Thoughts, stories and ideas.
A complete guide to Fastlane match and gym from scratch — certificate management, encrypted Git repos, CI/CD pipelines, multi-target signing, and hardening the security of your signing infrastructure.
How to implement certificate pinning properly in iOS — SPKI hashing, the ASN.1 header trap, rotation strategies, bypass hardening, and a production-grade pinning manager.
A deep dive into Swift's concurrency model — actors, @MainActor, Sendable, structured concurrency, and how Swift 6 enforces thread safety at compile time.
A deep dive into the self-attention mechanism — from scaled dot-product attention to multi-head projections and why positional encoding matters.
Understanding the mathematical framework behind denoising diffusion probabilistic models — the forward process, reverse process, and the connection to score matching.
Inside Reinforcement Learning from Human Feedback — reward modeling, PPO optimization, and why DPO is changing the game.
How Mixture of Experts architectures achieve massive parameter counts while keeping compute costs manageable — routing, load balancing, and the sparsity trade-off.