Saberistic Build Notes https://saberistic.com/build-notes/ Daily engineering decisions, code, failures, diagrams, and verified results from Saberistic. en-us TurboPass: removing the FFI bridge without changing the cryptography https://saberistic.com/build-notes/turbopass-rust-temporal/ https://saberistic.com/build-notes/turbopass-rust-temporal/ Sun, 30 Aug 2026 12:00:00 GMT How I rebuilt a Privacy Pass-style token server in Rust, targeted its documented API and storage contracts, and moved issuer-key rotation into durable Temporal workflows. Harness from Scratch: building the system that checks its own work https://saberistic.com/build-notes/harness-from-scratch/ https://saberistic.com/build-notes/harness-from-scratch/ Sun, 30 Aug 2026 12:00:00 GMT How I used Pi and a local Qwen model to bootstrap a TypeScript agent harness whose own task contract can block unsafe changes and produce evidence.