--- title: "BakeApp" description: "An in-development native Apple sourdough planner with a Rust engine for formulas, scheduling, persistence, export, media, and CloudKit transport." url: "https://briansunter.com/projects/bakeapp" --- Jul 19, 2026 In development Status checked Sep 15, 2026 # BakeApp An in-development native Apple sourdough planner with a Rust engine for formulas, scheduling, persistence, export, media, and CloudKit transport. [View Source](https://github.com/briansunter/native-sourdough) Rust Swift SwiftUI SQLite CloudKit  ## Overview BakeApp is an offline-first native Apple baking planner for sourdough. Rust owns the product engine: formula calculation, scheduling, starter history, state transitions, SQLx/SQLite persistence, portable data, media registration, and synchronization semantics. Swift owns SwiftUI presentation and Apple frameworks. The Rust workspace is fully testable without Xcode. ## Features - Starter feeding and history tracking - Backward bake planning from a desired bake time - Notification intents and idempotent bake events - Hybrid Logical Clock (HLC) remote merge semantics - Portable JSONL/ZIP backup preview and export - Staged, content-addressed media storage - App Group snapshot consumed atomically by widgets - CloudKit as a Swift `CKSyncEngine` transport over Rust-owned envelopes ## Technology Stack - Rust product engine (SQLx/SQLite persistence) - UniFFI-generated bridge + XCFramework - SwiftUI app shell - CloudKit `CKSyncEngine` sync transport - App Group widget snapshots ## Availability The current repository and release runbook describe internal TestFlight distribution only; no public App Store release was verified during this audit. ## Share this project