Learn how to build a QLoRA fine-tuning dataset for language models in this comprehensive video tutorial. Explore various Reddit dataset options, including torrent files, Archive.org, and BigQuery. Follow step-by-step instructions on exporting BigQuery Reddit data, decompressing gzip archives, and recombining archives for target subreddits. Discover the proper data structure, build training samples, and save them to a database. Create customized training JSON files and dive into QLoRA training and results. Gain valuable insights into dataset building for fine-tuning language models through practical demonstrations and explanations.