Mariusz

Overnight oats are the ultimate lazy person breakfast I don’t make the rules

There are entire companies out there where this is expected too

For what it’s worth I got the highest version of the Loop and a cheap Chinese knockoff of them and there almost zero difference

Prototypes vs Products - Silicon Valley Product Group Learn the difference between prototypes and products in the era of AI product development.

If you watch skilled users of generative AI tools, you’ll see that they utilize their respective tools very differently. This makes complete sense because building to learn is very different from building to earn.

www.svpg.com/prototypes-v...

Recover from Bad Decisions Go from "we blew it" to "we've got this" with the crisis-management playbook for senior leaders and executives

Fast failure isn’t the opposite of success — it’s the cost of speed and the fuel of learning. Leaders who cannot accept the potential for any failure at all slow themselves and the team down.

levelupwithethanevans.substack.com/p/recover-fr...

Life hack: live your life in such a way that you don't feel ashamed admitting your choices in public

LukeW | Showing the Work of Agents in UI As AI products lean more heavily into agentic capabilities, the same design challenges keep surfacing across projects. Here's a look at how we've approached one...

Whether people are using agentic products for coding, data analysis, or writing, some users find the agent's work overwhelming and want the interface to focus purely on results. Others say seeing that work is essential for monitoring and checking what the agent is doing.

lukew.com/ff/entry.asp...

Five research questions that provide the foundation for good design An evidence-based approach for determining the viability of product ideas

Making space for these five straightforward questions introduces evidence early. The answers to them can provide a simple checkpoint between “I think” and “I know” that helps determine whether a product idea is well supported and likely to succeed.

adobe.design/stories/proc...

ACAB includes Proton btw

Screenshot of The Guardian with the top 42% taken up by some car ad and the bottom 42% by another ad from the newspaper asking for money.

Web design in 2026 leaving a small gap where you can just about read the headline

Yeah I get why people use ChatGPT to replace Google too because Google is just garbage results for first 10 pages lol

The fundamental problem with design docs is the same one that killed waterfall: you have the least information at the beginning of a project, which is exactly when design docs ask you to make the most decisions.

www.lucasfcosta.com/blog/design-...

The Last 20% and Who's Asking Why? Everyone can build now. Almost nobody stops to ask if they should.

Democratizing access to design tools is genuinely good. I believe that. The problem is the assumption that because someone can produce a thing that looks like a designed product, they’ve done the work of design.

chadsnewsletter.substack.com/p/the-last-2...

Mariusz Cieśla | Principal Product Designer Product Designer & Design Lead based in Berlin. Design systems, UX research, AI prototyping, and product strategy.

So as I wrap up my role at LILT I am now officially on the market.

Looking for Senior/Staff or Lead Designer role on a team that solves an interesting problem and cares deeply about their users, preferably remote-first.

work.mariusz.cc

#ProductDesign

Aw yis, that's what I've been looking for. Thanks.

Is anyone exploring layouts and components as data in design systems? I feel like we have Design Tokens basically solved with DTCG JSON and maybe it's worth looking a layer higher for a neutral notation of components that would be then converted to whatever tool needs them.

Bing makes enough money being an API for all the “private” search engines that feed your data to Microslop

I didn’t know Microslop was a thing until I saw headlines about Microsoft trying to ban Microslop on its Discord. Now I shall say Microslop a lot. That’s how it works.

It’s good when Microsoft, a company that likes genocide and environmental destruction, doesn’t like things.

The hidden cost of AI prototypes that are made to die How product teams should evaluate AI-generated UI

The hidden cost of AI prototypes is that they can’t move forward. And when the underlying output is treated as “disposable” automatically, product teams pay for it later in the product lifecycle through translation work, rewrites, and reduced speed.

uxdesign.cc/the-hidden-c...

The real power of a design system comes from its foundations. Elements like tokens, spacing logic, typography scales, semantic naming, and layout principles do much more heavy lifting than the visible components ever could.

medium.com/@vandanapraj...

#DesignSystems #ProductDesign

Design Still Derisks Dev I built a design system in a weekend.

Prompting is lossy. You can describe what you want in a hundred different ways and still lose the nuance. A well-structured Figma frame is a high-fidelity specification. It carries more signal in one frame than a paragraph of instructions ever could.

robertritacca1.substack.com/p/design-sti...

The AI Productivity Paradox AI was supposed to free up creative time. Instead I spend more time reviewing and fixing AI output than I ever imagined.

“The problem is that producing was never the hard part. Thinking was the hard part. Making good decisions was the hard part. AI doesn’t do that for you. It just gives you a pile of “done” that isn’t.”

How I’m dealing with the pressure to adopt AI as a designer — mynameismartin I’ve spent the last month trying to catch up with AI in design, and I have news. Things haven't settled, the ground is still moving, and sitting with uncertainty might be the best position right now

You wouldn't adopt a new approach or tool without being sure it had a positive outcome for your work. AI is no different, and it doesn't get a free pass just because the discourse is louder.

www.mynameismartin.co.uk/blog/how-im-...

#ai #productdesign

Product roles in the age of agentic AI development I was watching Office Space the other night. There's this scene where the Bobs are interviewing Tom, the product manager. They're trying to understand what he does there. Tom's (frustrated) answer is…

With agentic AI coding, the IC-level product manager is about to profoundly change again.

If you can describe/iterate to what you want built, you can build it without waiting for someone to translate your intent. The prompt is the spec.

world.hey.com/cpinto/produ...

#ai #productmanagement

That’s a great tagline Andy.

8 learnings from 1 year of agents – PostHog AI - PostHog Today we launch PostHog AI, the AI agent built into PostHog . A year in the making, we've gone a long way from our first chat prototype made over a…

“Context is everything for an LLM - when every layer of abstraction introduces loss of context, the ability to string tools together and self-correct course washes away.”

posthog.com/blog/8-learn...

#ai #llm

Claude Code for Designers: A Practical Guide A Step-by-Step Guide to Designing and Shipping with Claude Code

If you’re a designer looking to get into Claude Code, this is one of those guides that you probably need to read if you want to be more efficient.

nervegna.substack.com/p/claude-cod...

#ai #ux #claudecode

Hackers Expose Age-Verification Software Powering Surveillance Web Three hacktivists tried to find a workaround to Discord’s age-verification software. Instead, they found its frontend exposed to the open internet.

Oops. Turns out Persona, Discord’s age-verification service, was secretly screening selfies against government watchlists AND accessible by the feds. It's backed by Peter Thiel.

“The state wants to see everything. The corporations want to see everything. And they've learned to work together.”

Most mainstream social media these days is just bots talking to bots and people using bots to produce everything because ultimately posting is a low perceived value activity to get exposure.

In short, Dead Internet Theory is no longer a theory.