Every API with more than a handful of consumers eventually faces the same problem: an endpoint or field you designed
Continue readingDeprecating API Endpoints Without Breaking Consumers: Deprecation and Sunset Headers
For most of Python’s history, the answer to “can I use threads for CPU-bound work?” was a firm no. The
Continue readingPython’s GIL Is Now Optional: What Free-Threaded Python 3.14 Means for Your Code
JWTs are everywhere because they solve an ugly problem: how does a stateless service know who’s calling without a database
Every PostgreSQL backend process is a full Unix process with its own megabytes of memory. That design choice buys you
When an LLM serves a 2,000-token response to a prompt of 10,000 tokens, it does something that looks absurd from
Continue readingPagedAttention and the KV Cache: How OS Paging Explains Modern LLM Serving
Every Prometheus failure I’ve seen in production started the same way: someone added a label. A user ID on a
Every RAG system has two halves: a retriever that decides which text the model sees, and a generator that answers
Continue readingRAG Chunking Strategies in 2026: What the Benchmarks Actually Show
At 02:14 on a Sunday, an alert fires: payment success rate dropped four percent. You run kubectl logs across a
Here is a debugging story that repeats across every gRPC team. A developer runs grpcurl -plaintext localhost:50051 list against a
Continue readinggRPC Server Reflection in Production: Gate It, and Use Health Checks Instead
If you run a large language model behind a product, you have probably internalized an uncomfortable trade-off. The big frontier
Continue readingLLM Routing and Cascading: Send Every Query to the Cheapest Model That Can Handle It