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selmaohneh.bsky.social
Cello's Blog
@selmaohneh.bsky.social
11 followers 5 following 34 posts
Software Craftmanship, Cyber Security, Smart Home, and Nerdy Stuff.

Black belt in Marcel Arts 🥷

https://www.cellos.blog/
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selmaohneh.bsky.social
This year, I came up with something very special for my daughter: a smart audio Advent calendar powered by @home-assistant.io

www.cellos.blog/p/building-a...

#smarthome #diy #advent
Building a DIY Advent Calendar powered by Home Assistant
24 days of Bibi Blocksberg
www.cellos.blog
November 11, 2025 at 12:05 PM
selmaohneh.bsky.social
There are too many things to remember, my brain simply can’t handle it alone.

Fortunately, I have a second brain right inside Obsidian.

www.cellos.blog/p/building-a...

#obsidian #cybersecurity #note-taking
September 4, 2025 at 7:56 AM
selmaohneh.bsky.social
If you build up a life, career, family, you don't want to throw that all away by going to jail because you misstepped once during a pen-test.

Here’s is my bare-minimum legal cheat sheet of laws and regulations.

www.cellos.blog/p/pen-testin...

#pentest #cybersecurity
August 29, 2025 at 6:15 AM
selmaohneh.bsky.social
You are NEVER safe in Cyber Security!

www.cellos.blog/p/you-are-ne...

#cybersecurity #risk #pentest
You are Never Safe in Cyber Security
That’s the reality: complete safety does not exist.
www.cellos.blog
August 26, 2025 at 11:40 AM
selmaohneh.bsky.social
Would you spend 3 months learning something that could benefit you for the rest of your life? Sounds like a no-brainer, right? 🧠 Yet, it took me reaching a point of physical pain to finally make a change.

#ergonomic #developer #keyboard #programming

www.cellos.blog/p/my-journey...
My Journey to Pain-Free Typing
As software developers, we type a lot.
www.cellos.blog
August 26, 2025 at 9:05 AM
selmaohneh.bsky.social
Some quick thoughts on learning Cyber Security.

What’s your top tip?

#CyberSecurity #Learning

www.cellos.blog/p/learning-c...
Learning Cyber Security
5 Quick Wins for Your Mindset
www.cellos.blog
August 25, 2025 at 12:45 PM
selmaohneh.bsky.social
A Smart Home is not just a Nerdy Hobby. 🤓

Mine is saving me 250€ every year! 💰

Thanks @home-assistant.io !

www.cellos.blog/p/how-home-a...
How Home Assistant saves me 250€ every year
The gas price went nuts in 2022.
www.cellos.blog
July 25, 2025 at 5:23 AM
selmaohneh.bsky.social
Lessons Learned: Building a Cross-Platform App with AI

www.cellos.blog/lessons-lear...

#softwaredevelopment #ai #bbq
Lessons Learned: Building a Cross-Platform App with AI
I developed an app for Android and iOS without writing a single line of code. I even had no prior experience with the programming language used. All of this was thanks to an AI agent, which I also had never used before. That sounds pretty impressive ...
www.cellos.blog
July 23, 2025 at 7:58 AM
selmaohneh.bsky.social
A valued colleague of mine once told me jokingly that I had the gift of dumbing down complicated things until even he understands it.

That’s why I started to blog.

Even if a blog post might seem like just another explanation of a certain topic, it could be the one that finally clicks for someone.
July 11, 2025 at 7:32 AM
selmaohneh.bsky.social
Ever had Peanut Butter on your Burger? Tastes amazing!

#bbq #grill #grillen
June 22, 2025 at 4:52 AM
selmaohneh.bsky.social
🤤

#bbq #grill #grilling
June 16, 2025 at 8:47 AM
selmaohneh.bsky.social
June 14, 2025 at 1:27 PM
selmaohneh.bsky.social
Garlic-Chili Bread

#bbq #grill
June 9, 2025 at 4:01 AM
selmaohneh.bsky.social
Grilled some turkish Köfte. The flames looked beautiful... 🔥

#bbq #grill
June 8, 2025 at 5:46 AM
selmaohneh.bsky.social
Just published an Android app for BBQ lovers. 🥳

It's called BBQ Buddy and let's you track your grill sessions with all the details. 🥩🌶️🌽

Check it out to get insights in your grilling behavior and unlock fun achievements! 🏆

play.google.com/store/apps/d...

