As solid as these flash drives will ever be! 😅

Ha! I rarely get people recognize the Dragon32!

What is the most cursed storage system I could make? This is a RAID0 array running on 32 of the worst USB flash drives money can buy. 🤞 Right now, on top of it I am running an Amazon S3 compatible object storage system. Let's see how many 9s can I get!

Intro to S3 Files YouTube video by AWS Developers

Do you wanna see S3 Files in action? I got you! youtu.be/zb8TdNJhZCk

Finally! I saw a S3 Bucket experience a race condition!

I'll be setting it up as soon as I am back from a conference! The home lab is calling! 😍

Stacked Dell Optiplexes

A Computer rack with Dell Optiplexes and some Cisco gear

I have a stack od Dell Optiplexes that draw around the same amount. But are *way* less powerful! So I think I wanna keep it in my rack, with some GPU on it. So either as a dev station, or just a way to experiment with Linux on ARM! But I am very cognizant of the power draw! 😅

Yes, apparently they are very much in competition. The marvelous @jeffgeerling.com did a whole writeup: www.jeffgeerling.com/blog/2025/mi...

A picture of the box of the Minisforum MS-R1 computer. Sitting on a desk in front of an IBM PC XT

Screenshot of Neofetch showing the current configuration of the Minisforum MS-R1 PC

If I can quote my good friend Cobus: I am getting ARMd and Dangerous! 😍 For a long time I wanted to experiment with running some Linux on ARM (beyond just a Raspberry Pi). And with the current day RAM and Storage prices, the Minisforum MS-R1 with 64GB of RAM and 1TB of storage at ~ $640 is a steal!

mariozechner.at/posts/2026-03-25-thought... 3/3

When I work with Spec Driven Development and Kiro, I spend extra effort in making sure the requirements, design and tasks (to an extent) are what I want them to be. Shorter iterations, implementing things I actually need.

Put this on your daily reading list: 2/3

What an excellent read! The fact that we can just spit out thousands of lines of code is not something to be terribly proud of (especially for a PROD workload). Being intentional, pausing, and making the correct decisions will make your work with Agents way more stable. 1/3

kirodotdev - Twitch Agentic AI development from prototype to production - Kiro helps you do your best work by bringing structure to AI coding with spec-driven development.

Come hang out with @kateholterhoff.com and me while we livestream with @darko.rup12.net

We're live at 9:30 Pacific!

www.twitch.tv/kirodotdev

😅 So, recently I recorded a video and wrote a blog on the things I've learned about caching and how to do it on AWS, with some Rust 🦀 and Valkey 😍

Check out the blog and the video below:

rup12.net/posts/database-caching-o... 2/2

I always thought caching was hard! A caching layer felt like an unnecessary complexity for anything I build. However, with the ability to one-click-deploy caching layers, I find I was wrong! 1/2

In my computer collection I have plenty of interesting specimens! But none are as interesting to me as this old Yugoslav Pecom32 from Ei Niš! 😍

Running on a RCA1802 CPU, some West German Toshiba RAM chips, and all Made in Yugoslavia.

Stay tuned for a full write up on this!

Weekend project: Display home lab rack power use!

Using a ESP32 and a 1602 LCD, I extract power usage from my smart plug via MQTT!

Kids, never do home labs! It keeps getting out of hand! 😅

I think this is something we should do! 😍

I have Talos on my list of things:
- SLURM
- K3s
- Talos
- SlicerVM

😍

Setting up a k3s cluster from mini PCs means replacing a lot of CMOS backup batteries!

Powered by ESP32 and some LEDs

Did you know that you can use the CLI and SDK to upload objects to other clouds!? This was a fun little experiment this weekend, where I got to upload files to Nebius's object store using my tools built for S3 buckets!

rup12.net/posts/s3-api...

#aws #s3 #sdk

Image from X

Since the release of obsidian-sync has made my initial blog post outdated, I've decided to give a little update with the current instructions on how to setup a headless obsidian sync on homelab server!

https://rup12.net/posts/running-obsidian-headless/

Image from X

Implementing post view tracking: Commit messages tell a story

YES!

There is something special about this Pentium II server I picked from the trash. See if you can spot it at the end.

Image from X

In my attempts to OptiplexMaxx I've given my nodes names based on rivers from my neck of the woods! 😍 Some servers are still pets!

Image from X

I always keep my important backups close by!

Image from X

Everyone is MacMinimaxxing for agents. Guess I should DellOptiplexmaxx!

Image from X

How about a HP workstation for $18 😍
64 GB DDR4 ECC is the gold mine here