Run in this tab Flow · WASM jobs, in your browser
The pipeline's jobs in a runtime "wasm" sandbox run here as a runner's WASM tier runs them: this tab fetches main's files, and a worker runs each job's modules with them at /src, its arguments and environment, with no network and nothing of your computer. Nothing is reported to the hub: the tab shows the tier works in a browser, before a tab can take jobs as a runner (OxygenFlow #80).
The pipeline on main has no WASM jobs (a sandbox with runtime "wasm").