Sign in

Kea Sigma Delta

@keasigmadelta.bsky.social
16 followers 64 following 94 posts

We enjoy creating awesome stuff using software & electronics, and helping others to do the same.

PostsRepliesMedia
Kea Sigma Delta @keasigmadelta.bsky.social · 10/08/2026
Do You Actually Like Coding?
keasigmadelta.com
000
Kea Sigma Delta @keasigmadelta.bsky.social · 20/07/2026
I Built a SaaS in C++ Using Drogon. It’s Great… Except for These Two Things
keasigmadelta.com
010
Kea Sigma Delta @keasigmadelta.bsky.social · 18/07/2026
Help! I'm very happy with Order Hand's new compact ordering UI. But, I'm in danger of over-polishing the MVP, and delaying the launch. Or, have I already overcooked it? #buildinpublic
150
Kea Sigma Delta @keasigmadelta.bsky.social · 08/07/2026
The Hidden Trap of “Scratch Your Own Itch”
keasigmadelta.com
000
Kea Sigma Delta @keasigmadelta.bsky.social · 24/06/2026
Everyone told me not to build a SaaS in C++
keasigmadelta.com
000
Kea Sigma Delta @keasigmadelta.bsky.social · 22/06/2026
The "Wife MVP" of my sales recorder/tracker for WhatsApp is done! I just added product editing, deleting and archiveing to Order Hand. The app now has the minimal feature-set that my wife needs to actually use it. Next milestones: billing and a public MVP.
000
Kea Sigma Delta @keasigmadelta.bsky.social · 22/06/2026
The Wife MVP Is Complete: From Spreadsheet Chaos to Order Tracking
keasigmadelta.com
000
Kea Sigma Delta @keasigmadelta.bsky.social · 08/06/2026
OOP – What is it good for?
keasigmadelta.com
000
Kea Sigma Delta @keasigmadelta.bsky.social · 26/05/2026
I Built My Wife a Sales Tracker… She Went Back to Spreadsheets
keasigmadelta.com
000
Kea Sigma Delta @keasigmadelta.bsky.social · 19/05/2026
People THINK C++ is hard; It isn’t
keasigmadelta.com
000
Kea Sigma Delta @keasigmadelta.bsky.social · 18/05/2026
To keep you safe, TikTok won't allow you to watch my videos, and I can't follow your channel. So, videos about software development are too scary and/or depressing for you to see... 🤡
000
Kea Sigma Delta @keasigmadelta.bsky.social · 11/05/2026
Why I’m Building a Sales Tracker for WhatsApp Sellers
keasigmadelta.com
000
Kea Sigma Delta @keasigmadelta.bsky.social · 04/05/2026
I Wasted a Day Building This… Then Fixed It in 10 Minutes
keasigmadelta.com
000
Kea Sigma Delta @keasigmadelta.bsky.social · 28/04/2026
I Built a SaaS in 2 Weeks… Then My Wife Used It at the Market
keasigmadelta.com
I Built a SaaS in 2 Weeks… Then My Wife Used It at the Market - Kea Sigma Delta
2 weeks ago I said that I'd build a SaaS app in C++ in 2 weeks. It’s an app for quickly recording sales made in person, and via WhatsApp. It's something my
000
Kea Sigma Delta @keasigmadelta.bsky.social · 11/04/2026
Change of Plans: Building a C++ SaaS in 2 Weeks
keasigmadelta.com
000
Kea Sigma Delta @keasigmadelta.bsky.social · 23/03/2026
Did I Break My “No Build in Public” Rule? What Actually Happened
keasigmadelta.com
Did I Break My “No Build in Public” Rule? What Actually Happened - Kea Sigma Delta
Last October, I declared that I wouldn’t be building my SaaS app in public. Since then, I’ve been posting videos of me building low-level SaaS code with the
010
Kea Sigma Delta @keasigmadelta.bsky.social · 14/03/2026
SQLite Works in Production… But Drogon Makes It Hard
keasigmadelta.com
SQLite Works in Production… But Drogon Makes It Hard - Kea Sigma Delta
SQLite has gotten so good, that companies like 37signals are now using it in real apps in production.
000
Kea Sigma Delta @keasigmadelta.bsky.social · 05/03/2026
Drogon Doesn’t Have Database Migrations… So I Built One
keasigmadelta.com
Drogon Doesn't Have Database Migrations... So I Built One - Kea Sigma Delta
