Marko Denic

Software engineer. I write a free Saturday newsletter with practical programming tips for the AI era, read by 9,500+ developers.

[Marko Denic @denicmarko]

JS tip: add a Cmd+K palette without a library.

document.addEventListener('keydown', e => {
if ((e.metaKey || e.ctrlKey) && e.key.toLowerCase() === 'k') {
e.preventDefault();
palette.showModal();
}
});

A native <dialog> handles Escape, focus and the backdrop.

[Marko Denic @denicmarko]

@joncphillips Not if we don't have products. :)

[Marko Denic @denicmarko]

btw...

[Marko Denic @denicmarko]

Serious question. Why are LLMs so bad at estimations?

[Ilan Kadar @ilan_kadar]

Big day for us at @pluraiAI ! Plurai Simulation is live and free for every AI engineer.

AI agents look great in demos. Until real users break them.

So we built a world where your agent can fail, learn, and get fixed before your users ever see it.

→ Digital twin: Your real agent, its tools, and environment recreated from your code

→ Simulated users & tasks: Realistic users, tasks, and workflows that push your agent into the edge cases that matter

→ Auto evals: Check what your agent actually did, not just what it said

→ Verified fixes: Every failure comes with the run that exposed it and a fix you can verify

→ Replays: Turn any production failure into a simulation and replay it against every new version of your agent

All inside the coding agent you already use: @claudeai code, @OpenAICodexCli , or @GitHubCopilot .

Start simulating for free: https://t.co/1PNPQdW29S

[Marko Denic @denicmarko]

@ilan_kadar @pluraiAI Congrats to the team! 🎉

[Niels Schmidt @nielsmdt99]

Give your AI agent a real iPhone in the cloud...

just prompt it with a task:

> the agent figures out the plan
> executes workflow on a real iPhone
> delivers the final result

works with claude, codex, hermes, grokbot, openclaw, and more.

[Marko Denic @denicmarko]

You can find demo and code here:

https://t.co/l4CvCvbjXU

[Marko Denic @denicmarko]

CSS tip: make a carousel snap to each card, no JS.

.carousel {
overflow-x: auto;
scroll-snap-type: x mandatory;
}
.card {
scroll-snap-align: start;
}

Every swipe lands on a full card instead of stopping halfway through one.

[Marko Denic @denicmarko]

@Dhanush_Nehru Thanks D

[Marko Denic @denicmarko]

I added a like button to my blog ❤️

Not a normal one:
- A tiny pencil scribbles the heart in with every tap
- Tap up to 10 times to color it in
- Fill it all the way for a small celebration

https://t.co/CDTdbu3aK5

[Marko Denic @denicmarko]

@mjovanovictech There's one Fable reset as well. Let's go

[Marko Denic @denicmarko]

Turn on the sound though

[Marko Denic @denicmarko]

omg https://t.co/f8eC3lUFpz

[Marko Denic @denicmarko]

@radiumcoders Can't stop bouncing. LOL

[Marko Denic @denicmarko]

@joncphillips I wrote about it here btw

https://t.co/sbIltJ7zul

[Marko Denic @denicmarko]

@acolombiadev 💯

[Marko Denic @denicmarko]

@educalvolpz True. I do feel like this should be the default though.

[Marko Denic @denicmarko]

@wakeona I did! :)

[Marko Denic @denicmarko]

@venelinkochev 💙

[Marko Denic @denicmarko]

@BuildWithAJ Thanks!

[Marko Denic @denicmarko]

@csaba_kissi Glad you like it man. Hopefully people like it and interact with it. :)