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Jack Dorsey Launches Open-Source Chat App to Challenge Slack

Block CEO Jack Dorsey unveils Buzz, an open-source team communication platform built on Nostr protocol, signaling renewed focus on decentralization amid crypto adoption trends.

Jack Dorsey Launches Open-Source Chat App to Challenge Slack

Decentralization Takes Center Stage: Dorsey's New Communication Tool

Twitter co-founder Jack Dorsey has launched Buzz, an open-source group chat application designed to compete with Slack while advancing his vision of decentralized digital infrastructure. The announcement marks another step in Dorsey's ongoing commitment to blockchain-based solutions, positioning the app as a key component of Block's broader strategy to redefine team collaboration through self-sovereign technologies.

Key Innovation Highlights

  • Buzz operates on the Nostr protocol, emphasizing user control over data and communications
  • Integrates human-agent collaboration features for project management and development workflows
  • Represents Block's continued investment in decentralized social networking infrastructure
  • Aligns with Dorsey's long-term goal of making Bitcoin the foundation of global financial systems

Market Impact Analysis

The launch of Buzz underscores a growing trend among crypto innovators to develop practical applications that demonstrate blockchain's real-world utility. By creating a workspace that combines traditional team communication features with decentralized architecture, Dorsey's team is addressing a critical gap in the enterprise software market. This move could accelerate adoption of blockchain-based tools among developers and startups, potentially driving demand for Bitcoin-related infrastructure.

Analysts note that the app's open-source nature may attract developers seeking alternatives to centralized platforms, while its integration with Nostr could strengthen the protocol's ecosystem. However, the success of Buzz will depend on its ability to match the user experience of established tools like Slack while maintaining strict decentralization principles.

Outlook for Crypto Markets

Dorsey's latest venture reinforces Bitcoin's position as a catalyst for technological innovation beyond financial transactions. As more developers build applications on blockchain infrastructure, the demand for scalable solutions like the Lightning Network may increase. This could create positive feedback loops for Bitcoin adoption, particularly among tech-savvy users and enterprises looking to leverage decentralized technologies.

While the immediate market impact remains uncertain, the philosophical alignment between Buzz and Bitcoin's core principles suggests long-term potential. Investors should monitor developments in decentralized communication tools as they may indicate broader shifts in how blockchain technology is integrated into daily workflows.

Market context

Market data reflects conditions at publication time and is not updated in real time.

Data captured at: Sep 18, 2026 02:05 (Tehran)

Likely market impact

SegmentOutlook
Bitcoin▲ Bullish
Ethereum● Neutral
Altcoins● Neutral
Short term▲ Positive
Long term▲ Bullish

Spot prices at publication

BTC/USDTBitcoin
$76,480.01+0.90% 24h
Ξ
ETH/USDTEthereum
$2,448.26+2.09% 24h
SOL/USDTSolana
$101.56+3.91% 24h

Fear & Greed Index

50Neutral
Extreme FearFearNeutralGreedExtreme Greed

Chart

Source: Bitcoin Magazine

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