Architecture Notes

As many of you know every week we send out newsletter and each one has a new image the top each week, this takes a bit of time to design and create with @LumaLabsAI. I am about to produce this in the fraction of the time with tons of artistic control. lumalabs.ai/uni-1

Architecture Notes Weekly: Trio out now! Why pgvector might not cut it in production How bloom filters fail at scale Why LLMs can’t replace hands-on learning Plus: slashing cloud costs and Postgres as a lakehouse system Join thousands of engineers! Don’t miss out 🚀

Building GenAI infra isn’t theory—it’s hard-won experience. Learn from 60+ engineers who’ve scaled LLMs, vector stores & RAG pipelines at QCon SF 2025. What worked. What failed. What to avoid.

Architecture Notes Weekly: Generator out now! How AWS serves 1 petabyte per second on old hard drives The 14-hour outage that killed Slack, Signal, and Premier League Building a key-value database from scratch with LSM trees Join thousands of engineers! Don't miss out! 🚀

Methodologies

We are back!

Selling to enterprises? Features like SSO, Directory Sync (SCIM), and Audit Logs are must-haves — but building them in-house is expensive and time-consuming let @WorkOS do the heavy lifting. Here is how they saved one company almost 8 million.

Arc Notes Weekly #90: Halt is out now! 1.Lessons from Canva’s outage on resilience 2.uv: The package manager simplifying Python scripting 3.Building your own data center for personal projects 4.Test-driven development with LLMs Join 68,312 subscribers! Don’t miss out!

Arc Notes Weekly #89: Land 1. Discover how Threads scaled for 300M+ users. 2. Master advanced Git commands. 3. Explore innovations making SQLite 100x faster for serverless and edge computing. Join 60K readers. Don’t miss out!

Capture and share deep session replays, from frontend screens to backend traces, metrics, and logs with @trymultiplayer's new Platform Debugger.