Michael Gasch
@embano1.mgasch.com
Product Manager AWS. Golang. Distributed Systems.
Views and opinions are my own.
Views and opinions are my own.
Pinned
AWS re:Invent 2025 - [NEW LAUNCH] Deep Dive on AWS Lambda durable functions (CNS380)
YouTube video by AWS Events
youtu.be
Wow! 3k views in just one day - couldn’t be more happy with @edjgeek.bsky.social and my first deep dive on AWS Lambda durable functions at #reinvent2025
youtu.be/XJ80NBOwsow?...
youtu.be/XJ80NBOwsow?...
Reposted by Michael Gasch
It was so much fun deep diving on AWS Lambda durable functions with @embano1.mgasch.com at this year's re:Invent! And now we are doing it again and YOU get to ask questions! Join us tomorrow for "Serverless Office Hours | AWS Lambda durable functions". Watch us at twitch.tv/aws at 11 AM Pacific.
December 15, 2025 at 4:04 PM
It was so much fun deep diving on AWS Lambda durable functions with @embano1.mgasch.com at this year's re:Invent! And now we are doing it again and YOU get to ask questions! Join us tomorrow for "Serverless Office Hours | AWS Lambda durable functions". Watch us at twitch.tv/aws at 11 AM Pacific.
Wow! 3k views in just one day - couldn’t be more happy with @edjgeek.bsky.social and my first deep dive on AWS Lambda durable functions at #reinvent2025
youtu.be/XJ80NBOwsow?...
youtu.be/XJ80NBOwsow?...
AWS re:Invent 2025 - [NEW LAUNCH] Deep Dive on AWS Lambda durable functions (CNS380)
YouTube video by AWS Events
youtu.be
December 7, 2025 at 12:09 PM
Wow! 3k views in just one day - couldn’t be more happy with @edjgeek.bsky.social and my first deep dive on AWS Lambda durable functions at #reinvent2025
youtu.be/XJ80NBOwsow?...
youtu.be/XJ80NBOwsow?...
Reposted by Michael Gasch
the cdk release containing the support for durable functions was out yesterday! github.com/aws/aws-cdk/...
now I go and do what Werner is always telling us to do: go build 😁
now I go and do what Werner is always telling us to do: go build 😁
Release v2.232.0 · aws/aws-cdk
Features
update L1 CloudFormation resource definitions (#36299) (0945692)
bedrock-agentcore: add fromImageUri method to AgentRuntimeArtifact (#36263) (ad25aba)
lambda: add support for durable func...
github.com
December 6, 2025 at 7:38 AM
the cdk release containing the support for durable functions was out yesterday! github.com/aws/aws-cdk/...
now I go and do what Werner is always telling us to do: go build 😁
now I go and do what Werner is always telling us to do: go build 😁
Reposted by Michael Gasch
Excited to deep dive into the new product announcement for AWS Lambda Durable Functions at reInvent 2025
December 3, 2025 at 6:39 PM
Excited to deep dive into the new product announcement for AWS Lambda Durable Functions at reInvent 2025
Reposted by Michael Gasch
"Developing AWS Lambda Durable Functions with AWS SAM" by Eric Johnson
#serverless #aws-lambda #aws-sam
#serverless #aws-lambda #aws-sam
Developing AWS Lambda Durable Functions with AWS SAM
How to configure, build, and deploy long-running workflows using SAM templates
community.aws
December 3, 2025 at 10:00 PM
"Developing AWS Lambda Durable Functions with AWS SAM" by Eric Johnson
#serverless #aws-lambda #aws-sam
#serverless #aws-lambda #aws-sam
I think I want to attend that ONE :)
Here is some Friday pre:Invent fun... I am doing a session on Wednesday that is NOT in the catalog, but it will be. You will NOT want to miss this. Look for me - 10:30 AM (Vegas Time) In the Mandalay Bay.
November 28, 2025 at 10:30 PM
I think I want to attend that ONE :)
Reposted by Michael Gasch
Finally! We can programmatically get a set of IAM permission needed for an AWS API call
aws.amazon.com/about-aws/wh...
aws.amazon.com/about-aws/wh...
