Logs

EffectStream sends logs by default to a Open Telemetry Collector.

Local Viewer Storage

When you run packages/build-tools/tui/src/logs-standalone.ts (used for the standalone log viewer/TUI), it now writes rotating log files under ${INIT_CWD}/logs by default, where INIT_CWD is the directory that started the process. That means the log directory is colocated with whatever project or script launched the viewer.

If you want to store the viewer logs elsewhere, set LOGS_PATH in the environment before launching the viewer. LOGS_PATH takes precedence over the default paths and can point to any directory you control.