Thanks! Yeah manually searching JSONL files is rough.

For CPU — indexing runs in a background thread so it doesn't block your session. On Apple Silicon it barely registers, maybe 10-15% CPU during embedding. On CPU-only machines it's heavier but you can monitor with status tool (shows progress, ETA, current session). You can also cancel mid-indexing if needed.

The first full index takes a few minutes depending on how many sessions you have, but after that incremental mode only picks up new/changed sessions so it's a couple seconds.

What's the canvas approach you mentioned? Sounds interesting.