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🪐 What’s happening in tech today, March 24, 2025?

The HackerNoon Newsletter brings the HackerNoon homepage straight to your inbox. On this day, Mac OS X is Born in 2004, and we present you with these top quality stories. From Want To Win Your Share of $2000? Tell Us How Your Hardware Can Power Aleph Cloud’s DePIN to Ethereum Block Building: The Hidden Economy Behind Every Transaction, let’s dive right in.

The Market Today

#01

Instagram (Meta)

596.25 +2.15%

#02

Amazon

196.21 +1.69%

#03

Facebook (Meta)

596.25 +2.15%

#05

Coursera

7.13 +1.26%

#01

Bitcoin

$88094.35 +3.66%

web3

Ethereum Block Building: The Hidden Economy Behind Every Transaction

TL;DR Explore how Ethereum’s block-building process has evolved with MEV and Proposer-Builder Separation, reshaping decentralization, fairness, and transaction orderi

By @varunx [ 11 Min read ]

This post will discuss how Ethereum Block Building has evolved along with the introduction of Proposer Builder Separation and future research.

Ethereum organizes time into discrete units:

Each committee:

In each slot:

Some points to keep in mind

The proposer’s role is crucial as they:

High-priority transactions.

FOCIL..

web3

Want To Win Your Share of $2000? Tell Us How Your Hardware Can Power Aleph Cloud’s DePIN

TL;DR HackerNoon’s #blockchain Writing Contest offers a $2,000 prize pool, including $300 for the best DePIN story.

By @hackernooncontests [ 2 Min read ]

For a chance to win from a $2,000 prize pool, the #blockchain Writing Contest welcomes writers, developers, and industry experts to discuss how decentralized technologies—#decentralized-ai, #decentralized-cloud, and #dePIN—are transforming tech scaling, user interactions, and data management.

Good luck, we can’t wait to read your drafts!..

Your AI Is Only as Smart as Its Data—And Humans Are Still the Best at Labeling It

The consensus method plays a key role in data annotation when it is necessary to ensure high accuracy and reduce subjectivity in labeling.

By @keymakr [ 5 Min read ]

programming

Building a Robust JS/TS Monorepo: Best Practices with Yarn, NX and Changesets

TL;DR Build a robust JS/TS monorepo with Yarn v4, NX Changesets. Organize apps, features libs, and automate CI/CD for efficient development workflows.

By @teimurjan [ 22 Min read ]

Note: Throughout this article, whenever "Yarn" is mentioned, it specifically refers to Yarn v4—the latest version offering enhanced capabilities and improved performance.

Workspaces are the packages of the monorepo, often called packages. They help you manage multiple packages in a single repository effortlessly. With workspaces. you can:

Accelerate Installations:..

tech-stories

What to Do When ‘Fair’ AI Delivers Unfair Results

TL;DR Discover how SA-DRO reduces bias in fair machine learning models by addressing demographic parity flaws.

By @demographic [ 5 Min read ]

Abstract and 1 Introduction

2 Related Works

3 Preliminaries

3.1 Fair Supervised Learning and 3.2 Fairness Criteria

3.3 Dependence Measures for Fair Supervised Learning

4 Inductive Biases of DP-based Fair Supervised Learning

4.1 Extending the Theoretical Results to Randomized Prediction Rule

simplfy

Authors:..

web3

Solidity Is to Ethereum What Tact Is to TON — How to Build a Voting Smart Contract on TON Using Tact

TL;DR Learn how to build a voting smart contract using Tact on the TON blockchain — from writing code to deploying and testing in the TON Web IDE.

By @fakela [ 8 Min read ]

But Solidity isn’t the only smart contract language out there. And Ethereum isn’t the only blockchain that supports decentralized applications.

This guide focuses on the Tact language, and we’ll see how to use it to build a basic voting contract that lets users cast votes and check results on-chain...

Additional Stories of your interest:

-Meet the Bot That Reads All the Bad News Headlines So You Don’t Have To

-New Material Design Approach Could Change How Sound Travels Through Space

On This Day

Mac OS X is Born

In 2001, Apple released Mac OS X, a revolutionary new operating system that was a complete departure from its earlier Macintosh operating systems. Mac OS X was built on a Unix-based foundation and featured a new user interface called Aqua, which included features like translucent windows and a Dock for...