Captain Arni's workshop
Notes on agentic coding, experiments with local AI, and small browser games, all served from a Raspberry Pi.
Latest posts
threadfall: A Platformer Built and Tested by Agents
A felt-puppet platformer in three.js, written by Claude Code and checked without anyone playing it by hand: a deterministic simulation, input scripts, a route search and chapter proofs, with every picture, clip and track made on one local GPU.
One GPU, Four Tenants: How My AI Hub Shares 32 GB
A local coding agent, image and video renders, speech and music, all on one RTX 5090. Claims with sizes, a lent engine slot, a park that hands the engine back exactly as it was, and why a memory reading taken afterwards is the wrong size.
FLUX 3 Klein: int8 vs bf16
Same prompts, same seeds, int8 against bf16. Tap any picture to switch. int8 lost nothing I could see, and it was twice as fast.
My GPU Workstation in My Pocket: Sleep, Wake and Work From My Phone
I put my PC to sleep from my phone, leave the house, wake it from anywhere and keep working: coding agents, local LLMs, image and music generation. Here is what my AI Hub does and how the pieces fit together.
Self-Hosting on a Raspberry Pi Without Opening a Port: A Cloudflare Tunnel and Access Guide
A step-by-step guide to serving a public site and private apps from a Raspberry Pi at home, with a Cloudflare Tunnel instead of port forwarding and Cloudflare Access instead of your own login page, plus the gotchas that cost me the most time.
