RYUN Engineering & Research
Blog & Engineering Notes
Things we built, measured, or got wrong. Written by the developer, dated, and updated in place when code or benchmarks change.
Articles (2)
#BYOK·9 min
How to Run AI Mock Interviews With the STAR Method (Using Your Own API Key)
Proprietary interview prep platforms charge $25 to $50 per session for AI coaching. Learn how the STAR method rubric works and how Ravina lets you practice behavioral mock interviews with your own OpenAI or Gemini API key for pennies.
Oct 21, 2026Read
·9 min
Why Bring-Your-Own-Key (BYOK) Architecture Protects Candidates from AI Training Loops
When candidates upload resumes to closed AI SaaS platforms, personal salary history and patent drafts often enter fine-tuning pipelines. Here is how direct client-side BYOK API calls enforce enterprise zero-retention policies, reduce audit costs to $0.003, and protect candidate privacy.
Oct 15, 2026Read