AWS Service Reference Information now supports SDK Operation to Action mapping - AWS
Discover more about what's new at AWS with AWS Service Reference Information now supports SDK Operation to Action mapping
aws.amazon.com
November 18, 2025 at 9:45 AM
Finally! We can programmatically get a set of IAM permission needed for an AWS API call
aws.amazon.com/about-aws/wh...
aws.amazon.com/about-aws/wh...
Reposted by Michael Gasch
Control structures in programming languages: from goto to algebraic effects xavierleroy.org/control-stru...
Control structures in programming languages
Xavier Leroy
xavierleroy.org
November 5, 2025 at 9:21 AM
Control structures in programming languages: from goto to algebraic effects xavierleroy.org/control-stru...
It’s unbelievable how much of an impact LLMs have on my daily work. I‘m definitely 10x more productive and the quality of my work also improved as these tools help me to reduce my deficiencies. Nope, they don’t replace thinking (yet), but all the undifferentiated things which slow down productivity.
September 5, 2025 at 8:47 PM
It’s unbelievable how much of an impact LLMs have on my daily work. I‘m definitely 10x more productive and the quality of my work also improved as these tools help me to reduce my deficiencies. Nope, they don’t replace thinking (yet), but all the undifferentiated things which slow down productivity.
Reposted by Michael Gasch
We may still get a generified version of errors.As in #golang's standard library! 🤞
github.com/golang/go/is...
github.com/golang/go/is...
proposal: errors: As with type parameters · Issue #51945 · golang/go
Currently in 1.18 and before, when using the errors.As method, an error type you would like to write into must be predeclared before calling the function. For example: var myErr *MyCustomError if e...
github.com
August 21, 2025 at 10:36 AM
We may still get a generified version of errors.As in #golang's standard library! 🤞
github.com/golang/go/is...
github.com/golang/go/is...
Reposted by Michael Gasch
Use TouchID for sudo on macOS:
- cd /etc/pam.d && cp sudo_local.template sudo_local
- uncomment the line in sudo_local
- cd /etc/pam.d && cp sudo_local.template sudo_local
- uncomment the line in sudo_local
August 18, 2025 at 3:38 PM
Use TouchID for sudo on macOS:
- cd /etc/pam.d && cp sudo_local.template sudo_local
- uncomment the line in sudo_local
- cd /etc/pam.d && cp sudo_local.template sudo_local
- uncomment the line in sudo_local
Nice, more management events. In EventBridge (receiving CloudTrail events), we call those non-mutating events which customers and partners use to subscribe, filter and quickly take action. Common use cases (obviously) threat detection (S3 bucket scans anyone?) and identifying noisy polling code.
Old and busted: Cloud attackers making noisy List/Describe calls.
New hotness: Laundering enumeration calls through an AWS service silently.
Or at least, that used to work, until @datadoghq.com partnered with AWS to close this gap. Read more here:
securitylabs.datadoghq.com/articles/enu...
New hotness: Laundering enumeration calls through an AWS service silently.
Or at least, that used to work, until @datadoghq.com partnered with AWS to close this gap. Read more here:
securitylabs.datadoghq.com/articles/enu...
Enumerating AWS the quiet way: CloudTrail-free discovery with Resource Explorer | Datadog Security Labs
Discover how attackers could quietly enumerate AWS resources via Resource Explorer, and how Datadog and AWS worked together to close the visibility gap.
securitylabs.datadoghq.com
August 20, 2025 at 11:36 AM
Nice, more management events. In EventBridge (receiving CloudTrail events), we call those non-mutating events which customers and partners use to subscribe, filter and quickly take action. Common use cases (obviously) threat detection (S3 bucket scans anyone?) and identifying noisy polling code.
Reposted by Michael Gasch
I think *most* errors should default to returning a "safe" error message that doesn't include any raw input data or sensitive data about the host system, and then add an optional field/method that has more detailed info that might be sensitive (likely only used during debugging).
August 8, 2025 at 2:59 PM
I think *most* errors should default to returning a "safe" error message that doesn't include any raw input data or sensitive data about the host system, and then add an optional field/method that has more detailed info that might be sensitive (likely only used during debugging).
arXiv Daily: We have a chat service that works over DNS so you can LLM on a flight without paying
And of course it works 😆
And of course it works 😆
August 5, 2025 at 10:41 AM
arXiv Daily: We have a chat service that works over DNS so you can LLM on a flight without paying
And of course it works 😆
And of course it works 😆
Reposted by Michael Gasch
An example of agent-assisted-programming going wrong: sketch.dev/blog/our-fir...
