Luke Hedger
Software engineer. Building things for lego.com. Distributed systems, serverless, event saucing.
Wrote Serverless Development on AWS (O’Reilly)
lukehedger.dev
📍 London
- Reposted by Luke HedgerAI-generated code shifts the real burden of development onto *validation*, yes. But humans can't validate your code by reading it any more than tests can validate it by turning green. "Is it gonna work? Is it gonna work?? IS IT???" Bub, you don't get to know til you put it in production.
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- Off to the pub status.claude.com
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- This is a nice intro to Skills if you haven’t dug into them yet claude.com/blog/buildin... > Skills give Claude Code access to your procedural knowledge through progressive disclosure, revealing information in layers only when needed, rather than flooding the context window
- What sort of thing are you using Claude Skills for? So far I’ve got skills for: - writing ADRs - creating Jira tickets (via acli jira) - developing Lambda functions - developing CDK stacks - enforcing typescript best practices - teaching patterns (tests, design patterns, DI, composition etc)
- Monitoring Third-Party Webhook Delays with AWS Durable Functions Using Lambda durable functions to monitor delivery and performance of third party webhooks dev.to/aws-builders...
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- Perfect advice for blending a coding assistant into your workflow in 2026. If you’ve been put off or overwhelmed so far, Rizel’s approach could work for you!
- My core dev stack changed in 2025: - Zed - Ghostty - Claude Code - Bun Still using Notion for notes, tldraw for canvas, GitHub + Copilot. In terms of AWS, 2026 is the year of the Lambda comeback and a drastic reduction in usage of other serverless glue/compute services. Let’s go!!
- My core dev workflow mostly looks like this: - @zed.dev - @github.com - @tldraw.com - @notion.com - @awscloud.bsky.social - @oreilly.bsky.social - Ollama - Spotify Looking forward to trying out a few things in the new year: - Ghostty - Q - @deno.land 2.0
- Wow a lot of LLM progress this year! Can’t believe Claude Code was only released in February and is already such a staple in a lot of engineers’ stacks
- Working on some examples of Lambda durable functions to help my understanding. Also trying to summarise key concepts. So far… API Gateway, CDK, microservice orchestration, strategy-pattern workflow, tests and async callback Next: state machine/chart, eventbridge github.com/lukehedger/l...
- Lambda Managed Instances just announced! > AWS Lambda Managed Instances lets you run Lambda functions on your Amazon EC2 instances while maintaining Lambda's operational simplicity aws.amazon.com/about-aws/wh...
- > Lambda Managed Instances is ideal for customers requiring specialized hardware configurations, as well as those with steady-state or predictable workloads seeking to optimize costs while maintaining Lambda's serverless experience
- Finally! We can programmatically get a set of IAM permission needed for an AWS API call aws.amazon.com/about-aws/wh...
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- Reposted by Luke HedgerIntroducing Serverless @resonatehqio.bsky.social Build distributed, durable applications with Resonate's dead simple programming model, Distributed Asynchronous Await Now on serverless
- Really interesting writeup from @unkey.com on their serverless exit. Let’s dig into the detail… www.unkey.com/blog/serverl...
- First off, after reading thru the post it’s clear it should be titled Why We Are Leaving Cloudflare. Most of the constraints are Cf-specific, and wouldn’t be an issue on AWS
- And in actual fact they have moved to AWS Fargate (which is - at least marketed - as a serverless service!) 😅
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View full threadAlways nice to see some balance in a post but this is definitely an anti-serverless post 😂 And that’s fine, you didn’t have a great experience, own it and enjoy your rant! 🍿
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- hey @schickling.dev if I use @livestore.dev as an event-sourcing framework, am I locked into using SQLite as the event store or is this swappable? docs.livestore.dev/evaluation/e...
- Need to take a closer look but @livestore.dev can be used as an “event-sourcing framework” docs.livestore.dev/evaluation/e...
- Seen this in a few places now… is single node the future of (most) backend software engineering? topicpartition.io/definitions/...
- If you’re not familiar with @tigerbeetle.com (and TigerStyle) this is a great introduction! And even if you are it’s a good read www.amplifypartners.com/blog-posts/w...
- AWS Lambda is making a comeback
- Is anyone implementing the OCI runtime spec in Zig?
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- Cool to see @cedardb.com will offer S3 object storage as an option for persistence cedardb.com/docs/get_sta...
- yet another launcher github.com/klaatu01/yal
- Some starter SQL queries I put together for trying out Iceberg tables on S3 with Athena github.com/lukehedger/i...
- Just ran `bun index.ts` without installing node_modules first and amazed that it *just worked*. Then found out about auto-install. Nice feature @bun.sh! "Under Bun-style module resolution, packages are auto-installed on the fly into a global module cache during execution" bun.com/docs/runtime...
- Are you using ULID or UUID v7?
- What do teams actually do about code freezes around the high shopping season? The research and armchair advice says “absolutely not”. But on the ground I see lots of nervousness about releasing code for days, weeks and even months around key dates
- Always wondered what a MFA token generator does when I’m not looking at it
- Paxos-as-a-service would be handy! “very few customers… are going to ask Amazon for Paxos-as-a-service... AWS should return to its roots and release important building blocks — the things customers will need, not necessarily what they're asking for”
- Reposted by Luke HedgerBemused by the enthusiastic embrace of JSON-RPC by the LLM tools ecosystem.
- Reposted by Luke HedgerThe biggest lie in Software Engineering Undo There’s no undo Only a new Do that resembles the old state The past is immutable We just pile on a new present
