AI Illustrating a textbook with gpt-image-1
Environment: gpt-image-1 via the OpenAI images API, 1024×1024, quality: high, background: transparent. Node.js 20, Image...
Node.js
AI 
AI Generating Kindle-ready Word files with docx-js
Environment: docx-js 9.6.1, Node.js 20, Python 3 for the post-pass. LibreOffice for verification. The files described he...
AI OpenAI’s TTS silently drops the tail of long inputs
Environment: gpt-4o-mini-tts and whisper-1 via the OpenAI HTTP API, Node.js 20, ffmpeg. Measured July–August 2026.We pro...
AI Split the word list before you generate, not after
Environment: Node.js 20, Claude Code (Opus). The allocation script is 184 lines with no dependencies.A drill book has te...
AI Don’t let the model judge difficulty: a vocabulary allow-list, checked by machine
Environment: Node.js 20, Claude Code (Opus). The checks are plain ES modules in the same repository as the manuscripts —...