The part you point at (or step to with the arrow keys)Light is one export: traces indigo, logs teal, metrics amber; red is refusedO sends an export over 32 MB down the HTTP lane; I runs aftertrace importBoth receivers listen on 127.0.0.1 unless you pass --listen: gRPC on 4317 and HTTP on 4318 (POST /v1/traces, /v1/logs, /v1/metrics). An export over 32 MB is refused before it is read. The HTTP body is protobuf, or JSON when the Content-Type says so; aftertrace import reads the same JSON from traces.jsonl, logs.jsonl, metrics.jsonl. Each export is flattened into one row per span, span event, log record or metric point, redacted on the way, and written to the 4 tables in one transaction.