources and even step debug Lambdas all on your local machine. www.youtube.com/live/pg3QX81...
Smarter Serverless Dev with LocalStack: VS Code Toolkit & Lambda Debugging
Join our September meetup to learn how to supercharge your serverless development workflow using the AWS Toolkit for VS Code with LocalStack.Joel Scheuner wi...
www.youtube.com
September 24, 2025 at 1:16 PM
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Now two technologies I really like. “Next-Level Infrastructure as Code with AWS CDK and LocalStack” by Matheus das Merces
September 24, 2025 at 12:21 PM
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✨ Release news: LocalStack for Snowflake 1.2

This version brings in features like:

- NiFi integration
- Network Rules
- Masking Policies
- Secrets
- Extended SQL support

Read all about it & upgrade: blog.localstack.cloud/localstack-f...
Announcing the LocalStack for Snowflake 1.2 Release
LocalStack for Snowflake 1.2 introduces Apache NiFi integration for visual data pipelines, governance features including Network Rules and Masking Policies, Resource Monitors, Secrets management, API…
blog.localstack.cloud
September 23, 2025 at 4:55 PM