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What does it take to build a fully functional (and actually usable) voice assistant that runs on a Raspberry with FOSS? This talk describes the journey from the idea to Version 1.0 (and beyond).\n\nIt has to be a HAL9000 - the enclosure for my cloud-free digital voice assistant. The personal project is based on FOSS and runs on a Raspberry Pi Zero2 W in combination with a RP2040 (with a small display showing an animated HAL eye and a small GUI).\n\nI will talk about:\n* design decisions (and changes),\n* the system architecture,\n* why which software components were chosen,\n* highlight some interesting hardware and software aspects and\n* quickly show how the 3D model for the enclosure was created with OpenSCAD. \n\nHAL will talk about:\n* the 9000 series,\n* the AE-35 unit,\n* ...and whatever else the demo gods will allow.\n\nThis talk should also serve as a crash-course into the (basic) technology of digital voice assistants - stuffed with information (and anecdotes) about the hardware, software and the 3D-printed enclosure.\nabout this event: https://pretalx.c3voc.de/camp2023/talk/AUN3FY/