Calling Rust from Flutter: FRB or UniFFI?
A beginner-friendly comparison of flutter_rust_bridge and UniFFI, with small examples, practical differences, and guidance on choosing between them.
A personal blog by Yulin
Things learned while writing code.
Notes on learning, practice, and reflection. Reusable commands, code snippets, and the reasoning behind decisions.
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Engineering
Core-Variant Architecture: A Practical Pattern for Multiple Apps
Move stable business semantics into Core, leave concrete product implementation to Variant, and keep engineering independence while preserving the same business outcome.
Read the essay ReflectionSome Thoughts After Talking With Younger Students About AI, Work, and Choice
When software engineering students stand at the crossroads of graduate school, civil service exams, employment, and AI, what they may need most is not a fixed answer, but the ability to adapt to change.
Read the essayRecent Posts
14 posts.Flutter for the Interface, Rust for the Core: A Cross-Language Architecture in Practice
Starting from a Flutter app that gradually became harder to maintain, this article explains why I introduced a Rust Core, what FRB does between the two sides, and how the architecture creates clearer boundaries.
One HTTPS, Two Capture Paths: Native vs Flutter
The same goal — seeing an app's HTTPS traffic — plays out very differently on native Android and Flutter: certificate trust, traffic redirection, and hostname verification each fail at a different point. Ends with a complete reusable capture flow you can follow next time.
From Packet Capture to Dart AOT: Unpacking A/B Routing in a Flutter iOS App
How I went from a suspicious difference in app behavior to the client-side A/B routing logic using USB packet capture, remote-config decoding, and Dart AOT analysis.
Bringing AiDEX X to Loop: From Protocol Analysis to a Swift Plugin
How I worked from an Android client and a BLE protocol toward a Python reference, a Rust core, the AidexKit Swift driver, and a working LoopWorkspace integration.
From Bridge to Contract: Flutter Host and Vue H5 in Practice
A firsthand account of dividing responsibilities across a Flutter host, a contract SDK, and a Vue web app—and of handling payments, back navigation, lifecycle, startup, and updates along the way.