Darko Mesaroš
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darko.rup12.net
Darko Mesaroš
@darko.rup12.net
Yelling into the camera for @AWSCloud Welcome to some cloud and retro tech tweets. ☁ 💾 Opinions and ... skeets(?)... are my own! (he/him)

https://rup12.net

:wq!
This weeks project: Build a Rust app which generates BASIC code that prints large letters like this in Hi-Res mode!
December 28, 2025 at 9:58 PM
Holiday BASICs 💾
December 25, 2025 at 10:23 PM
Let’s talk about Rust’s Result and Unwrap: youtu.be/MTFqc_XzkgU?...
Let's talk about Rust unwraps!
YouTube video by ruptwelve
youtu.be
December 25, 2025 at 7:06 PM
Let’s learn some Rust together! ❤️🦀

Configuring the AWS Rust SDK
youtu.be/3nupUNtQ77k
Learning Rust: Configuring the AWS Rust SDK
YouTube video by ruptwelve
youtu.be
December 22, 2025 at 4:18 PM
Reposted by Darko Mesaroš
Another LGR Christmas thing! Watching/reacting/researching stuff in the Computer Chronicles Christmas Buyer's Guide from 1987

youtu.be/bWXLDfbmpU8

And that's it for both holiday videos and LGR overall in 2025. Have a happy new year and I look forward to getting back to more LGR things in January 🎉
1987 Computer Chronicles Christmas Buyer's Guide 🎁
YouTube video by LGR
youtu.be
December 21, 2025 at 6:16 PM
It’s Friday evening, and I’m backing up a collection of 5.25” Floppy disks! Thank you IBM PC XT 😍
December 20, 2025 at 1:07 AM
Reposted by Darko Mesaroš
Part 5 of DEV Track Spotlight 🦀

DEV307 with @ajs.bsky.social (AWS Serverless Hero, Datadog) & @darko.rup12.net (AWS)

Amazon Aurora DSQL: Kotlin devs rewrote one component in Rust → 10x faster with ZERO optimization attempts!

#AWSreInvent #DEVTrack #AWSCommunity #AWSHeroes
December 14, 2025 at 10:11 AM
Reposted by Darko Mesaroš
Find someone that looks at you the way @ajs.bsky.social looks at @darko.rup12.net.
Part 5 of DEV Track Spotlight 🦀

DEV307 with @ajs.bsky.social (AWS Serverless Hero, Datadog) & @darko.rup12.net (AWS)

Amazon Aurora DSQL: Kotlin devs rewrote one component in Rust → 10x faster with ZERO optimization attempts!

#AWSreInvent #DEVTrack #AWSCommunity #AWSHeroes
December 14, 2025 at 10:20 AM
Something very special came in a box 😍
December 17, 2025 at 12:53 AM
Yes, you CAN write MCP Servers in Rust 🦀 Here is my adventure in writing one: rup12.net/posts/write-...
Write your MCP servers in Rust
The little corner of the internet owned by Darko!
rup12.net
December 11, 2025 at 8:07 PM
Idiomatic Rust can download and deserialize 10k CSV files from Amazon S3 in 10 seconds 🔥🔥🔥

rup12.net/posts/downlo...
Learning Rust: Download and deserialize 10 000 files in 9.833 seconds
The little corner of the internet owned by Darko!
rup12.net
December 10, 2025 at 1:12 AM
What the hell is this weather NYC?! 😱🥵
July 14, 2025 at 10:20 PM
Reposted by Darko Mesaroš
Introducing Kiro - I've been testing it out for a while. It's truly a game changer.

Spec-driven development and agent hooks are a new paradigm in AI-assisted development. Check it out! 👻

kiro.dev
Kiro
The AI IDE for prototype to production
kiro.dev
July 14, 2025 at 4:15 PM
Reposted by Darko Mesaroš
Quick trial of AWS new IDE called Kiro, compared to my current favourite tool - Claude Code..

I gave the same task to Kiro and to Claude Code. First and foremost, I love how Kiro makes requirements > design > build a first-class citizen. That's by far the best workflow at the moment, and making...
July 14, 2025 at 9:19 PM
Reposted by Darko Mesaroš
Well, this is awkward. AWS released a Cursor clone and it's... actually not terrible? It may be time to re-evaluate my life. kiro.dev/blog/introdu...
Introducing Kiro
A new agentic IDE that works alongside you from prototype to production
kiro.dev
July 14, 2025 at 2:00 PM
I'm feeling spooky today! 👻
July 14, 2025 at 2:01 PM
For this weekend! I have unopened copies of something vintage from our friends over at Microsoft 😍

Microsoft Excel 2.1 and Microsoft Windows/286 ❤️
July 11, 2025 at 9:54 PM
I thought we were ready for Wayland. I'll try again in 6 months!
July 9, 2025 at 3:30 AM
Can you smell these old manuals?
July 8, 2025 at 12:24 AM
What a way to end a week! Got my hands on a couple of Data General One laptops ! 😍 These (unfortunate ) laptops from the mid 1980s were quite one of their kind! A Minicomputer manufacturer making personal laptops? Preposterous 🤯

Expect an unboxing and demo video soon! ❤️
July 7, 2025 at 5:06 AM
Grilling never stops 🥩🔥
July 6, 2025 at 9:30 PM
Weeks worth of chicken! 🔥
July 6, 2025 at 2:45 AM
Whoa! 🤯 2000 subscribers on my YouTube channel! Thank you so much for checking out my content there 😭😍
July 5, 2025 at 6:11 PM
I did not know that Blind is *so racist*. The amount of hateful comments, talking crap about foreigners, visa holders, "they took our jobs" is scary!

As a visa holder myself, I am truly appalled by the fact that my colleagues in tech have such a shit opinion of us.

Goodbye Blind! 👋
July 3, 2025 at 8:15 PM
Do you use zsh? Did you know you can make it even better? 🤔
In the video below I go over three tips…tools? Whatever , I use in my zsh configuration that save me those precious keyboard taps!

dotfiles linked in the video ❤️

(Bonus: a kitty 😻)

youtu.be/llVsxmcOlwo?...

#zsh #linux #commandline
Faster workflow in ZSH
YouTube video by ruptwelve
youtu.be
July 3, 2025 at 4:30 PM