OpenAPPA: Deterministic Guardrails for AI Agents

A close look at Sayso's per-platform speech engines, model choices, AI post-processing, and the Linux and privacy trade-offs to check before you rely on it.

One documented open source studio, a feature list that overlaps with part of a paid creative suite, and the checks to run before you trust any 'Rust alternative' label.

After a 100,000-line LiteLLM wrapper and an upgrade that broke production, Respan rewrote its gateway around an Nginx-style core. We walk through the request path, passthrough rules and the trade-offs of a pre-alpha plugin system.