Field Signal · Curated Reading
The Engineering
Signal.
High-signal field notes, architecture teardowns, and engineering writing from 50 publications. A focused reading queue for becoming a stronger end-to-end engineer. Updated 19 Aug.
A letter to the Discord community in Brazil
On the order from Brazil's ANPD to suspend screensharing and video features in the country, how we're complying, and our commitment to our community in Brazil.
How We’re Building Scam Alert on WhatsApp With End-to-End Encryption and Verifiability Guarantees
WhatsApp is committed to helping people stay safe while protecting the privacy of their messages. As scam tactics evolve — from impersonation to social engineering to AI-generated lures — we’re always evolving as well, so that our protections stay ahead of scammers while protecting people’s pe...
How to Pretty-Print Your Kubernetes YAML as KYAML and Why You'd Want To
YAML has been the standard way to write Kubernetes manifests for years. Every example, tutorial, and configuration file you come across is written in it. The problem isn't that YAML is a bad format. It's that YAML gives you a lot of choices, and not all of them are equally good for writing Kubernete...
How Medium Powers Real-Time Recommendations at 1M OPS
Inside Medium’s move from relational features to list features in its ScyllaDB-based feature store “Keep readers reading” is the not-so-simple goal of Medium’s recommendations system. To predict what’s most likely to appeal to a particular reader at any given time, Medium continuously processe...
Link Discord and WoW to Keep the Guild Chatting Wherever You Are
Gather your guildmates! Link your Discord and Battle.net accounts to unlock synced guild chat across Discord and World of Warcraft.
Discord Update: August 11, 2026 Changelog
Here's the Discord Changelog from August 11, 2026, so you can stay informed on what’s new in recent app updates!
Multi-region high availability for Kafka workloads with a single Stretch Cluster
Redpanda Operator 26.2 brings GA Stretch Clusters for multi-region replication, Redpanda Connect pipelines as K8s resources, Gateway API support, and safer rolling restarts.
ScyllaDB Customer Experience Spotlight: Susie Solis
Meet Susie Solis, a Technical Support Engineer on the Customer Experience team here at ScyllaDB.
How and Why Netflix Built a Real-Time Distributed Graph: Part 3 — Querying the graph with gRPC…
How and Why Netflix Built a Real-Time Distributed Graph: Part 3 — Querying the graph with gRPC execution API Authors: Nilesh Mishra and Ajit Koti This is the third entry of a multi-part blog series describing how we built a Real-Time Distributed Graph (RDG). In Part 1 , we discussed the motivation f...
Discord Patch Notes: August 4, 2026
Check out the finer details of the more technical fixes implemented into Discord recently.
General Availability of Mobile Platform Support Arrives in Discord Social SDK Version 1.10
Mobile support is now generally available in the Discord Social SDK, allowing developers to extend Discord's social experiences to iOS and Android.
From User Sequences to Scaling Laws: A Multi-Stage Architecture for Meta’s Ads Ranking
Every day, Meta’s recommendation platforms handle billions of user interactions, generating rich temporal signals that capture individual preferences and intent across products, ads, and content. In our 2024 post on sequence learning for ads recommendations, we showed how modeling the order and timi...
DDIA 2nd Edition Excerpt: On Scalability
Martin Kleppmann and Chris Riccomini's scalability considerations for designing data-intensive applications -- from the second edition of the Designing Data-Intensive Applications book
Squircles, Styles, and Spacing: How Your Feedback is Helping Improve Mobile
We're working to more closely match your mobile and desktop experiences, including changes to server icons and the chat bar. (Did we mention Ash, the OG dark theme, is back?)
GEM Training: How Meta Doubled the Efficiency of Its LLM-Scale Ads Foundation Model
Meta’s Generative Ads Recommendation Model (GEM), the foundation model behind ads recommendations across Instagram and Facebook, now trains at LLM scale on several thousand of the latest-generation GPUs. This post goes into the details on how we achieved: doubling end-to-end (E2E) training eff...
Gateway API v1.6: TCPRoute and UDPRoute Graduate to Standard
The Kubernetes SIG Network community is thrilled to share the release of Gateway API v1.6.0 , which was released on June 30th of this year! Gateway API has become the standard for modern, role-oriented, and expressive service networking in Kubernetes. In previous releases, Gateway API established a ...
Out-of-band Policy Engine: governance AI agents can't ignore
Somewhere in your company, right now, someone is building an agent. Here’s how the latest release of Redpanda’s Agentic Data Plane makes it safe to run them.
Agentic kill switch is a database problem. So we built Redpanda SQL
Agentic governance needs a new kind of database, so we built Redpanda SQL. Now available on both AWS and Google Cloud.
Modeling Device Capabilities for Analytics
by Aarti Laddha , Richard Diaz-Cool , Rishika Idnani , Venkatesh Selveraj Netflix supports a vast and evolving set of features and content types, ranging from 4K streaming and immersive audio to live streaming and cloud gaming, across a diverse ecosystem of devices. However, not all devices are crea...
Kubernetes v1.37 Sneak Peek
As we get closer to the release date for Kubernetes v1.37, the project develops and matures, features may be deprecated, removed, or replaced with better ones for the project's overall health. This blog outlines some of the planned changes for the Kubernetes v1.37 release that the release team feels...
GenRec: Towards LLM-Native Recommendation at Netflix
Authors: Ying Li , Arjun Rao , Shradha Sehgal Introduction Recommendations sit at the heart of the Netflix experience. Our current production models rely on thousands of hand‑crafted features over users, items, and interactions, along with specialized architectures for sequence modeling, feature int...
How the controller-runtime Cache Actually Works, and Why Your Controller Does Not Crash the API Server
This article has been revised since it was first published, to correct several significant technical inaccuracies in the original text. Kubernetes has long been the default platform for distributed workloads, and writing your own controller for it is now a matter of a few hours. The common path — Go...
Introducing Profile Frames: Decorative Borders to Make Your Discord Profile Museum-Worthy
Introducing Profile Frames: a new way to put a finishing touch on your Discord profile. Frames add a decorative border around your profile, giving the whole thing a look that's unmistakably yours.
10X more data, same 4 seconds: single-query scaling in Redpanda SQL on 1TB
A benchmark on how a single analytical query behaves in Redpanda SQL as the dataset and the cluster grow.
Lessons Learned from Real-World NoSQL Database Migrations
Discover the strategies, challenges, and trade-offs teams faced in a few real-world migrations to ScyllaDB