Behind the tools, jokes, and experiments, here’s a peek into how one of Tezos’ most prolific builders thinks and creates.

You’ve probably seen that, quite often, I write articles about community-built tools that make it easier for Tezos users to navigate the space. And if you’ve been paying attention, there’s a name that keeps coming up again and again. Of course, I’m talking about Jack Tezos.
He’s one of the most capable and well-loved builders in the community, a multiple-time Tezos CRP award winner, and the creator of a lot of tools that make the ecosystem more fun and accessible. I thought it was about time he got a little extra spotlight, so here’s my Q&A with Jack, where we dig into his journey and his take on building in Tezos.
https://jtez.xyz/
Q: To start things off, and without doxxing yourself, tell us a bit about your background, like what got you into coding and building in the first place?
Video games. I’ve loved them since I was a kid, and I always knew that’s what I wanted to do with my life. After finishing my engineering degree, I was lucky enough to find work in the Spanish indie game development scene, where I spent about 10 years.
So my code has always been deeply tied to art and I hope it stays that way.
Q: Do you remember what initially pulled you into Tezos specifically, and not just crypto in general?
A friend introduced me to Tezos long before I ever decided to create the “Jack Tezos” Twitter profile. What I saw was a whole community of people making art, showing their most punk side, doing genuinely wild things… others writing code, maintaining platforms, all of it decentralized, or at least heading that way. Honestly, I felt at home from the very first moment.
At the time I didn’t know whether I’d end up writing code for the community, I hadn’t written a single line of “web apps” code back then, Bandog was my first web tool, whether I’d lean more into exploring and creating art. In the end, I did both. I learned to write code in that language called JavaScript, which should never have existed, and on top of that I started exploring interactive art.
Bandog: Analytics & visual tools for artists & collectors. Track sales, mints, wallet networks, and spot suspicious activity. All by pasting your wallet, no connection needed.
Q: When did it click for you that “ok, I’m not just using this, I’m actually going to start building things here”?
I remember posting on Twitter in 2023 asking if anyone needed a dapp, because I genuinely wanted to help the community. I didn’t have high expectations of sticking around as a builder since I had no web development experience at all. A collector reached out and asked if I could build an app to check the legitimacy of a Tezos address, something that would surface buy/sell data, wash trading activity, that kind of thing.
That’s when I started building Bandog. I still have the tweet saved!
And well, apart from starting Bandog, that’s also when my addiction to building things for Tezos began, lol.
Q: A lot of what you build feels like it starts from your own needs or curiosity. How do you decide what’s worth turning into something public?
Good question. When I’m deciding whether to build something for the community, I run through a few things: Is it actually useful, does it solve a real problem? Is the community asking for it? Can I commit the time needed to maintain it? And can I afford to keep it running?
If the answer to all of those is yes, I start writing code as soon as I have some free time.
Q: Have you ever built something you thought was really useful, but it didn’t get much traction? How do you think about that?
Due to its technical nature, Fileship is probably the service that “regular” users understand the least, which makes total sense since it solves a very specific technical problem. That said, it is actively used by the devs currently building in the ecosystem.
And then there’s Fart Noises… I probably should have picked a better name, lol. It’s a solid notification service that doesn’t get much usage right now, but I think it’s important to have an alternative to Crypto Noises. It was the only notification service in the entire ecosystem, and that’s never a healthy situation.
Fart Noises: A humorous yet practical tool that sends Telegram notifications for virtually everything happening with your Tezos NFTs, including sales, offers, mints, listings, and wallet activity.
Q: Out of everything you’ve built on Tezos, is there one project you were personally the most excited about? What made it stand out for you?
I’d have to say SBJKT. I remember spending 12 hours a day building alongside MEK during the week before launch, squashing bugs and polishing the last details. The community support was really something, and after a year and a half, 3,664 purchases have been made using SBJKT as a frontend. I consider that a success, and that project holds a very special place for me.
Q: What has it actually been like building on Tezos for you so far?
On the technical side, it’s hard to beat. You have free indexers and the support from the maintainers is great. I remember the BakingBad team helping me through the first problems I ran into with Bandog.
On the community side, people are genuinely engaged and interested in what you’re building, which is a real moral boost that keeps you going.
Q: What would you like to see more of in the Tezos ecosystem going forward?
On the technical side I have one very specific request: I’d love to see an alternative to the Objkt indexer. It works really well, it’s fast and very flexible, but right now it’s the only option we have for that purpose. We definitely need an open source alternative.
On the community side, after the 2021 boom a lot of people left the ecosystem. I’d love to see new artists, collectors, devs, and people who just want to experiment with the medium coming in and making it their home.
SBJKT: A collector-focused feed for Tezos art. Follow artists, filter by sales type (1/1s, auctions, OEs), track their new drops & listings across marketplaces, and get notified for the things you want.
Jack’s answers give a good glimpse into how he thinks and builds, but the Q&A only scratches the surface of everything he’s been up to. I won’t go into explaining his tools here, they’ve been covered in previous articles, and honestly, it’s even better if you go explore them yourself. In this piece, I wanted to focus more on the person behind the tools because Jack deserves the spotlight for how he thinks, experiments, and contributes to the Tezos ecosystem. It’s worth mentioning that beyond the projects he mentioned, he’s also behind more tools like the Tezos Archiver. You can explore them all at jtez.xyz.
On top of that, Jack has done some impressive work to preserve the Tezos ecosystem itself. Using his Archiver, he’s archived over 1 million Tezos NFTs. He even used it to try to archive all of Foundation’s NFTs when they announced the platform would shut down, helping preserve them for the community. And honestly, it’s not hard to see that he’s a generous person who loves Tezos and is always ready to help whenever and wherever he can.
So, if you want to keep up with his latest experiments, projects, and the occasional chaos he brings to Tezos, definitely give him a follow, you won’t regret it.
Community Spotlight: Jack Tezos was originally published in Tezos Commons on Medium, where people are continuing the conversation by highlighting and responding to this story.