Our first outage from LLM-written code
Postmortem of our first service outage caused by LLMs.
sketch.dev
July 31, 2025 at 7:40 PM
An example of agent-assisted-programming going wrong: sketch.dev/blog/our-fir...
Reposted by Michael Gasch
My take on Event Sourcing
> Event Sourcing to build an application
Hell no
> Event Sourcing to build a platform
Begrudgingly, yes
bsky.app/profile/luke...
> Event Sourcing to build an application
Hell no
> Event Sourcing to build a platform
Begrudgingly, yes
bsky.app/profile/luke...
Do you like event sourcing?
1️⃣ <a href="https://poll.blue/p/YGsLVB/1" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link" target="_blank" rel="noopener" data-link="bsky">Expert, use it all the time
2️⃣ <a href="https://poll.blue/p/YGsLVB/2" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link" target="_blank" rel="noopener" data-link="bsky">Part-time user, learning the ropes
3️⃣ <a href="https://poll.blue/p/YGsLVB/3" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link" target="_blank" rel="noopener" data-link="bsky">Would like to use but don’t know where to start
4️⃣ <a href="https://poll.blue/p/YGsLVB/4" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link" target="_blank" rel="noopener" data-link="bsky">Not interested, next question
📊 Show results
1️⃣ <a href="https://poll.blue/p/YGsLVB/1" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link" target="_blank" rel="noopener" data-link="bsky">Expert, use it all the time
2️⃣ <a href="https://poll.blue/p/YGsLVB/2" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link" target="_blank" rel="noopener" data-link="bsky">Part-time user, learning the ropes
3️⃣ <a href="https://poll.blue/p/YGsLVB/3" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link" target="_blank" rel="noopener" data-link="bsky">Would like to use but don’t know where to start
4️⃣ <a href="https://poll.blue/p/YGsLVB/4" class="hover:underline text-blue-600 dark:text-sky-400 no-card-link" target="_blank" rel="noopener" data-link="bsky">Not interested, next question
📊 Show results
July 30, 2025 at 3:42 PM
My take on Event Sourcing
> Event Sourcing to build an application
Hell no
> Event Sourcing to build a platform
Begrudgingly, yes
bsky.app/profile/luke...
> Event Sourcing to build an application
Hell no
> Event Sourcing to build a platform
Begrudgingly, yes
bsky.app/profile/luke...
Reposted by Michael Gasch
Brilliant! SQS adds "Fair Queues"
Perfect for multi-tenant systems to prevent one tenant from hogging the queue for everyone else.
aws.amazon.com/blogs/compu...
Perfect for multi-tenant systems to prevent one tenant from hogging the queue for everyone else.
aws.amazon.com/blogs/compu...
July 22, 2025 at 9:29 AM
Brilliant! SQS adds "Fair Queues"
Perfect for multi-tenant systems to prevent one tenant from hogging the queue for everyone else.
aws.amazon.com/blogs/compu...
Perfect for multi-tenant systems to prevent one tenant from hogging the queue for everyone else.
aws.amazon.com/blogs/compu...
Reposted by Michael Gasch
Here we go:
- S3 Vectors: aws-news.com/article/2025...
- EventBridge Logging: aws-news.com/article/2025...
- New Free plan: aws-news.com/article/2025...
- S3 Metadata for existing objects: aws-news.com/article/2025...
- S3 Vectors: aws-news.com/article/2025...
- EventBridge Logging: aws-news.com/article/2025...
- New Free plan: aws-news.com/article/2025...
- S3 Metadata for existing objects: aws-news.com/article/2025...
Announcing Amazon S3 Vectors (Preview)—First cloud object storage with native support for storing and querying vectors
Amazon S3 Vectors introduces a purpose-built, cost-optimized cloud storage solution that natively supports storing and querying vectors, enabling more efficien...
aws-news.com
July 16, 2025 at 6:36 AM
Here we go:
- S3 Vectors: aws-news.com/article/2025...
- EventBridge Logging: aws-news.com/article/2025...
- New Free plan: aws-news.com/article/2025...
- S3 Metadata for existing objects: aws-news.com/article/2025...
- S3 Vectors: aws-news.com/article/2025...
