☕️ AWS Lambda now runs 90-minute functions

Hi there, this is your daily ☕️ DevShot.

In today's DevShot:

⚡ AWS Lambda now runs 90-minute functions

🦀 Cloudflare saves 100TB of RAM with Rust

🎮 Unity ships official AI coding plugins

💧 Bun's Rust rewrite eliminates numerous memory leaks

🤖 Google's Agent Kit comes to Kotlin

Plus: 🎁 6 other news you might like, 🛠️ 5 tutorials, 🧰 7 tools, and 📚 5 papers.

• AWS Lambda functions running on Managed Instances can now execute for up to 90 minutes, a sixfold jump from the old 15-minute cap, though traditional synchronous requests keep the shorter limit.
• The longer runtime suits media processing, ETL, AI inference, and large file transfers, but demands care with network connections and temporary credentials staying valid for the full duration.
• Because Lambda still doesn't guarantee exactly-once processing and the retry window widens, AWS urges developers to build idempotency using Powertools for operations like payments or database writes; the change works in all regions where Managed Instances exist.

• Cloudflare reclaimed over 100TB of RAM globally by tuning the consistent-hashing algorithm inside its Pingora-based Backend Router, whose pingora-ketama structures were consuming far more memory than the load-balancing service actually needed.
• One fix packed the hash-and-index struct into a raw byte array with getters, sidestepping Rust's alignment rules that had inflated each entry to eight bytes, cutting consistent-hashing memory by 25% without resorting to `#[repr(packed)]`.
• A deeper derivation of the error margin showed the team could generate 90% fewer hashes per server with no meaningful loss in distribution, and they rolled the new ring out gradually to avoid invalidating cached content and flooding origins.

• Unity has shipped official plugins that connect Claude Code and OpenAI's Codex to the engine, giving those coding agents skills authored and maintained by Unity's own teams instead of scraped forum posts and tutorials.
• The Codex plugin launches with 31 skills spanning UI, 2D graphics, the URP render pipeline, audio, navigation, physics, in-app purchases, multiplayer, and localization, including setup for new projects and migration of older ones to URP.
• Both plugins require Unity 6 or later; Codex installs with a single click from its plugin directory, while the Claude Code version installs via npm, aiming to stop agents from generating code targeting outdated engine versions.

• Bun's runtime, bundler, and package manager have been rewritten from Zig to Rust, shipping in v1.4.0 and clearing 128 longstanding bugs by leaning on Rust's borrow checker and RAII cleanup to kill memory-safety faults.
• Creator Jarred Sumner ran the AI-assisted port in four months using pre-release Claude Fable 5 across roughly 50 workflows and 64 parallel instances, validating against a TypeScript test suite of over a million assertions at a cost of $165,000 in tokens.
• The Rust build stabilized a 2,000-operation bundling test at 609 MB instead of climbing past 6.7 GB and lifted HTTP throughput 2-5%, though 19 semantic regressions surfaced and Zig creator Andrew Kelley criticized merging a million lines of unreviewed transpiled code.

• Google has released the Agent Development Kit for Kotlin 1.0, a production-ready framework for building AI agents across Kotlin, Android, and JVM/server apps that reaches feature parity with the existing Python and Java versions.
• Built on Kotlin Multiplatform, it declares tools via annotations that KSP turns into function schemas at compile time rather than runtime reflection, and supports hierarchical multi-agent delegation, session serialization, context compaction, and Java interop.
• Android-native features let agents mix on-device and cloud inference through LiteRT-LM, ML Kit (beta), and Firebase AI Logic, while human-in-the-loop workflows require explicit confirmation before sensitive actions like a bank transfer run.