solidity VS metamask-extension

Have a basic understanding of Solidity.

Solidity Solidity emerged as the first-ever programming language for smart contracts and remains the most extensively utilized language in the Web3 space due to its first-mover advantage. It serves as the primary language for developing applications today on Ethereum and Ethereum Virtual Machine (EVM) compatible blockchains, including Binance Smart Chain and Tron.

40. Solidity - $72,656

Solidity - Smart contract programming language.

The cool part is that the entire feedback process employs its own factory contract written in Solidity, without requiring you to create or maintain your own smart contract.

Inconsistent gas usage for conversion of calldata to memory in external call and internal call. · Issue #14444 · ethereum/solidity (github.com)

There is a new PUSH0 opcode that allows to directly push 0 onto the EVM stack. You can checkout the change log here - https://github.com/ethereum/solidity/releases/tag/v0.8.20

💾: https://github.com/ethereum/solidity/releases/tag/v0.8.20

In this article, we’ll explore what makes Linea so exciting. Then, we’ll walk through a tutorial on how to build a dapp on the Linea testnet. Finally, we’ll create our own cryptocurrency on Linea using Solidity, MetaMask, and Truffle: all mature ecosystem tools that are used by blockchain developers to build dapps.

Have an Ethereum wallet, preferably Metamask installed.

A  Metamask Account.

Plenty of projects are source-available, but not open source, and get tons of issues, and even contributions (https://github.com/MetaMask/metamask-extension off the top of my head)

You can create an attestation based on an existing schema or create your own. Schemas define the format in which attestations will be made, and in this case, we will use the Is Human schema to attest that the owner of a certain address is human. For this example, you only need to connect your Metamask wallet (or any wallet) to Scroll Sepolia, then enter the address you want to attest and click Make attestation. You can choose whether you want the off-chain attestation, i.e., free, obtained only by signing a transaction. Alternatively, you can choose to make it on-chain and pay for the transaction to make it public and connect it to smart contract logic. In this case, you will need to obtain funds in Scroll Sepolia through a Scroll Sepolia Faucet.

Metamask (9000 GitHub Stars) https://github.com/MetaMask/metamask-extension

For this tutorial you will need Metamask or other wallet of your choice, with Scroll Sepolia funds that you can get from a Sepolia faucet and then bridge them to L2 using the Scroll Sepolia bridge. Alternatively, you can use a Scroll Sepolia Faucet to get funds directly on L2.

16) Open Metamask app. In this instruction we will use Metamask extension for Chrome browser.

> I get a 3-5 sec lag on launch [0] as it prepares the browser to block ads.

uBO is typically ready in a fraction of second, so "3-5 sec" is not normal. In Firefox all extensions sit in the same process, so it's possible another extension is preventing uBO to be ready in a timely manner, this has happened[1].

[1] https://github.com/MetaMask/metamask-extension/issues/13163