open-telemetry/opentelemetry-collector-contrib ? reverse-engineered prompt

Build me a working OpenTelemetry Collector setup that can receive traces, metrics, and logs, process them, and send them to a few common destinations.

I want it to be easy to run locally, with a simple config example, clear defaults, and a small demo that shows the pipeline working end to end. Include sensible components for things like receiving data, filtering or batching it, and exporting it onward. If there are recommended current settings or docs I should follow, look them up online and use them.

Please also make sure the project is cleanly organized, has basic tests, and includes enough README guidance so someone can understand how to start it, change the config, and verify it is working.