Latest engineering dispatches — practical deep dives on architecture, performance, and tooling.
Your VPS doesn't have to show a single open port to the public internet. Here's how to move SSH, admin panels, and databases onto Tailscale tailnet IPs only, close every inbound firewall rule, and write ACLs that assume your devices are already compromised — with a minimal two-server setup as the…
A Dockerized RAG stack can start anywhere from three to eight containers before you ask a single question — and knowing exactly what each one does turns confusion into control. This walkthrough maps the Gradio, Ollama, Milvus, and NVIDIA NIM containers, follows a PDF through the four-stage…
Tailscale SSH claims port 22 on your tailnet IP, swaps authorized_keys for control-plane-managed node keys, and distributes host keys automatically — which makes your bastion host look suddenly redundant. Here is exactly what changes under the hood, plus the honest cases where you should still keep…
Appium, Espresso, XCUITest, Detox, and Maestro solve mobile UI testing with five completely different architectures. This comparison breaks down each framework's synchronization model, setup cost, and flakiness trade-offs so mobile QA teams can pick the right tool for their platform, accuracy…
VRAM — not clock speed — decides which models your machine can actually run, and that single fact reshapes how every dollar should be spent. This guide walks through GPU tiers, the CPU's underrated role, and multi-GPU decisions with real 2026 street prices and benchmarks, so your local AI…
Running vllm serve doesn't start one program — it spawns a tree of API servers, engine cores, GPU workers, and sometimes a DP Coordinator, all wired together with ZMQ sockets. This walkthrough traces vLLM's V1 multi-process architecture from the CLI to the first forward pass on the device, step by…
Most engineers obsess over chunking strategies and vector databases, yet the pipeline that feeds them is where the real engineering lives. This guide maps all 11 stages of an automated docs ingestion pipeline — sitemap URL discovery, HTML cleaning, embedding, vector upserts, and incremental refresh…
When you call a model through LiteLLM, the model string you send is just a public name for a pool of deployments — and the Router decides which one actually answers. This deep dive traces that decision end to end: model_name matching, multi-provider model groups, routing groups vs. access groups…
From Claude Code's 1M-token terminal refactors to Devin's fully delegated pull requests, we ranked the ten best AI coding agents of 2026 on real benchmark scores, pricing, and autonomy. Here's which agent fits your workflow — and which failure modes the demos never show you.