- EventBridge Logging: aws-news.com/article/2025...
- New Free plan: aws-news.com/article/2025...
- S3 Metadata for existing objects: aws-news.com/article/2025...
Reposted by Michael Gasch
Just got word from Manning: Think Distributed Systems is moving to production
✔️ Copy
✔️ Graphics
✔️ Typesetting
The last steps before pages turn into print
www.manning.com/books/think-...
✔️ Copy
✔️ Graphics
✔️ Typesetting
The last steps before pages turn into print
www.manning.com/books/think-...
Think Distributed Systems - Dominik Tornow
Reason confidently about distributed systems.
All modern software is distributed. Let’s say that again—all modern software is distributed. Whether you’re building mobile utilities, microservices, or ...
www.manning.com
July 10, 2025 at 3:35 PM
Just got word from Manning: Think Distributed Systems is moving to production
✔️ Copy
✔️ Graphics
✔️ Typesetting
The last steps before pages turn into print
www.manning.com/books/think-...
✔️ Copy
✔️ Graphics
✔️ Typesetting
The last steps before pages turn into print
www.manning.com/books/think-...
Reposted by Michael Gasch
“$110M a year on AWS? I could do it for half!”
Bro, your last infra project was making a cron job email you weather updates.
Sit down.
www.duckbillgroup.com/blog/figmas-...
Bro, your last infra project was making a cron job email you weather updates.
Sit down.
www.duckbillgroup.com/blog/figmas-...
Figma's $300k Daily AWS Bill Isn't the Scandal You Think It Is
Well, the internet did what the internet does best this week: it collectively lost its mind over a number in an S-1 filing. Figma disclosed they signed a ~$550 million contract with AWS, someone used ...
www.duckbillgroup.com
July 10, 2025 at 11:05 PM
“$110M a year on AWS? I could do it for half!”
Bro, your last infra project was making a cron job email you weather updates.
Sit down.
www.duckbillgroup.com/blog/figmas-...
Bro, your last infra project was making a cron job email you weather updates.
Sit down.
www.duckbillgroup.com/blog/figmas-...
Reposted by Michael Gasch
🚀 📢 Want to learn how to use Avro formatted Kafka events with AWS Lambda? Validate/share schema + filter binary format, See how Powertools makes it so much easier
📺 Join Serverless Office Hours Today at 11AM PT. 7PM UK, 8PM CET.
AWS Events YouTube: www.youtube.com/@AWSEventsCh...
📺 Join Serverless Office Hours Today at 11AM PT. 7PM UK, 8PM CET.
AWS Events YouTube: www.youtube.com/@AWSEventsCh...
July 1, 2025 at 4:09 PM
🚀 📢 Want to learn how to use Avro formatted Kafka events with AWS Lambda? Validate/share schema + filter binary format, See how Powertools makes it so much easier
📺 Join Serverless Office Hours Today at 11AM PT. 7PM UK, 8PM CET.
AWS Events YouTube: www.youtube.com/@AWSEventsCh...
📺 Join Serverless Office Hours Today at 11AM PT. 7PM UK, 8PM CET.
AWS Events YouTube: www.youtube.com/@AWSEventsCh...
„Gemini CLI is awesome! But only when you make Claude Code use it as its bitch.“ 😆
www.reddit.com/r/ChatGPTCod...
www.reddit.com/r/ChatGPTCod...
Gemini CLI is awesome! But only when you make Claude Code use it as its bitch.
www.reddit.com
June 28, 2025 at 10:33 AM
„Gemini CLI is awesome! But only when you make Claude Code use it as its bitch.“ 😆
www.reddit.com/r/ChatGPTCod...
www.reddit.com/r/ChatGPTCod...
💯
Best conference 🎤🫳
Best conference 🎤🫳
Still buzzing from Systems Distributed '25
Every talk, every chat, every moment was exceptional. From start to finish, the best conference I've ever attended
Massive thanks to the speakers, the attendees, and the team at @tigerbeetle.com for making this event unforgettable
Every talk, every chat, every moment was exceptional. From start to finish, the best conference I've ever attended
Massive thanks to the speakers, the attendees, and the team at @tigerbeetle.com for making this event unforgettable
June 23, 2025 at 11:37 AM
💯
Best conference 🎤🫳
Best conference 🎤🫳
June 20, 2025 at 11:02 AM