Rust Crate Developers

Carl Lerche (creator of Tokio, former Ruby on Rails core team) just posted a Topcoat 0.9 update. Worth reading for the author background alone. 🦀 The pitch: make building web apps with Rust as productive as Rails. From someone who's actually done both. What's new in 0.9: Shards : server components that re-render when browser-side signals change. Type a character in a search box, the browser sends the signal value, the server re-runs the component against the database and sends back updated HTML. No API layer, no client state management. Server-push via WebSocket : a live! macro and emit! for streaming UI updates over long-lived connections. Progress bars, chat messages, real-time dashboards, all from the server, in Rust. Signal-based reactivity without roundtrips : simple state like counters and toggles runs as transpiled JavaScript in the browser. Server roundtrips only happen when you actually need the database. Toasty (the ORM) also got substantial updates: update! macro : toasty::update!(user { name: "Alicia", login_count.increment() }) compiles to a single SQL UPDATE with SET login_count = login_count + 1. No load, no save. Document fields : #[document] on a struct field maps it to JSONB in PostgreSQL, with typed filter support: User::fields().settings().theme().eq("dark"). Polymorphic relations via enums owner: Owner where Owner is User or Team, handled with #[shared] and #[belongs_to] annotations instead of awkward workarounds. The closing paragraph is the most honest thing in the post: "I don't know where we are going. The world of software engineering is completely different every three months." 🔗 tokio.rs/blog/2026-09-24-top… #RustLang #WebDev #Tokio #FullStack #OpenSource

"I love Rust! Rust is amazing ...if you never, ever, EVER have to look at it yourself." @dhh

Today, we’re announcing Ternary Bonsai 2 27B. Based on Qwen3.8 27B, Bonsai 2 27B is 9x smaller than its full-precision counterpart while retaining 98.2% of its aggregate benchmark performance. Two months after the first Bonsai 27B release, the biggest change is quality. The footprint remains 5.9 GB, but the gap to full precision has narrowed materially, with particularly strong gains in agentic coding, multimodal reasoning, and long-horizon tool use. Ternary Bonsai 2 27B is available today under Apache 2.0.

Went back and finished my Viewstamped Replication implementation in Rust. Protocol only, I/O is provided by the caller. Verified with a TigerBeetle-style simulator. Now thinking about doing some verification with Lean... github.com/penberg/vsr-rs

To show how much I care about performance, I just ordered the worst specced 2020 Intel MacBook Air I could find (i3, 1.1 GHz, 8 GB RAM). It is the last supported hardware for macOS 15, our min target for Superlogical. Going to optimize on it for worst-case behavior.