Leonardo Zizzamia

Ladies and gents, this is the moment I’ve waited for 🎶 It’s fire, it’s freedom, it’s love, it’s friendship that is flooding open 🎶 Impossible comes true, it’s taking over 🎶 Oh, this is the greatest day I celebrated my love for @jessica_nicolet 💙🎶

@dan_coff add to the 2026 list, meet with Leo and hang

2025 - Turned 40 - Welcomed 2nd child - Sold my old house, moved to new house - Built my workshop - Achieved 11% body fat, 17 pull-ups 2026 - 10% body fat, 20 pull-ups - Completely finish home remodel - Build one piece of beautiful furniture for use in my home

Code refactoring and good architecture is something that we all learnt by making thousands of mistakes and manually rewire and polish our own code. A simplification there, a over engineering there, a silly best practice there. But we made the decision and we took ownership of our own code. Now there is a very deep philosophical question, if you are robbed of this learning opportunity as Vibe Coding just gets the job done, how the heck you will learn? Like for me Vibe Coding is great because I have 20 years of coding experience and I made so many mistakes I just know when something feels off and i need to push Codex or Gemini into a different direction. But if you don't have that manual experience, how do you know when that is not right? Sure other people reviewing, sure some code reviewing tools, but still. Building software is at more an Art that just pure Science. I don't have an answer, just very curios to see how the new Junior Devs will learn the Art of great coding and great architecture if they never write code by hand.

Sometimes I wonder why they don't teach how to Code Review a PR in college. I mean, I understand there is a lot of believe cooked in what makes a good or bad PR, but I feel like just some foundational work like: - when is worth add comment - must this have tests - what makes a test a good one - is this code a potential performance hazzard - is this code easy to mantain - when is ok to push the limits and when is not Maybe because it gets into the Art territory instead of Science, it can get hard to validate. But I think helping young software engineer practice more the soft-skills in how to think good vs bad code, it's so critical, ESPECIALLY in the Vibe Coding Era.

kind of..... distribution with AI only works if the product is good. Let's not forget the 200+ project Google failed, even with their distribution. I just think, for once, they might have built something that actually me personally I feel excited about it. And it's a good motivation for everyone else to keep doing better. So that we all benefit in this high-quality competitive market.

@Zizzamia Plus its included in a Gsuite account, which is huge

Apperently Gemini is actually a better experince, today, Dec 9th 2025 than ChatGPT. I honestly did not believe that, but in the last 36 hours I end up having a much better experience with Gemini. Ok, so what's actually happening. The feeling I have is that ChatGPT is very very Academic kind of thinking, it gives you what you need but it's more School smart. But what I need most of the time is Street Smart. I want an AI that knows how to get the job done, don't talk too much, be able to anticipate my thinking, and cut the conversation when need it. The race for the best Consumer AI is for sure like F1 2025 season, very very close, and you should never fully count out Max. Well Done Gemini! And can't wait to see how this race will play out in 2026.

happy to chat in person next week, and talk Vibeslist, the Bloomberg Terminal for concierge teams: one living, taste-ranked map that replaces static lists and scattered websites. Vibeslist turns noisy city data into fast, on-brand recommendations, saving concierges hours and giving them an edge other hotels don’t have.

All I want for Christmas is to invest in one more cracked technical founder solving a real business problem they’re utterly convinced is big and pervasive. If that’s you, I want to meet you. We write $500k+ check, first money in.

@luci_holland Hayes valley, nice

I truly officially live in sf as of today

Today is a Linkin Park day One thing, I don’t know why….

you know.... I used to over refactor for the sake of beauty, than when I was 25, I learn from this coder from Pixar, that you can get great code working in just 1 single file with over 2k line of code. And with VIM it's even better because your productivity will 20x with all the keyboard shortcuts. At that time I was like, this guy lost his mind. BUT, windsom finds always his way to reach you. Now, I am like "do not refactor that file till it starts bleading". It's 2k line, and works well, keep it as it is. Only when you feel the pain to work on it, than refactor it. And yeah you right, taste is everything. And knowning when something is good enough or just time to make it better, takes time to learn.

