Queue-based actions
Sandbox `start`, `stop`, and `delete` actions are queued. While a sandbox has a queued or running operation, Nostate hides conflicting actions and shows loader state instead.
This protects the sandbox from overlapping lifecycle requests.
Delete behavior
Delete is destructive. After you confirm it, the delete request is queued and the card remains visible with a busy state until the backend reports completion.
When the operation finishes successfully, the sandbox disappears from the active list.
Preview and live runtime
Each sandbox card includes a live iframe thumbnail preview. Nostate also exposes a refresh control to force a new thumbnail load.
If preview rendering fails, the sandbox card still remains usable and the action controls continue to work.