Kea Sigma Delta
@keasigmadelta.bsky.social
We enjoy creating awesome stuff using software & electronics, and helping others to do the same.
You might think that I'm just playing, but I'm actually teaching my child about the laws of physics. 😉
December 26, 2025 at 5:49 PM
You might think that I'm just playing, but I'm actually teaching my child about the laws of physics. 😉
For all who live far and near,
I pray you enjoy much Christmas cheer.
Take your time; have a rest,
And may your life be abundantly blest.
Merry Christmas and Happy New Year!
I pray you enjoy much Christmas cheer.
Take your time; have a rest,
And may your life be abundantly blest.
Merry Christmas and Happy New Year!
December 26, 2025 at 9:43 AM
For all who live far and near,
I pray you enjoy much Christmas cheer.
Take your time; have a rest,
And may your life be abundantly blest.
Merry Christmas and Happy New Year!
I pray you enjoy much Christmas cheer.
Take your time; have a rest,
And may your life be abundantly blest.
Merry Christmas and Happy New Year!
Can C++ Power a SaaS Backend? Trying the Drogon Framework
Can C++ Power a SaaS Backend? Trying the Drogon Framework - Kea Sigma Delta
I’m planning to build my SaaS server in C++ using the Drogon framework… never used it before, but it looks promising. First step: build Drogon and tinker with
keasigmadelta.com
December 6, 2025 at 9:43 AM
Can C++ Power a SaaS Backend? Trying the Drogon Framework
Installing Ubuntu on Windows. Hmmm...
November 27, 2025 at 9:43 AM
Installing Ubuntu on Windows. Hmmm...
I’m Shutting Down the Kea Campus – Get the Archive
I'm Shutting Down the Kea Campus - Get the Archive - Kea Sigma Delta
Click here to get the archive.
keasigmadelta.com
November 19, 2025 at 5:49 PM
I’m Shutting Down the Kea Campus – Get the Archive
Kea Campus' Amiga Corner Is Closing – Grab the archive here: keasigmadelta.com/kea-campus-a...
November 19, 2025 at 9:44 AM
Kea Campus' Amiga Corner Is Closing – Grab the archive here: keasigmadelta.com/kea-campus-a...
The Amiga Corner Is Closing – Grab the Archive
The Amiga Corner Is Closing – Grab the Archive - Kea Sigma Delta
Click here to get the full Kea Campus archive.
keasigmadelta.com
November 18, 2025 at 5:49 PM
The Amiga Corner Is Closing – Grab the Archive
Porting my Raylib + Dear ImGui Template to AmigaOS 4
Porting my Raylib + Dear ImGui Template to AmigaOS 4 - Kea Sigma Delta
I've just reworked my Raylib + Dear ImGUI template to compile out-of-the-box on AmigaOS 4.1. My goal is to be able to write software for AmigaOS 4, while
keasigmadelta.com
October 29, 2025 at 5:49 PM
Porting my Raylib + Dear ImGui Template to AmigaOS 4
Why I’m NOT building my SAAS app in Public…
Why I'm NOT building my SAAS app in Public... - Kea Sigma Delta
I'm working on a SAAS app, and going against the current norm, I will NOT be building it in public.
keasigmadelta.com
October 23, 2025 at 4:49 PM
Why I’m NOT building my SAAS app in Public…
I've decided to cancel The CMake Tutorial video course. Why? Because creating video courses is very time intensive, and I need to focus on a different project.
Forget the course, get the book: cmaketutorial.com.
Use coupon code CMAKEBUNDLE20 at checkout by Sun 26 Oct.
Forget the course, get the book: cmaketutorial.com.
Use coupon code CMAKEBUNDLE20 at checkout by Sun 26 Oct.
October 14, 2025 at 2:56 PM
I've decided to cancel The CMake Tutorial video course. Why? Because creating video courses is very time intensive, and I need to focus on a different project.
Forget the course, get the book: cmaketutorial.com.
Use coupon code CMAKEBUNDLE20 at checkout by Sun 26 Oct.
Forget the course, get the book: cmaketutorial.com.
Use coupon code CMAKEBUNDLE20 at checkout by Sun 26 Oct.
