Quant systems, AI agents, and a GPU homelab - documented honestly, including what failed.https://arknodelabs.com/en-ushttps://arknodelabs.com/experiments/gpu-passthrough-lxc/https://arknodelabs.com/experiments/gpu-passthrough-lxc/Four identical RTX 5060 Ti cards, one Proxmox container, and a PCIe lane map that quietly decides which card is allowed to talk to which. The passthrough was the easy part.Tue, 11 Aug 2026 00:00:00 GMThomelabhttps://arknodelabs.com/experiments/backtest-lookahead-bug/https://arknodelabs.com/experiments/backtest-lookahead-bug/Our Chandelier exit peeked one bar ahead, cutting winners short instead of inflating the result. A fixed backtest is not a found edge: ETH 4h went from -16.2% to +185.0%.Fri, 03 Jul 2026 00:00:00 GMTtradinghttps://arknodelabs.com/experiments/polymarket-postmortem/https://arknodelabs.com/experiments/polymarket-postmortem/Aggregate Brier score 0.12. And it lost to the market in every single edge bucket. A postmortem of an LLM forecaster that turned out to be an expensive mirror.Sun, 07 Jun 2026 00:00:00 GMTtradinghttps://arknodelabs.com/experiments/ai-homelab-mistakes/https://arknodelabs.com/experiments/ai-homelab-mistakes/Three planning mistakes, one invisible GPU, and seven months of running a 64GB-VRAM box that ended up doing a completely different job than the one I built it for.Mon, 01 Dec 2025 00:00:00 GMThomelab