On-chain code doesn’t forgive messy control flow. academy.extropy.io/pages/cou… Mutable loops and ignored errors don’t just slow you down, they make state harder to reason about. This session focuses on Rust’s data-flow model: iterators, closures, collections, and explicit error handling.

Most bugs aren’t logic errors. They’re missing types. If your data model is vague, your code will lie at runtime. Structs. Enums. Traits. Compile-time truth, not runtime hope. Module 3 of our free Rust course 🦀Types & Traits, is live: academy.extropy.io/pages/cou…

Moon Maths is live on Giveth. giveth.io/project/the-moon-a… If you’ve ever wanted ZK explained like a map (not a wall of symbols), this is the project: open-source, free, narrative-driven. If it’s useful to you, consider funding the next chapters: Finite Fields → Groth16.

Our Rust Session 2 is live: Ownership & Memory Safety. 🦀: academy.extropy.io/pages/cou… This is the Rust “click” moment, the rules that give you memory safety without a GC: - ownership - borrowing - slices If Rust has ever felt weird, this is probably why (and how it becomes powerful).

Audits shouldn’t be “PDF delivered, good luck.” We work closely with your team through remediation and share resources so you ship stronger. 🤝 ✅DM us or request an audit: security.extropy.io

Chapter 2 is live: Polynomials in the Bay of Rainbows. 🌈 moonmaths.xyz/chapter-2.html We made it to Sinus Iridum. A glowing curve on the lunar horizon. A simple object hiding a lot of power. A verifier who refuses to be told what to trust. #zeroknowledge

$3B lost in 2025 and a lot of it came from the same few failure modes. We wrote up what we keep seeing in audits (Move/Solidity/ZK systems) and what teams should harden first in 2026. security.extropy.io/articles…

We’re starting the Moon Math journey around ZKPs. Chapter 1: Sea of Tranquility, privacy vs verification problem, plus the core rules of ZK. 🌚hackmd.io/@Extropy/MoonAndMa…

Rust Fundamentals is live on Extropy Academy. Module 1 is out now. More modules coming soon — including the Rust brain-shift: ownership & borrowing. academy.extropy.io/pages/cou…

Module 1 of our Rust for Blockchain Developers course is now live on Extropy Academy. 🦀 ✅We start with the essentials: why Rust, core types, immutability, shadowing, control flow, and more: academy.extropy.io/pages/cou…

Extropy Academy small update, big usability win: Resources → Explore by Topic. It’s basically the “show me the good stuff” button. ✅academy.extropy.io/pages/res…

MEV arbitrage in 2025 isn’t “write a bot.” It’s market design: - Ethereum sells ordering via sealed-bid block auctions. - Solana turns it into a latency race with off-chain tips. - Optimism/Base rewards flooding the sequencer with duplicates. - Starknet’s ZK + Cairo creates a temporary moat. We mapped the 4 regimes + what they imply for costs, bot ecology, and who captures the profit. academy.extropy.io/pages/art…

Tired of API keys and awkward subscription billing for your AI apps? Our new developer guide shows how x402 turns HTTP 402 into a real payment rail: one line of middleware, an on-chain pay-per-request flow, and EIP-3009 for gasless micropayments. ✅academy.extropy.io/pages/art…