Universal Upgradeable Proxy Standard UUPS ERC-1822 Tutorial and Complete Working Example

The first time I had to implement a UUPS proxy I found no clear example anywhere on the Internet. There are many trial implementations and even builders that enable one to implement a proxy in the background. It is …

Collective Governance 0.9.8 is deployed on Sepolia TestNet.

Sepolia TestNet

Collective Governance is a smart contract that allows communities to decide outcomes on-chain. Collective Governance is also designed to …

Unifi UDM-SE Adblocker

How to setup Pi-hole style blocklist on Unifi

1. Download Fetch AdBlocker
2. ssh to root@udmse
3. Enable /etc/dnsmasq.d,*.conf in dnsmasq.conf
4. Run the update_blocklist.sh script
5. Restart or reset dnsmasq

You now have a pi-hole style config on unifi dream machine.

Full video on YouTube …

Introduction to proofs of knowledge - journal club - part 2

A proof of knowledge is a proof in which a prover can convince a verifier that it knows a secret. Typically the goal is to do so without revealing the secret which arrives at zero knowledge being expressed by the proving …

Commit signature verification is a way of ensuring that the commits you make or receive are authentic and have not been tampered with. By signing your commits with a cryptographic key, you can prove that you are the author of the code and that no one else has modified it …

Grep-Fu

Custom errors are a feature of Solidity that allow you to display error messages to the user in a convenient and gas-efficient way. They are declared in the head of the contract and called after a revert statement.

error Unauthorized();
if (msg.sender != owner()) {
  revert Unauthorized();
}

However, a challenge …