Writing

Tutorials and field notes on multisig wallets, self-custody, and DAO tooling, with code you can run.

Jul 14, 20268 min read

How a Multisig Wallet Actually Works

A walkthrough of the model behind Safe-style multisig wallets, a minimal Solidity implementation, and the pitfalls that make you not want to write your own.

MultisigSoliditySafeSecurity

Jun 2, 20267 min read

Self-Custody: Keys, Seeds, and Derivation Paths

What self-custody actually requires: how a mnemonic becomes an address, what you must back up, and how to verify a wallet works without a network.

Self-CustodyWalletsBIP39Ethers.js

May 18, 20268 min read

A DAO Treasury Stack: Multisig, Timelock, and Snapshot

The three pieces most DAO treasuries run on, why the delay matters, and a minimal timelock you can trace through end to end.

DAOGovernanceTreasuryTimelock

Apr 9, 20266 min read

Verify a Wallet Is Non-Custodial Before You Trust It

How to check that a wallet app cannot move your funds: contract verification, key location, offline signing, and a withdrawal test.

SecurityWalletsVerification