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Show HN: Url/sitemap/pdf/word to Markdown (feedback wanted)

Show HN: Autoliner – write a bot to control a virtual airline

Show HN: Vibedetector – detect AI tooling use in a directory

Show HN: Official Kubernetes Operator for ClickHouse

Show HN: Workflow Hub, Open library of human-AI workflows you can clone and run

Show HN: ArtCraft AI crafting engine, written in Rust

Show HN: Simple ACME v2 client for green certificates in POSIX shell

Show HN: Gryph – Audit Trail for AI Coding Agents (Claude Code, Cursor, Gemini)

Show HN: MemoryStack – Memory layer for AI agents (92.8% on LongMemEval

Show HN: I build an AI Avatar to master real spoken conversations

Show HN: AI-powered Git reports that write themselves

Show HN: File Markers – Track file status directly in VS Code's Explorer

Show HN: A different approach to intonation training

Show HN: Stelvio – Ship Python to AWS

Show HN: Investor relations platform lets investors bid on meeting the founders

Show HN: ÆTHRA – A tiny programming language for writing music as code

Show HN: Context9 – A private-first Knowledge MCP for real-time local doc sync

Show HN: ThorVG 1.0 – Fast vector rendering with Lottie and GPU backends

Show HN: Open Deep Research that beat Big Tech now self-verifies claims

Show HN: Authnkey – Android credential provider with FIDO2 support via NFC