Yes, the difference is that Twill launches dedicated infra on each sandbox for each task. This means you can work on multiple tasks requiring a DB migration for instance.

Also you can fire and forget tasks (my favorite) and don't have to keep your laptop running at night.

See also Cowork and other upcoming Anthropic features.

See also Show HN, this exact product is frequently shown as a github link.

The paradigm shift in Ai means what you are making is (1) filling a gap until the primaries implement it, most have it in their pipeline if not already (2) how easy it is to replicate with said Ai using my preferred tech stack