Senior product & engineering studio and venture builder for Web3 and fintech. From Portugal. Trusted by Coverflex, Uphold, Qonto, Protocol Labs. Since 2012.
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Joined January 2009
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Subvisual retweeted
ethui is built by the team at @subvisual.
A product and venture studio that has shipped production web3 systems for years. The devs kept running into the same local dev friction on every project: wallet setup, state sync, ABI management, confirmation dialogs.
So we built the tool that should have existed.
Open source. Free to use.
#ethereum #web3dev #opensource #buildinpublic
Subvisual retweeted
We walked around @ETHGlobal Lisbon with a deck of cards. Each card covered a problem every Ethereum builder has hit at some point. We bet we could find one we could fix in under three cards.
Did we do it? Stay tuned for the full videos 👀
#ethereum #web3dev #ethglobal #developertools
Subvisual retweeted
I built an app that turns "Diário da República" into plain language🇵🇹
See what changed, for whom, and when, without sifting through pages of legalese.
Summaries run on Amalia, Portugal's new open LLM.
arcada.naps.pt
Subvisual retweeted
Meet the Judges: ETHGlobal Lisbon 🇵🇹
@rmdmac, Founder of @subvisual
July 24–26 · Pavilhão Carlos Lopes
ethglob.al/H734NIIBRQ
Subvisual retweeted
The major question about stablecoins, if they get adopted at large, as I expect they will, is where the backing dollars actually land.
If they go into central-bank reserves, are private issuers the only thing separating us from tokenised central-bank money?
Subvisual retweeted
Another amazing piece by @Sumcap ❤️
Subvisual retweeted
One of our favorite talks from Shipyard PRT x @subvisual event in Braga, thanks to @rmdmac!
@_rustopian the GOAT!
Check out the rest below!
Anchor is "horribly inefficient" in some cases. These are Peter Keay's words, not ours.
Native Rust is already significantly cheaper than Anchor. Pinocchio, the newer library he covers in his talk, is cheaper still, and the gap matters for every token transfer your users make.
Your agent will use Anchor by default. Here's why that's a problem.
🎥 Clip from his talk at Braga Blockchain: buff.ly/Bwmpz5q
#BragaBlockchain #Solana #DevTools #AI #Web3
Subvisual retweeted
Agents Day Braga kicking off with agentic development workshop by Davide from @subvisual
Subvisual retweeted
Starbase is this Friday at our Braga office. Morning session for builders who want focused work time and good conversations.
Evening meetup on 2026 Web3 trends.
If you're in Portugal or visiting, worth joining.
Subvisual retweeted
Stablecoins, what a concept.
Patreon takes 20% of creator income.
Not because they're greedy, but because credit cards, banks, and FX conversion cost that much
$100 → $80 (3-5 days)
Stablecoins: $100 → $99 (<60 sec)
Episode 1 of the Stability Series is in the link in our bio.
What would you build if payments weren't the bottleneck?
Subvisual retweeted
Some really cool intersections between AI and Web3 in this little giveaway alone.
Subvisual retweeted
Gentle reminder that the next Braga Blockchain is this Wednesday 👀
Don't forget to RSVP! Link in our bio 🔗
🚀 Next Braga Blockchain meetup is coming! Deep dive into Ethereum dev tools & the future of Network States 🌐
🎤 @Resende_666 (@subvisual) on what's new in @ethuidev (an Ethereum dev toolkit)
🎤 @marioralves (@LayerXlab) on how communities are becoming the new countries
📅 Oct 15, 6:30 PM
📍 Subvisual, Braga
🍺 Finger food & beer included!
Co-organized with @NetworkStatesPT
RSVP through the link in our bio!
#BragaBlockchain #Ethereum #Web3
Subvisual retweeted
The AlchemyConf version of my "Tell me a Story" talk is finally out 🎉
content.subvisual.com/talk-r…
The talk should be interesting to anyone developing software in a collaborative team environment, regardless of the language used. It's best experienced knowing no details about it, so skip reading the description, just hit the play button, and watch the story unfold.
The format of this talk is heavily inspired by the beautiful venue of Theatro Circo. It was the first time I performed at a theater stage, so for this occasion I dug deep, went far outside my comfort zone, and came up with a fusion of a technical talk and a monodrama 🎭
Of all the talks I've given, this one is the closest to my heart, so I hope you'll enjoy it!
Subvisual retweeted
OK, now that I have your attention, some quick thoughts about this 👇
Stablecoins have been a fascinating topic for me for a while now. I've been inspired by how some companies (like @Tesla) have used it to make operations run more efficiently. I've loved watching products like @QuillFi and @OrkiFi come to life and provide liquidity to entire ecosystems.
Some of the better and more interesting use cases for crypto and Web3 that I've seen in years are happening in stablecoins.
@subvisual as a company and myself as a founder and investor have always wanted to put our weight behind real builders that care about real products for real users.
This is what the #StablecoinSummer Sandbox is. The proposals are already rolling in, which is great to see, and I can't wait to get started. I have an inkling something really great can come of this.
If you feel even for a second you may benefit, just apply. No risk, no strings, let's get to building 🔧
27.6T in stablecoin volume last year. $255B market cap. 📈
Yet most infrastructure still serves traders, not businesses. 🤔
It’s time for #StablecoinSummer to change this!
We're launching a 4-week validation program for founders building stablecoin infrastructure for real-world use.
No generic advice or theoretical frameworks. Just hands-on validation with our product, engineering, and design teams. For free.
Read more about our approach and apply through the link in our bio. 👆
Subvisual retweeted
Happy to have been at @EthPrague last week, showing how @ethuidev brings a local-first approach to #web3 development: faster feedback loops, no deploys, and real UI prototyping,
Subvisual retweeted
I've been waiting to say the magic words:
We have never been more back.
quill.finance
Subvisual retweeted
Thank you to all our sponsors—this wouldn’t have happened without you.
@remote @ErlangSolutions @getcoverflex @Maersk @marmelasoft @yarilabs @teamalembic @StartUpBraga @cesiuminho
Subvisual retweeted
Just a couple more talks to go before the closing of #AlchemyConf, and we'd just like to say the team is delighted with the feedback we're getting from speakers and attendees.
This is a labour of love for us, and we're genuinely happy everyone is having a good time.
We made this conference for you.
Thank you 🙏
Subvisual retweeted
Alchemists, hear ye, hear ye 🧙♂️
Don't forget we have compiled a handy guide to Braga, with restaurants, spots to hang out, lovely working resources, etc for everyone to enjoy.
Check it here 👇
subvisual.notion.site/practi…
