Show HN: Forge an idea into a build-ready spec, on the AI engine you have (github.com)

Hephaestus' Forge has launched a self-hosted web application that transforms initial project ideas into detailed, build-ready specifications. Using a five-phase guided interview, the app helps users refine their thoughts, leading to a comprehensive Project Blueprint, a Product Requirements Document (PRD), a Technical Specification, and accurate time estimations. Significantly, it runs on local AI engines like Claude Code and Codex, emphasizing privacy and autonomy as it does not require third-party services or telemetry, and stores sensitive data locally. This tool is particularly valuable for developers, product managers, and no-code builders, as it helps prevent inefficient coding decisions, such as choosing the wrong tech stack or solution type. By facilitating clear definitions and structuring the documentation early in the process, Hephaestus' Forge aims to save costs and reduce the number of revisions. With features like multilingual support, local hosting, and an open-source model, it fosters a collaborative environment for builders and provides flexibility to adapt to various AI environments.