🚀 New! The Print + Digital Bundle for The CMake Tutorial is here.
Learn CMake your way — with a printed reference *and* searchable digital copy.
Get 20% off any version (digital, print, or bundle) with code CMAKEBUNDLE20.
🕒 Offer ends midnight 26 Oct.
👉 cmaketutorial.com
Learn CMake your way — with a printed reference *and* searchable digital copy.
Get 20% off any version (digital, print, or bundle) with code CMAKEBUNDLE20.
🕒 Offer ends midnight 26 Oct.
👉 cmaketutorial.com
October 9, 2025 at 4:49 PM
🚀 New! The Print + Digital Bundle for The CMake Tutorial is here.
Learn CMake your way — with a printed reference *and* searchable digital copy.
Get 20% off any version (digital, print, or bundle) with code CMAKEBUNDLE20.
🕒 Offer ends midnight 26 Oct.
👉 cmaketutorial.com
Learn CMake your way — with a printed reference *and* searchable digital copy.
Get 20% off any version (digital, print, or bundle) with code CMAKEBUNDLE20.
🕒 Offer ends midnight 26 Oct.
👉 cmaketutorial.com
Building Raylib on AmigaOS 4
Building Raylib on AmigaOS 4 - Kea Sigma Delta
To build raylib on AmigaOS 4, you will need:
keasigmadelta.com
September 29, 2025 at 4:49 PM
Building Raylib on AmigaOS 4
I’ve been writing software for decades — but not for the reasons most people expect. It’s not about money, or even about automating tasks. In this video, I share the real reason why I write software, and why coding is special.
September 15, 2025 at 8:43 AM
I’ve been writing software for decades — but not for the reasons most people expect. It’s not about money, or even about automating tasks. In this video, I share the real reason why I write software, and why coding is special.
Most annoying problem with Flutter so far: while debugging it regularly reverts to an old version of the code on my phone.
Is this a Flutter thing? Or an Android problem?
Is this a Flutter thing? Or an Android problem?
September 12, 2025 at 4:49 PM
Most annoying problem with Flutter so far: while debugging it regularly reverts to an old version of the code on my phone.
Is this a Flutter thing? Or an Android problem?
Is this a Flutter thing? Or an Android problem?
Finally! A Raylib Template That Works on AmigaOS 4 Out of the Box
Finally! A Raylib Template That Works on AmigaOS 4 Out of the Box - Kea Sigma Delta
Yes, I've done it! I've built a template that allows you to build a multi-platform on AmigaOS 4, natively, out-of-the-box. This means no installing of
keasigmadelta.com
September 2, 2025 at 8:43 AM
Finally! A Raylib Template That Works on AmigaOS 4 Out of the Box
I Built a QR Code Stingless Bee Hive Labeller in 1 Day (Raylib + Dear ImGui). Here's how...
youtu.be/YmsMdY6OSW0
youtu.be/YmsMdY6OSW0
I Built a QR Code Stingless Bee Hive Labeller in 1 Day (Raylib + Dear ImGui)
Curious about the stingless bee app? Click here: https://keasigmadelta.com/bees
My wife and I have started keeping stingless bees — known as kelulut in Malay, ‘native bees’ in Australia, and…
youtu.be
August 29, 2025 at 8:43 AM
I Built a QR Code Stingless Bee Hive Labeller in 1 Day (Raylib + Dear ImGui). Here's how...
youtu.be/YmsMdY6OSW0
youtu.be/YmsMdY6OSW0
I Built a QR Code Stingless Bee Hive Labeller in 1 Day (Raylib + Dear ImGui). Here's how...
youtu.be/-aOT9u5Xlik
youtu.be/-aOT9u5Xlik
I Built a QR Code Stingless Bee Hive Labeller in 1 Day (Raylib + Dear ImGui)
Curious about the stingless bee app? Click here: https://keasigmadelta.com/bees
My wife and I have started keeping stingless bees — known as kelulut in Malay, ‘native bees’ in Australia, and…
youtu.be
August 28, 2025 at 8:43 AM
I Built a QR Code Stingless Bee Hive Labeller in 1 Day (Raylib + Dear ImGui). Here's how...
youtu.be/-aOT9u5Xlik
youtu.be/-aOT9u5Xlik
I did it! I've managed to create a raylib template that builds natively on AmigaOS 4, and on all other major platforms. No installing of dependencies or other hackery. Just a cmake configure and build.
