🗓️ May 12-13, 2027 - "Ethereum for Everyone" Conference 🌐 https://xitter.twitterapi.xyz/t.co/Sif2YgbU8o
Cluj-Napoca
Joined August 2023
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"Ethereum for Everyone" second edition was absolutely wonderful - we are grateful for everyone who joined in, lent a helping hand, as well as everyone who supported us from afar, including our wonderful volunteers & awesome sponsors who helped make it all real.
ETHCluj 2026 is about the people, the connection, and the knowledge and collaborative builder spirit we want to share and take forward - with our community in Romania and with the entire Ethereum community around the world.
Onward, togETHer! 🙌
The right support can change the trajectory of an early-stage company.
We’re excited to support Cohort 2 of the Arbitrum Mentorship Program, a 12-week program for ambitious teams building on Arbitrum One and @RobinhoodCrypto Chain.
The program gives founders hands-on support across product, go-to-market, growth, fundraising, partnerships, and execution, with access to experienced founders, operators, investors, and teams from across the @arbitrum ecosystem and wider industry.
Founders will get:
• Practical workshops focused on real company challenges
• 1:1 mentorship tailored to each team
• Fundraising support and curated investor engagement throughout the cohort
• Direct access to ecosystem partners and the Arbitrum Foundation
• The opportunity to showcase progress to leading VC’s at Demo Day• Practical workshops focused on real company challenges
• 100k prize pool for the winners
If you’re building on Arbitrum One or Robinhood Chain, this is an opportunity to work closely with people who can help you build, grow, and raise.
Limited spots.
Apply now
tally.so/r/Xx6xqO?utm_source…
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A heartfelt thank you to @vpavlin for his talk at ETHCluj this year, as well as for his continued support since the very first edition of our conference.
"nobody should be able to tell that I have sent something at all"
Even Signal can leak who talks to whom.
@vpavlin, Build Like Nobody Can Stop You: YOLO on Logos, @ETHCluj
Follow @streamETH for one great Ethereum talk moment a day.
If you're a builder ready to take your project to the next stage, this is for you 🧑💻
Our mission to back founders continues with the Arbitrum Mentorship Program.
Together with @robinhoodcrypto, we’re opening doors for teams on Arbitrum One and Rohinbood Chain to:
> Connect with investors & ecosystem partners
> Pitch at Demo Day in front of +50 investors
> Compete and win $100K in prizes
Register today:
tally.so/r/Xx6xqO?utm_source…
Check out the Arbitrum Mentorship Program and apply
👇
tally.so/r/Xx6xqO?utm_source…
ETHCluj is about people.
The ones who show up for themselves and for everyone else.
The ones who build collaboratively and keep going, even when things get hard.
The ones who believe that what we build togETHer matters more than what we build alone.
Next May, we meet again 🌿
Cluj-Napoca, Romania
May 12-13, 2027
Mark your calendars 💜
This year for 🇮🇳 @EFDevcon Mumbai, we partnered up with @eiphub and the @EthCatHerders team to help support the work they do for Ethereum and its community.
Happy to be part of this together 💜
Keep an eye on the website for programme and speaker updates.
If you are a student - check out the @EFDevcon student initiative and apply.
eiphub.xyz/
The next step in Ethereum adoption will be supported by cross pollination between crypto and traditional open source & public goods communities.
Glad to see Ethereum being represented this year at Open Source Summit & Embedded Linux Conference Europe.
The Ethereum Foundation is proud to support the open source community as a bronze sponsor of Open Source Summit + Embedded Linux Conference Europe 2026!
Come find the team to exchange ideas, make connections, and learn across domains.
View the schedule: bit.ly/3NXx5Zp
Good founders are always on the lookout for great, talented people to work with on their projects.
Here's @OW3NBTC sharing insights from his vast experience.
New on StreamETH — Owen Healy (@OW3NBTC), Finding The Right Talent, ETHCluj Meetup (@ETHCluj).
streameth.org/watch/yt-K5ivP…
Special thanks to @andrewtookay for delivering this talk at ETHCluj this year 👏
New on StreamETH — @ETHCluj @NethermindSec, Alexandru Andrei Dobra — The Agentic Layer of Smart Contract Security, ETHCluj Meetup.
streameth.org/watch/yt-8mpHb…
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Check out the panel we hosted at this year’s ETHCluj conference on how AI is shaping the crypto landscape.
A warm thank you to our speakers @andrewtookay, Alexandru Stănescu, @dani_wam , and @vasilescusergiu
New on StreamETH — What AI Changes in Crypto? Panel Talk, ETHCluj Meetup (@ETHCluj).
streameth.org/watch/yt-57klZ…
Big thank you to our friend @MorphNetrunner for his contribution to this year's edition of ETHCluj conference with:
1/ hosting a workshop taking everyone through what a day in the life of a core Ethereum dev looks like
New on StreamETH — Milos, A Day in a life of a core dev, ETHCluj Meetup (@ETHCluj).
streameth.org/watch/yt-0gdy3…
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2/ sharing insights into the upcoming Glamsterdam upgrade
👇
youtu.be/0ghVvB80jPs?is=05JQ…
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We’re delighted to welcome our friends from @ETHGreeceHQ as community partners.
