[zellyn]

LD actually releases a crazy amount of stuff as open source. In addition to the Relay, the server SDKs are all open source too.

In fact, their entire API for flag manipulation and definition (essentially all the operations you can do with their UI, but programmatically) is open too: https://app.launchdarkly.com/api/v2/openapi.json

One could imagine running an OpenAPI → Go/Java/Rust/Python/etc. code generator on their OpenAPI spec, and then gradually implementing their entire API as open source.

Not sure how they would feel about that… although I suspect more usage of an LD-compatible API would only be good for them.

Of course, it makes sense for all those things to be open. The majority of smaller startups they're competing against will have settled on OpenFeature. DataDog too releases some equivalently surprising things as open source: eg. https://vector.dev/