Yos Riady

Why onchain teams need unified wallet, product, web, and blockchain analytics to understand users, improve conversion, and grow.

This article was originally posted on the Formo Blog.

A practical guide to onchain product analytics, attribution, retention, user segmentation, and measuring sustainable growth in web3.

This article was originally posted on the Formo Blog.

Why consumer crypto, stablecoins, prediction markets, scalable blockchains, and better user experiences are bringing more activity onchain.

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Learn how to replace deployed Solidity contract bytecode in local tests so hardcoded external dependencies can be mocked and controlled.

What if there is a hardcoded contract address in another contract you need to test?

Learn how to preserve and bubble revert reasons and custom errors through low-level Solidity call and delegatecall operations.

Let’s say that you have a contract A which makes a low-level call or delegatecall to another contract B: contract A { function foo(address target, bytes data) external { (bool success, bytes memory result) = target.delegatecall(data) // used to call…

A hands-on guide to finding smart contract vulnerabilities with Slither static analysis and Echidna property-based fuzz testing.

The goal of smart contract audits is to assess code (alongside technical specifications and documentation) and alert project team of potential security issues that need to be addressed to improve security posture, decrease attack surface, and mitigate ris…

How to create instant mocks for Solidity smart contract tests from a contract ABI with Waffle or Smock, without writing mock contracts by hand.

In a previous post, we learned about forking mainnet as an alternative to mock contracts in Solidity.

How to develop and test Solidity smart contracts against live DeFi protocols by forking Ethereum mainnet with Hardhat, instead of writing mock contracts.

Ethereum and other permissionless blockchains are innovation machines.

Practical Solidity gas optimization techniques, including efficient storage layouts, data types, function design, and compiler choices.

Computations on Ethereum cost gas.

A monthly roundup for July 2020 of reading on startups, product-market fit, Ethereum and DeFi, AMMs, cognitive biases, and software engineering.

Recently is a periodic retrospective.

How to build fault tolerant Solidity smart contracts with the circuit breaker pattern, try/catch error handling, and graceful degradation in DeFi.

A guide to unit testing Solidity smart contracts with TypeScript and TypeChain, including helpful assertion tools and testing best practices.

Why Ethereum smart contracts are not self-executing, and how to automate them with serverless functions using the open source serverless-ethers project.

A monthly roundup for February 2020 on patronage tokens, social money, the creator economy, the history of money, and public speaking.

An abridged explanation of how money emerged from an initial state of barter, with material from the book Choice: Cooperation, Enterprise, and Human Action by Robert Murphy.

A lightweight version of Jörg Guido Hülsmann's The Ethics of Money Production.

A lightweight summary of Hayek's Use of Knowledge in Society.

A short reflection that quotes the Seikilos epitaph, an ancient Greek song, with its message to shine while you live because life is short.

An explanation of the emerging digital finance stack, without the jargon.

Security, architecture, testing, and deployment best practices for building reliable Ethereum smart contracts in Solidity.

How to verify Solidity smart contracts on Etherscan, using Hardhat or Truffle plugins or by flattening contracts and publishing the source manually.

How the wrapped token design pattern extends existing ERC20 tokens and ETH with new functionality, with examples of wrapped tokens on Ethereum.

A look at Patronage Collectibles, a Singapore National Blockchain Challenge winner that uses Harberger taxes and crypto collectibles for crowdfunding.

An introduction to Patronage Markets, a cryptoeconomic system on Ethereum where creators issue personal tokens that patrons collect, redeem, and trade.

How deplatforming threatens crowdfunding and subscription patronage for creators, and why decentralized protocols can replace platforms like Patreon.

The launch of Web3 Singapore, a meetup for developers to learn Ethereum smart contracts and build dApps, and why the crypto winter is the time to BUIDL.

How blockchain and crypto collectibles change art through digital scarcity, provenance, new marketplaces, royalties, and fractional ownership.

A guide to Ethereum ERC standards beyond ERC20, covering token standards, introspection, decentralized identity, recurring payments, and meta transactions.

An overview of three utility token models (protocol, platform, and governance tokens) and how real crypto projects create token sinks to sustain value.

An explanation of Harberger taxes, the self-assessed property tax from Radical Markets, and how to implement it with Ethereum smart contracts.

How to sign and verify Ethereum signatures for off-chain computation, with use cases in decentralized exchanges, state channels, and meta transactions.

A guide to token bonding curves, continuous tokens, and their use as automated market makers and in continuous organizations on Ethereum.

A tour of Ethereum security token standards such as ST-20, R-Token, ERC-1400, and ERC-1404, and how they handle KYC, whitelisting, and transfer rules.

How to upgrade immutable Solidity smart contracts using circuit breakers, hub-and-spoke, registries, and proxy patterns such as AdminUpgradeabilityProxy.

A guide to common Solidity smart contract vulnerabilities, such as reentrancy and overflows, and the defensive programming techniques that mitigate them.

A curated map of the 2018 serverless ecosystem, covering monitoring and observability tools, serverless frameworks, and FaaS platforms like AWS Lambda.

Best practices for API developer portals, including guides, client SDKs, API reference, API explorer, changelog, support, and status pages that drive adoption.

How schema-first API design creates a shared contract, enables automated tooling, and keeps documentation, clients, and servers aligned.

A hands-on guide to Go on AWS Lambda: learn Go basics, then build and deploy a serverless CRUD API with the Serverless framework.

Why serverless computing matters: how software moved from managing physical web servers to the cloud, and how serverless removes server operations work.