Join the Kea Campus' Amiga corner to watch it right now: keasigmadelta.com/kea-campus-a...
Join the Kea Campus' Amiga corner to watch it right now: keasigmadelta.com/kea-campus-a...
August 26, 2025 at 4:49 PM
I did it! I've managed to create a raylib template that builds natively on AmigaOS 4, and on all other major platforms. No installing of dependencies or other hackery. Just a cmake configure and build.
Join the Kea Campus' Amiga corner to watch it right now: keasigmadelta.com/kea-campus-a...
Join the Kea Campus' Amiga corner to watch it right now: keasigmadelta.com/kea-campus-a...
Your MVP Is Probably Wrong (Why Most Startup Founders Mess This Up — Including Me)
Your MVP Is Probably Wrong (Why Most Startup Founders Mess This Up — Including Me) - Kea Sigma Delta
The MVP (Minimum Viable Product) that you're making is probably "wrong." Mine have been too. In fact, I caught myself making one of the three most common
keasigmadelta.com
August 22, 2025 at 8:43 AM
Your MVP Is Probably Wrong (Why Most Startup Founders Mess This Up — Including Me)
Raylib: Hide the Console Window on Windows Release Builds
Raylib: Hide the Console Window on Windows Release Builds - Kea Sigma Delta
I was finishing a Raylib project last week when I hit something annoying. Windows kept opening a console window in every build, even the release version. The
keasigmadelta.com
August 20, 2025 at 4:49 PM
Raylib: Hide the Console Window on Windows Release Builds
Stop SQLite Injection Attacks in Their Tracks (SQLite C Tutorial)
Stop SQLite Injection Attacks in Their Tracks (SQLite C Tutorial) - Kea Sigma Delta
What if a hacker could modify or delete your app's database without needing to log in? That's possible if you write poor code. Today I'm going to show you
keasigmadelta.com
August 11, 2025 at 4:49 PM
Stop SQLite Injection Attacks in Their Tracks (SQLite C Tutorial)
My wife and I have started keeping stingless bees (lebah kelulut in Malay). Using spreadsheets or notebooks sucks for keeping track of hive performance and other details. So, I'm planning to write an app.
Here are a few screenshots of the hive labeller's early prototype.
Here are a few screenshots of the hive labeller's early prototype.
August 8, 2025 at 4:49 PM
My wife and I have started keeping stingless bees (lebah kelulut in Malay). Using spreadsheets or notebooks sucks for keeping track of hive performance and other details. So, I'm planning to write an app.
Here are a few screenshots of the hive labeller's early prototype.
Here are a few screenshots of the hive labeller's early prototype.
SQLite in C: How to Add and Query Data (INSERT + SELECT Tutorial)
SQLite in C: How to Add and Query Data (INSERT + SELECT Tutorial) - Kea Sigma Delta
In the previous episode we created a database with a users table. But, the table was empty. Today, we're going to write code to add some users, and then run a
keasigmadelta.com
August 8, 2025 at 8:43 AM
SQLite in C: How to Add and Query Data (INSERT + SELECT Tutorial)
How to Use the World’s Most Used SQL Database in C (SQLite Quickstart)
How to Use the World's Most Used SQL Database in C (SQLite Quickstart) - Kea Sigma Delta
SQLite is the world's most used relational database for one simple reason: it's easy to integrate it into your app. No database connections or user accounts
keasigmadelta.com
August 7, 2025 at 9:18 AM
How to Use the World’s Most Used SQL Database in C (SQLite Quickstart)
Relational Databases Are Awesome (You’re Using One Right Now!)
Relational Databases Are Awesome (You're Using One Right Now!) - Kea Sigma Delta
Most people think that relational databases are boring, but they're awesome! Why else would they be one of the most used technologies in the world. You're
keasigmadelta.com
August 4, 2025 at 8:43 AM
Relational Databases Are Awesome (You’re Using One Right Now!)