I refactored so many projects in the last 20years of coding, that as CEO I end up having my team pushing at max speed every week, and then I stop by the codebase for an afternoon, look their code and do a big big big cleanup. Maybe because I spent so many years built Infra, that I just can not have chaos in our codebase. Or actually let me reframe it. Chaos is good, but I still want to make sure we can be productive. The last thing you want in any codebase is when chaos ends up slowdown productivity by 2~3x. One of my favorite memories when I was 22 was rewriting the same CMS I built from Php to Python to Node.js, and from SQL, to Postgress to Mongo. I know, why? But hey, that was the fun of loving the craft. To be fair, once I was so mad at jQuery I end up just writing my own jQuery-Like library called Tiramisu, with @proudlygeek . Best part of it, was that instead of calling $.wathever we had t.whatever aahaha @proudlygeek made a sick landing page, I still think about it time to time how good it was. it's is still up, which is crazy opentaste.github.io/tiramisu/

@pschork No bad 😁

The Christmas vibes were just right 🎄@theallinpod 🎄

100% And probably one more point is that weird balance between freedom to build and clear limits in what are the building blocks. From when we are kids we are trained on pattern recognizing and master those to play in those limits. Legos, Math, Minecraft, Cooking Recipes, Sports Moves and so on Give too much freedom, you feel overwhelmed, give too much restriction I feel I can’t get enough skin in the game. Every AI company that knows how to draw the line of where those freedom and restriction live in the User Experience will just unlock the new Bicycle for our Minds Always love a good Steve Jobs reference 😆

@Zizzamia Yes totally! I do think some apps are more like content now than long-term software

An underhyped use case for vibe coding is "ephemeral software." These are apps you spin up quickly and use for a short period of time. They can be incredibly useful. But the economics didn't make sense before AI when everything was hand-coded. A few I've made recently 👇 1) Christmas gift tracker - I ALWAYS forget what I've ordered my friends and family members. Now I have a place to track what I bought each person, how much I've spent, and where / when each item should be delivered. 2) Disneyland food guide - took a family trip after Thanksgiving. We always have wish lists of food we see on TikTok and want to try, but never remember them when we're there. My app organized all this, classified items by meal type, and let us "mark as eaten" 😂 3) Theme park design generator - while in ride lines, we thought it would be fun to see what "lands" would look like for different movies. Nano Banana Pro would visualize the environment, rides, and snacks for us. 4) NeurIPS schedule - I had a bunch of talks and workshops I wanted to see at NeurIPS but they weren't formal meetings + didn't belong on my work calendar. I made an app to brain dump the times & locations of everything and organize a schedule. I made all of these apps on @wabi - which is particularly useful because then I have them on my phone! And I can publish them for others to find and use.

@IkoWEB3 Very sweet, thank you Iko

@Zizzamia This is clean AF Leo🔥. From chaos to Lego bricks in one leap, Gen2 looks insanely scalable. Just followed you @Zizzamia would really appreciate a follow back

When you build an Infra that can build clean dataset, oh boy everything gets so easier to build on top of it. Then the real question is, what's good Infra in the age of AI? Honestly I have my own thinking around it, and it change the answear based on what phase of your product you are. Internally in Vibelist we started using the term Gen2, Gen3 as a way to define clear chapter of the different generation of Infra and Dataset we are building. Gen 1 was very chaotic, honestly we had good intuition but not good structure, Gen 2 we really were able to build solid taxonomy, and create several internal tools to generate the labeling and vector we need. So no we just finish Gen 2, literally today. Over 2.5k complex record all well classified and 20+ Taxonomy to support it. Gen 3 which will last probably till end of Janaury is focus a lot on refining how the this structure needs to get more granular and let's just say smaller pieces of legos. If you are in SF and love geek around Taste and Dataset, I am around to chat over incredible coffee.

@diogoSahr @EOEboh All good, there is still One Piece

@Zizzamia @EOEboh Can’t code 😂

What language are you betting your career on right now?

@erdemwrites @iyoushetwt it's still really hard I interviewed 100+ people with that question, and still even if you knew, that will be the question ahead of time, if you are not good, you still have high chance to fail. Because it tests deep knowledge of Browser rendering, JS limitations and more

@Zizzamia @iyoushetwt You're right 😂 I remember how hard it was in 2000s to do it with HTML and basic CSS. Especially dealing with different browsers then..

What's one programming skill everyone should learn?

I feel like more and more X is LinkedIn and Linkedin is X