FullStack Bulletin

@fstackbulletin
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The (self-proclaimed) most awesome weekly #newsletter about #fullstack #web #development — Manually curated by andreaman87 & https://mastodon.ie/@loige
Websitehttps://fullstackbulletin.com
Beyond border-radius: What The CSS corner-shape Property Unlocks For Everyday UI — https://share.google/IZVbyVk32aqCViB8U
Beyond border-radius: What The CSS corner-shape Property Unlocks For Everyday UI — Smashing Magazine

For years, developers have been hacking around the limitations of `border-radius`, using clip-path, SVG masks, and fragile workarounds just to get anything other than round corners. The new `corner-shape` property finally changes that, opening the door to beveled, scooped, and squircle corners.

Smashing Magazine
Interpreting near native speeds with CEL and #Rust | howardjohn's blog
https://blog.howardjohn.info/posts/cel-fast/
Interpreting near native speeds with CEL and Rust

When building out Agentgateway, we had a desire to introduce an embedded expression language to allow users to write custom logic to be evaluated at runtime. This is tremendously useful for a variety of use cases, such as: Extracting fields to log (request.headers["user-agent"]). Evaluating authorization conditions (jwt.sub == "admin" || request.path == "/public"). Manipulating fields in requests/responses (x-llm-model: 'json(request.body).model'). and so on. This provides a powerful way to allow users to customize behavior without needing custom compile-time extensions, external callouts, or complex YAML-based configuration.

howardjohn's blog
Notes on Writing Wasm

I’ve been writing an increasing amount of Rust‑based Wasm over the past few years.

🎒 Monad Nomad
Slashing agent token costs by 98% with RFC 9457-compliant error responses
https://blog.cloudflare.com/rfc-9457-agent-error-pages/
Slashing agent token costs by 98% with RFC 9457-compliant error responses

Cloudflare now returns RFC 9457-compliant structured Markdown and JSON error payloads to AI agents, replacing heavyweight HTML pages with machine-readable instructions. This reduces token usage by over 98%, turning brittle parsing into efficient control flow.

The Cloudflare Blog
An Interactive Intro to CRDTs | jakelazaroff.com

CRDTs don't have to be all academic papers and math jargon. Learn what CRDTs are and how they work through interactive visualizations and code samples.

Design Systems Checklist.
Build Better Design Systems With This List.

https://tylercoderre.com/projects/design-systems-checklist.html

Design Systems Checklist - Tyler Coderre

A step-by-step checklist for building design systems.

MicroGPT explained interactively
https://growingswe.com/blog/microgpt
MicroGPT explained interactively

Walk through Karpathy's 200-line GPT from scratch. Tokenize names into integers, watch softmax convert scores to probabilities, step through backpropagation on a computation graph, explore attention heatmaps, and see a tiny model learn to generate plausible names.

GitHub - mcollina/skills: My own collection of skills for modern Node.js development

My own collection of skills for modern Node.js development - mcollina/skills

GitHub
Why is WebAssembly a second-class language on the web? – Mozilla Hacks - the Web developer blog

This post is an expanded version of a presentation I gave at the recent WebAssembly CG meeting in Munich. WebAssembly has come a long way since its first release in 2017. The 1.0 version of WebAssembly was already a great fit for low-level languages like C and C++, and immediately enabled many new kinds of applications to efficiently target the web.

Mozilla Hacks – the Web developer blog
Parse, don't Validate and Type-Driven Design in Rust — ramblings of @harudagondi

Applying the type-driven mindset to rust via the "Parse, don't Validate" pattern