TL;DR. golang.org/x/net/idna.Lookup.ToASCII runs UTS-46 NFKC mapping 0-9. A pre-IDNA net.ParseIP check rejects the NO_PROXY lists, TLS-SNI routers, and cookie-domain validators that TrimRight + ParseAddr golang.org/x/net/http/httpproxy, the canonical safe pattern, and two I ran into this one while writing a Go HTTP client for a private project. I idna.Lookup.ToASCII canonicalising the host The sha
By Q2 2026, engineering teams building local Retrieval-Augmented Generation (RAG) pipelines will waste $47M annually on managed vector databases they don't need – and Pinecone 2.0's 300% price hike over its 1.0 release is the biggest culprit. VS Code inserting 'Co-Authored-by Copilot' into commits regardless of usage (842 points) A Couple Million Lines of Haskell: Production Engineering at Mer