Author here. Quick context: the tablet is a 2021 Fire HD 10 that ran my Home Assistant dashboard and kept powering itself off: the logs showed Amazon's own software issuing the shutdowns, and the only permanent fix was root, which has never existed publicly for this model. Anthropic's and OpenAI's cyber safeguards wouldn't touch the project. Moonshot's Kimi K3 found an unpatched 2022 Mali CVE (CVE-2022-38181: fixed upstream in 2022, patched by Amazon in 2024, but my firmware never got it), GLM-5.2 caught two fatal bugs in the exploit, and GLM-5.3 finished it in a day. The full technical write-up with every offset and dead end is HANDOFF.md in the repo. Happy to answer questions: especially about the model-steering side, which was most of my actual contribution.