#922 Improve demo CLI UX with progress bar and graceful delete Pull request opened by pingsutw Summary • Add a rich progress bar with spinner, step descriptions, and elapsed time for

flyte start demo

• Show a styled summary panel with UI/registry URLs on completion • Fall back to plain text output when

--log-format json

is used (CI-friendly) • Print simple status message in dev mode instead of full readiness panel • Add

--volume

flag to

flyte delete demo

to optionally remove the Docker volume • Make

flyte delete demo

graceful when container or volume doesn't exist (no errors) Test plan Screenshot 2026-04-08 at 12 11 43 AM Screenshot 2026-04-08 at 12 12 54 AM Screenshot 2026-04-08 at 12 51 47 AM • Run

flyte start demo

and verify progress bar renders correctly • Run

flyte start demo --dev

and verify "Flyte dev cluster is running." message • Run

flyte --log-format json start demo

and verify plain text output • Run

flyte delete demo

when cluster is not running — should not error • Run

flyte delete demo --volume

— should delete volume after stopping container • Run

flyte delete demo --volume

when neither exists — should show yellow warnings, no errors flyteorg/flyte-sdk