#grill #grilling #grillen #bbq
BBQ Buddy - Apps on Google Play
Never forget a BBQ! Track grill sessions. Get statistics for BBQ nerds.
play.google.com
June 7, 2025 at 6:05 AM
selmaohneh.bsky.social
Currently working on an app for BBQ nerds... ever unlocked an achievement whilst grilling? :D

#bbq #grill
June 5, 2025 at 8:07 PM
selmaohneh.bsky.social
I hacked someone's blog! 💻🔓

www.cellos.blog/hack-the-box...

Of course, totally legally on @hackthebox.bsky.social. 😀

Took me quite a few hours, but it was worth the pain since I am preparing for my first certification from @offsectraining.bsky.social ! 🚀

#cybersecurity #ctf #hackthebox
Hack The Box: Nibbles
This is my walkthrough for the machine Nibbles on Hack The Box.\nEnumeration As usual we are only given the IP of our target machine. For convenience let’s add that IP into our /etc/hosts file. That w...
www.cellos.blog
January 24, 2025 at 9:34 PM
selmaohneh.bsky.social
My guests' favorite automation is dumb as hell... 🤣

www.cellos.blog/my-guests-fa...

#homeassistant #smarthome
My guests' favorite automation is dumb as hell
I’ve installed quite some smart home stuff in my house. Some projects I’m really proud of, like the music box I built for my daughter. Others are super nerdy, like the smart meter I made for my gas me...
www.cellos.blog
January 14, 2025 at 8:57 AM
selmaohneh.bsky.social
Got tired of manually switching between HDMI sources and finally got rid of my old IR remote: Home Assistant to the Rescue!

www.cellos.blog/smart-hdmi-s...

#homeassistant #smarthome
Smart HDMI Switching with Home Assistant
The Problem I recently became the proud owner of a Steam Deck. Most of the time I play comfortably on the couch in handheld mode, but every now and then I want to throw a game onto the screen via my p...
www.cellos.blog
January 6, 2025 at 12:02 PM
selmaohneh.bsky.social
Cybersecurity Awareness Month is already over. Still here is a little social engineering anecdote i want to share with you.

Be honest - would you have fallen for that trick?

www.cellos.blog/i-have-nothi...

#phishing #cybersecurity
I have nothing to hide - A dangerous mindset in the age of OSINT
I often hear the argument “I have nothing to hide” when talking about data privacy. This argument, of course, is a little naive. Some time ago I came across a story that shows how easy it is to find e...
www.cellos.blog
November 4, 2024 at 2:12 PM
selmaohneh.bsky.social
From urinals to cookies: Are you aware you're being unconsciously influenced?

www.cellos.blog/cookie-nudgi...

#privacy #cybersecurity
Cookie Nudging
Recently, I heard the term cookie nudging for the first time in a podcast and, to be honest, I had to research what that means exactly.\nNudging Nudging means influencing a person in a desired directi...
www.cellos.blog
October 4, 2024 at 7:21 AM
selmaohneh.bsky.social
Where is your spare key hidden? What if a burglar finds it?

Here is an overkill-bullet-proof solution for that problem. 😀

#homeassistant #smarthome

www.cellos.blog/key-safe-ove...
Key Safe Overkill: Better Safe than Sorry
I bet you have a spare key for your home hidden somewhere on your property!\nIs it in the garden? Maybe disguised as a rock? Is it right under the doormat? Do your neighbors have it? No matter where i...
www.cellos.blog
October 2, 2024 at 7:49 AM
selmaohneh.bsky.social
I made my dumb washing machine smart. 🤩

#homeassistant #smarthome

www.cellos.blog/benefits-of-...
#smarthome #homeassistant
Benefits of Smart Laundry
We have kids. Having kids comes with having lots of laundry. Our washing machine runs nearly every day. God forbid if we’d forget to hang out a single load of laundry. The pile would stack up indefini...
www.cellos.blog
September 30, 2024 at 12:06 PM
selmaohneh.bsky.social
Goodbye Google!

Weekly reminder on why and how data privacy matters.

#google #privacy

www.cellos.blog/reclaiming-p...
Reclaiming Privacy: How I Got Rid of Google Photos
I am a privacy nerd in many areas. Since discovering privacytools.io, I have been on a mission to replace all Google services I use.\nOne big skeleton that I had in my closet until recently is Google ...
www.cellos.blog
September 27, 2024 at 12:12 PM
selmaohneh.bsky.social
Home Assistant saves me quite some money. A little energy optimization is good for your wallet!

#homeassistant #smarthome #savings

www.cellos.blog/how-home-ass...
How Home Assistant saves me 250€ every year
The gas price went nuts in 2022. Thanks to Home Assistant I was able to save quite some money without losing any convenience. Here is how.\nStep 1: Gathering data My house is heated by a gas heater. T...
www.cellos.blog
September 24, 2024 at 6:29 AM