Welcome to this week’s Uptime Sync. This issue covers Halodoc’s canary migration of AWS MSK from ZooKeeper to KRaft, a practical look at a full-stack AWS setup in 2026, and how AI is flooding open source projects with high-quality security reports. We also examine why FastCGI still beats newer options for reverse proxies in some workloads, how SingleStore scaled PrivateLink routing across AWS, Azure, and GCP using Envoy and Wasm, and what testing distributed systems under chaos really looks like.
On the tutorial front: comparing S3 Files vs EFS on cost, POSIX limits, and Lambda fit, understanding Kubernetes networking from the ground up, why Dockerfile practices become a DevOps tax before they become a security problem, idempotency patterns that prevent duplicate failures, and how to use PostgreSQL as a cache, queue, and search engine.
This week’s projects bring you Browser Harness for self-healing browser task execution, Future AGI for tracing, evals, simulations, and guardrails around AI apps, GitButler for modern Rust-based version control workflows, Adrian for runtime security monitoring of AI agents, and pdf_oxide for fast PDF extraction, conversion, and editing in Python and Rust.
Newsworthy Reads
Tutorials of the Week
Projects of the Week
Browser Harness | Self-healing harness that enables LLMs to complete any task.
Open-source, end-to-end platform for evaluating, observing, and improving LLM and AI agent applications. Tracing · Evals · Simulations · Datasets · Gateway · Guardrails

GitButler is a Rust-based version control client powered by Tauri and Svelte
Runtime security monitoring and control for AI agents. Catches malicious tool use, prompt injection, and policy drift in real time, before the agent acts.
The fastest PDF library for Python and Rust. Text extraction, image extraction, markdown conversion, PDF creation & editing.
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