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Lambda on hard mode: serverless HTTP in Rust
In this post, we'll talk about how Modal handles real-time HTTP requests and WebSockets in serverless functions.
New
The latest blog posts to take off on Hacker News. 281 posts.
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Nix is a better Docker image builder than Docker's image builder
Xe Iaso's personal website.
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Sunlight, a Certificate Transparency log implementation
Let’s Encrypt is proud to introduce Sunlight, a new implementation of a Certificate Transparency log that we built from the ground up with modern Web PKI opportunities and constraints in mind. In partnership with Filippo Valsorda, who led the design and implementation, we incorporated feedback from the broader…
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Spinkube: Running WASM in Kubernetes
Read some of the latest blog posts from Akamai Developers.
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JIT WireGuard
Our fancy WireGuard setup was accumulating stale peers. Here's what we did about it.
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Building Meta's GenAI infrastructure
Marking a major investment in Meta’s AI future, we are announcing two 24k GPU clusters. We are sharing details on the hardware, network, storage, design, performance, and software that help us extr…
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Deterministic simulation testing for our entire SaaS
How we leverage Antithesis to deterministically simulate our entire SaaS platform and verify its correctness, all the way from signup to running entire Kafka workloads.
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Cloning a Laptop over NVMe TCP
Recently, I got a new laptop and had to set it up so I could start using it. But I wasn't really in the mood to go through the same old steps which I had explained in this post earlier . I was complaining about this to my colleague, and there came the suggestion of why not copy the entire disk to the new laptop…
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S3 is files, but not a filesystem
"Deep" modules, mismatched interfaces - and why SAP is so painful
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Build Initramfs Rootless
Let's create an hello world init program that the kernel can execute to show that everything works correctly:
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Network Tunneling with QEMU
While investigating an incident, we detected uncommon malicious activity inside one of the systems. We ran an analysis on the artifacts, only to find that the adversary had deployed and launched the QEMU hardware emulator.
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Free data transfer out to internet when moving out of AWS
You told us one of the primary reasons to adopt Amazon Web Services (AWS) is the broad choice of services we offer, enabling you to innovate, build, deploy, and monitor your workloads. AWS has continuously expanded its services to support virtually any cloud workload. It now offers over 200 fully featured services for…
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There are only 12 binaries in Talos Linux
Updated October 2025 to reflect the growth in binaries from 12 to <50.
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The hater's guide to Kubernetes
Among a certain tech set, Kubernetes has earned a reputation as an unnecessarily complicated time-sink that startups should avoid. Using Kubernetes with a small team is seen as a sign of over-engineering.
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Deploying fiber in the home
Getting a fiber Internet connection to your home is a big deal! It’s probably the last physical connection you’ll ever need, due to the virtually unlimited bandwidth, stability, performance, and attainable speeds.
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K8s Service Meshes: The Bill Comes Due
Kubernetes Service Meshes aren't free anymore, what teams need to know moving forward.
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Defcon: Preventing overload with graceful feature degradation (2023)
This is one in a series of papers I’m reading from OSDI and Usenix ATC. These paper reviews can be delivered weekly to your inbox , or you can subscribe to the Atom feed . As always, feel free to reach out on Twitter with feedback or suggestions!
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All you need is Wide Events, not "Metrics, Logs and Traces"
This quote from Charity Majors is probably the best summary of the current state of observability in the tech industry - a total, mass confusion.
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Bpftop: Streamlining eBPF performance optimization
By Jose Fernandez
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A Distributed File System in Go Cut Average Metadata Memory Usage to 100 Bytes
Learn JuiceFS Enterprise Edition’s metadata engine design and optimization methods that reduced its metadata memory usage by 90%.
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Monitoring latency: Cloudflare Workers vs Fly vs Koyeb vs Railway vs Render
We benchmarked latency across 5 cloud providers from 6 global locations over 2 weeks. Cloudflare Workers averaged 182ms, Fly.io 61ms (warm), Railway 381ms, Koyeb 539ms, and Render 451ms. Full timing breakdowns included.
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Serving a website from a Git repo without cloning it
It's fairly common to use git repositories as a vehicle for serving websites. The webdev pushes their changes to some branch of a publicly available git repository, and some web server somewhere serves the current tip of that branch as the website. Github Pages would be the most famous example of this.
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Considerations for a long-running Raspberry Pi
Keeping a Raspberry Pi online and working with zero intervention for weeks, months, or years is somewhat of an art form. Several classes of things can go wrong, and you need to consider how your Pi will recover from each of them.
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Guix on the Framework 13 AMD
wingolog: article: guix on the framework 13 amd
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Fly.io has GPUs now
Documentation and guides from the team at Fly.io.
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vDPA: Support for block devices in Linux and QEMU
Using libblkio, QEMU Storage Daemon, and VDUSE
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