HackWhisper Lets Developers Ask Hacktoberfest Questions by Phone

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HackWhisper is an open-source, AI-powered inbound voice assistant built in Python during Hacktoberfest Hack Day Islamabad 2026. Callers dial a phone number and ask Hacktoberfest questions in natural speech, with no need to search documentation or FAQs. Whisper transcribes the speech, relevant Hacktoberfest information is retrieved from a knowledge base, and Gemma 4 generates a response that is converted back into audio for the caller. The project also uses Graphify to visualize its architecture, and its code is publicly available on GitHub so developers can extend it to other documentation-based applications.

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The Candle: a browser ghost story powered by Gemma 4 and an open-weight model

A developer built The Candle, a browser-based haunted-room game entered in DEV's Hacktoberfest Open-Source AI Challenge, themed "Ghost in the Machine." Players blow into a microphone or hover the cursor to extinguish a candle, after which a ghost answers in the dark. Each of five ghosts has its own voice, backstory, and secret, and players unlock the house's story by picking reply options and questioning the right ghosts. Gemma 4, accessed through Backboard and OpenRouter, generates the ghosts' lines and reply choices, while ElevenLabs provides voices with a Piper fallback. The project is open source under the MIT license, with the code and a live demo available.

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ProgrammingDEV Community ·

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ProgrammingDEV Community ·

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ProgrammingDEV Community ·

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