The Developer Beta Recruitment

We need beta testers for a developer product: [WHAT THE PRODUCT DOES, WHAT STAGE IT IS REALLY IN, WHAT FEEDBACK WE NEED MOST, WHAT TESTERS GET - EARLY ACCESS, PRICING, SWAG, A LINE TO THE TEAM]. Write the recruitment: the call that filters for builders who will actually integrate (a real use case required, not a signup form), the honest 'what is broken' list that builds trust with exactly the right people, the time commitment stated, the feedback channel with a human on it, and the public changelog promise that keeps them engaged.