We’ve been following their work in and there’s a lot that feels familiar: local Ethereum community, focused around education and creating spaces where people can learn and build together.
Much like ETHCluj, which started in 2021 as Cluj Ethereum Developers but only became the official non-profit we have today in 2024, Ethereum Greece started in September 2025, while the non-profit was established in February 2026.
The community has already grown to more than 200 members, with 15 events so far, including seminars, talks and workshops with 5 of the largest universities in Athens.
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Happening now - @thedaofund’s first Ethereum Security Space.
We’re going around the room with introductions, and the discussion is already looking interesting. 👀
Join here 👇
Freedom is not something we can afford to take for granted.
This is worth remembering and defending.
Kudos to our friends at @Logos_network for launching The Museum of Civil Liberties 👏
Society is crumbling with every freedom taken from us.
The Museum of Civil Liberties is a reminder of what we’ve lost and a call to reclaim it.
Enter the museum: logos.co/past-present-future…
We’ve given the ETHCluj website a little refresh ✨
It’s a small step, but one that means a lot to us - bringing together our events, initiatives, learning resources, and ways to get involved - all in one place.
Whether you’re just starting your journey or already building, we hope it feels welcoming, useful, and open - just like the community behind it.
Special thanks to our co-founder @catalin_balut for seeing this through 🙌
Take a look
👇
Governance efficiency is the largest wealth generator we have.
The answer to failing institutions is not reform from inside and not revolution.
It is a competitive marketplace of parallel institutions, and tools, filling the gaps that existing governance leaves open.
Now is the time to build the alternative, make exit cheap, and let people opt in.
Take action. Build the parallel.
Testnet v0.2 is live and open for you to try out.
Core protocols are hardened and the first privacy primitives are online, including Blend, which brings proposer anonymity to the consensus layer.
Run a node. Build. Test it.
blog.logos.co/article/testne…
Our friends at @Logos_network just launched their Testnet v0.2 and we encourage everyone to try it out.
Logos is a complete privacy-preserving technology stack of messaging, storage and blockchain, and a grassroots movement that enables people to build their own institutions and govern themselves without asking permission.
Find out more and get involved
👇
docs.logos.co/
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Arbitrum London Founder House is on this weekend in London at @encodeclub 🧑💻
We're delighted to have been able to support in bringing people together and looking forward to the wonderful projects that will emerge.
Keep building. Keep shipping.
Onward.
Arbitrum London Founder House starts tomorrow 🇬🇧
A huge thank you to our community partners for helping us spread the word and bring together founders and innovators from across the ecosystem to build the future of the programmable economy.
- @encodeclub
- @CML_LDN
- @ETHCluj
- @DeVinciBC
- @Zebu_live
- @ETHLDN
- @AngelHack
- @ETHBucharest_
Excited to spend the weekend building together 🤝🏻
If you’re around Mexico City this July, don’t miss the chance to drop by @ETHCincoDeMayo incubathon, happening on 7-12 July.
We look forward to seeing the projects and new collaborations that come out of this event.
¡Ya está por iniciar ETH Cinco de Mayo 2026! 🇲🇽
Del 7 al 12 de julio reuniremos builders, empresas, startups y la comunidad Web3 en Ciudad de México.
¿Ya te registraste al Incubathon? luma.com/r97cdj8e
At ETHCluj this year, we had a conversation with panelists from @AdevarLabs, @HackenProof, @therealgregoAI, @l2beat, and @colibriclient around security on Ethereum, coming off the back of recent wave of exploits.
What stood out is that many of these issues aren’t new. They’re often known, reported, even understood - but still end up being accepted, deprioritized, or left out of scope.
A lot of risk doesn’t come from what we don’t know, but from the trade-offs we make along the way. As systems grow more complex, those small decisions become increasingly important.
Security isn’t out of reach, but it does depend on how consistently it is prioritized.
Our way of contributing is by creating space for the community to learn, share knowledge, and make security a more active priority.
Thank you to @banescusebi, @DmytroMatviiv, @0xriptide, @kaereste, and @SteffenKux for joining this conversation and sharing their thoughts and perspectives.
Watch the full discussion here
👇
youtu.be/Eb8CqJ82Q-g
Apply today to Arbitrum Founder House London if you haven’t already.
Don’t miss your chance at a share of $300K in prizes and grants.
The journey doesn’t stop here. We’re encouraging everyone who joined - and anyone building on Arbitrum - to take the next step at Founder House in London 🇬🇧
We’re supporting Arbitrum’s Founder House in London, at @encodeclub venue, a 3 day in-person event for early stage founders and teams building their ventures on Arbitrum.
London | July 10–12, 2026:
• $300K in prizes & grants
• Direct access to @Arbitrum, @Offchain, @RobinhoodApp Chain, AWS and ecosystem mentors for technical, business, and GTM feedback
• Apply with an existing project or come ready to build new businesses on Arbitrum
