What if every idea had its own sandbox?
Mic Nealeβs using Dagger's Container Use MCP server with Goose to build isolated dev environments for safe testing, fast refactors, and side-by-side experiments.
https://block.github.io/goose/blog/2025/06/19/isolated-development-environments
Block Open Source
opensource@block.xyz
npub16l0c...yj9s
At Block, we believe open source is at the heart of innovation and community empowerment. Our vision is to nurture a diverse and vibrant open source ecosystem that removes barriers to technology and fosters economic opportunities for all.
Goose is open source, local, and designed to speed up how you build.
Join us in Toronto, where W. Ian Douglas will be your guide to getting started.
π Toronto, Canada
π
June 24 at 6pm ET
π

Toronto AI Agent HackNight with MCP ft. Codename Goose & Sentry Β· Luma
MCP is rapidly changing the landscape of what's possible for developer tools while broadly, AI is changing the way we work.
Let's explore this toge...

We've heard you all loud and clear! Goose v1.0.29 introduces Desktop for Windows!!!! π
This was definitely a community effort. Thank you all for the feedback, pull requests, and constant reminders π€
Enjoy! β€οΈ
https://block.github.io/goose/docs/getting-started/installation
What happens when you connect an AI agent to a plotting engine?
In this Wild Goose Case, Senior Data Scientist, Da Lu, shows how he built a custom MCP server that lets Goose generate live data plots & launch a Streamlit UI β all from a prompt.
πΊ: https://linktr.ee/blockopensource 

Weβre bringing the MCP magic to Sydney π¦πΊ
Think building an MCP server sounds complex? Phil Nash from DataStax is about to prove otherwise with a live low-code demo using Langflow.
π Sydney, Australia
π
June 23, 2024
π Save your spot:

AU AI Agent HackNight with MCP ft. Codename Goose & Databricks Β· Luma
MCP is rapidly changing the landscape of what's possible for developer tools while broadly, AI is changing the way we work.
Let's explore this toge...

At Block, we've built 60+ MCP servers. We're sharing our playbook on what's worked, what hasn't, and how we're building smarter tools for AI agents


Block Engineering Blog
Block's Playbook for Designing MCP Servers
Block's best practices, common pitfalls, and actionable examples for designing high quality MCP servers.
Michael Shimeles doesnβt just build with MCP; he shows others how to use it.
Heβs used his platform to introduce Model Context Protocol to over 19,000 developers, and now heβs sharing those insights live in Toronto.
π Toronto
π
June 24
π lu.ma/ruit2le5
Hosted in collaboration with Sentry


Goose is coming to Sydney π¦πΊ
And so is the person who built it.
Bradley Axen, creator of Goose, will join us at our MCP Hack Night to share how he designed a local, open source AI agent.
π Sydney, Australia
π June 23, 2024
π Save your spot:

AU AI Agent HackNight with MCP ft. Codename Goose & Databricks Β· Luma
MCP is rapidly changing the landscape of what's possible for developer tools while broadly, AI is changing the way we work.
Let's explore this toge...

Goose just got smarter.
We now support an automatic multi-model flow that utilizes a lead model for planning and a faster model for execution. It's an easy way to save on cost without sacrificing quality.
https://block.github.io/goose/blog/2025/06/16/multi-model-in-goose/
Next stop on the Goose Tour: Toronto π¨π¦
Join us for an evening hosted in collaboration with Sentry on June 24th where we'll:
π§ Explore Model Context Protocol (MCP)
πͺΏ Hack with Goose
π Good food, great conversations guaranteed
RSVP:

Toronto AI Agent HackNight with MCP ft. Codename Goose & Sentry Β· Luma
MCP is rapidly changing the landscape of what's possible for developer tools while broadly, AI is changing the way we work.
Let's explore this toge...

Tons of exciting events kicking off this week!
- Join us at RenderATL with talks from Angie Jones, Adewale Abati, and Ebony Louis π
- The Great Goose Off with Rizel Scarlett returnsπͺΏ
- AI agent hack nights in π¦πΊπ¨π¦
- Monthly Contributor Spotlight: All-Star Edition β
More info in the π¬
The latest edition of Block Open Sourcery is here!
In this month's newsletter, we cover:
π§ Square MCP server launch
π First international Goose meetup
β¨ Monthly Contributor Spotlight
and more!

Goose Goes Global
From the first Goose meetup in NYC to the upcoming hack night in Sydney, the open source community experiences are landing across the globe! Thrill...
The only source of truth should be the actual docs.
Goose + Context7 pulls live, versioned docs to help you:
β
Compare frameworks
β
Follow best practices
β
Scaffold apps with real implementation patterns
Removing all the guess work and your LLMs hallucinations.
Join us on stage at SXSW London!
Learn how SaaS companies can harness AI to drive growth, stay competitive and deliver smarter solutions with Manik Surtani (Block), Eleanor Lightbody (Luminance), Matt Weaver (OpenAI), and moderator Marine Boulot (The Metaverse Society)
Live at 11:35am on June 5th,
#SXSWLondon
#SXSWLondonπ "Got your keys, got your coins" - but what happens when those keys aren't as secure as you think?
Our latest engineering deep-dive explores Bitcoin wallet security vulnerabilities and the importance of robust cold storage approaches. Essential reading for anyone serious about crypto security.


Block Engineering Blog
Got your keys, got your coins: how to backdoor a bitcoin wallet
Inside a Bitcoin wallet backdoor: covertly leaking seeds through bitcoin signatures.
Code changes move fast. Docs fall behind.
What if your AI agent wrote and updated them for you?
Join us Friday to see how Crystal Ji built a workflow with Goose that auto-generates docs all triggered by a PR.
π June 6 @ 9am PT / 12pm ET
πΊ https://linktr.ee/blockopensource
π June 6 @ 9am PT / 12pm ET
πΊ https://linktr.ee/blockopensourceYour AI agent just got a voice.
And yeah, it might be yours
Goose + ElevenLabs =
- Voice cloning
- Audio editing
- Speech transcription
All from one single prompt.
Weβre excited to announce that Block has officially joined the Kotlin Foundation! π
This milestone highlights a special, shared history between our engineering teams and the Kotlin community.
Read more on the blog: 

Block Joins the Kotlin Foundation
Block Joins the Kotlin Foundation
Block joins the Kotlin Foundation to support Kotlinβs growth and innovation, deepening its long-standing commitment to the language and open source.
The third edition of Block Open Sourcery is here! β¨
Let's celebrate the latest milestones, recap goose hack nights IRL, and spotlighting community members together. Subscribe to get each edition directly in your inbox. β€οΈ

Building Bridges
The energy was infectious at #AIAgentHackNight with MCP in Atlanta, and the goose tour doesnβt stop there. Explore new open source bridges being ...

Goose's MCP hack night in SF is sold out!πͺΏ
Check out our schedule of upcoming events and latest updates this week:
- SF #AIAgentHacknight with MCP is full, but you can join the waitlist!
- The first Monthly Contributor spotlight is coming out this week. Join the Block Open Source Discord to see who:
- Wild Goose Case livestream is back this week, and this time...goose takes us scuba diving? Subscribe to the events calendar to keep up β‘οΈ
SF AI Agent HackNight with MCP ft. Codename Goose & Anthropic, Cloudflare, Stytch, and Supabase Β· Luma
MCP is rapidly changing the landscape of what's possible for developer tools while broadly, AI is changing the way we work.
Let's explore this toge...

Discord
Join the Block Open Source Discord Server!
Check out the Block Open Source community on Discord - hang out with 259 other members and enjoy free voice and text chat.
goose - CalGet