Open-Source Local Siri Replacement for Phones and Smart Speakers

C6/10May 12, 2026

WhatA fully on-device voice assistant stack combining speech-to-text, a tiny tool-calling model like Needle, and text-to-speech to handle timers, weather, smart home, and messaging without any cloud dependency.

SignalMultiple commenters independently converged on the same idea — using this model as a Siri-like core — revealing deep frustration with existing voice assistants that are slow, privacy-invasive, and unreliable when offline.

Why NowApple's Siri remains widely mocked despite years of promises, Google Assistant is being gutted in favor of Gemini, and for the first time a 14MB model can credibly handle the structured-command portion of a voice assistant.

MarketConsumer voice assistant market ($12B+ by 2027); potential buyers are smart speaker OEMs, privacy-focused phone makers (e.g., Murena, Pine64), and hobbyist Home Assistant users; gap is no good open-source offline voice assistant exists.

MoatCommunity-contributed tool definitions and fine-tuning datasets for regional services, smart home brands, and niche use cases create a long-tail ecosystem moat.

Show HN: Needle: We Distilled Gemini Tool Calling into a 26M Model View discussion ↗ · Article ↗ · 536 pts · May 12, 2026

More ideas from May 12, 2026

Open Source Compliance Auditing for Hardware CompaniesP5/10An automated SaaS platform that continuously monitors hardware companies' firmware and software for open source license compliance, alerting them to violations before they become PR disasters.

Privacy-First Local Network 3D Printer ManagementC6/10A polished, self-hosted print management platform that provides Bambu-cloud-level convenience (remote monitoring, queue management, multi-printer orchestration) entirely on a local network with no cloud dependency.

Curated Open 3D Printer Recommendation EngineC5/10A decision-engine website and newsletter that recommends 3D printers based on openness, repairability, and privacy scores alongside traditional specs like speed and quality.

Multi-Toolhead 3D Printer Middleware PlatformC6/10A firmware and software stack purpose-built for toolchanger 3D printers that handles automatic tool calibration, multi-material print planning, and waste-minimizing tool path optimization.

AI-Native Language Migration Tool for CodebasesP6/10A tool that automatically migrates Python codebases to performant compiled languages (Rust, Go) while preserving correctness, using AI to handle the translation and generate comprehensive test suites.

AI Code Complexity Controller and Abstraction EnforcerC7/10A developer tool that sits alongside AI coding agents to enforce code quality standards, detect non-idiomatic patterns, control complexity, and ensure AI-generated code uses proper abstractions instead of brute-force solutions.