We open sourced a *really fast* HTML artifact builder. It's powered by libfx, making the agent durable. Building the low-level plumbing for v0 to survive server crashes, flaky LLMs, function limits was a huge pain. Now it's easy, free, and OSS: http://fx0.vercel.dev. PS: I built this floating container in a few minutes… it's delightful, and it's just HTML!