Drogon doesn't have database migrations, so I built one. Before I show you how it works, though, let's address the two elephants in the room:
000
Kea Sigma Delta @keasigmadelta.bsky.social · 25/02/2026
I Rebuilt Drogon’s Login Example Using the ORM
keasigmadelta.com
I Rebuilt Drogon's Login Example Using the ORM - Kea Sigma Delta
Drogon ships with a login example… that uses MD5 password hashing on a single hardcoded user account. MD5? In 2026? My goodness! Even the author warns you not
000
Kea Sigma Delta @keasigmadelta.bsky.social · 13/02/2026
I Wasn’t Going to Release This… (The CMake Tutorial Source Code Pack)
keasigmadelta.com
I Wasn’t Going to Release This… (The CMake Tutorial Source Code Pack) - Kea Sigma Delta
I wasn't going to do this, but I've decided to release all of the examples/templates that I wrote for The CMake Tutorial in a source-code pack.I had good
000
Kea Sigma Delta @keasigmadelta.bsky.social · 03/02/2026
Drogon Gives You 4 Ways to Do One Thing — Here’s the Right One
keasigmadelta.com
Drogon Gives You 4 Ways to Do One Thing — Here’s the Right One - Kea Sigma Delta
I've been learning how to use Drogon's ORM, and noticed something weird. Drogon lets you do the same database queries four different ways. Three of them are
000
Kea Sigma Delta @keasigmadelta.bsky.social · 26/12/2025
You might think that I'm just playing, but I'm actually teaching my child about the laws of physics. 😉
010
Kea Sigma Delta @keasigmadelta.bsky.social · 26/12/2025
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!
000
Kea Sigma Delta @keasigmadelta.bsky.social · 06/12/2025
Can C++ Power a SaaS Backend? Trying the Drogon Framework
keasigmadelta.com
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
000
Kea Sigma Delta @keasigmadelta.bsky.social · 27/11/2025
Installing Ubuntu on Windows. Hmmm...
000
Kea Sigma Delta @keasigmadelta.bsky.social · 19/11/2025
I’m Shutting Down the Kea Campus – Get the Archive
keasigmadelta.com
I'm Shutting Down the Kea Campus - Get the Archive - Kea Sigma Delta
Click here to get the archive.
000
Kea Sigma Delta @keasigmadelta.bsky.social · 19/11/2025
Kea Campus' Amiga Corner Is Closing – Grab the archive here: keasigmadelta.com/kea-campus-a...
000
Kea Sigma Delta @keasigmadelta.bsky.social · 18/11/2025
The Amiga Corner Is Closing – Grab the Archive
keasigmadelta.com
The Amiga Corner Is Closing – Grab the Archive - Kea Sigma Delta
Click here to get the full Kea Campus archive.
000
Kea Sigma Delta @keasigmadelta.bsky.social · 29/10/2025
Porting my Raylib + Dear ImGui Template to AmigaOS 4
keasigmadelta.com
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
000
Kea Sigma Delta @keasigmadelta.bsky.social · 23/10/2025
Why I’m NOT building my SAAS app in Public…
keasigmadelta.com
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.
000
Kea Sigma Delta @keasigmadelta.bsky.social · 14/10/2025
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.
000
Kea Sigma Delta @keasigmadelta.bsky.social · 09/10/2025
🚀 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
000
Kea Sigma Delta @keasigmadelta.bsky.social · 29/09/2025
Building Raylib on AmigaOS 4
keasigmadelta.com
Building Raylib on AmigaOS 4 - Kea Sigma Delta
To build raylib on AmigaOS 4, you will need:
000
Kea Sigma Delta @keasigmadelta.bsky.social · 15/09/2025
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.
000
Kea Sigma Delta @keasigmadelta.bsky.social · 12/09/2025
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?
000
Kea Sigma Delta @keasigmadelta.bsky.social · 02/09/2025
Finally! A Raylib Template That Works on AmigaOS 4 Out of the Box
keasigmadelta.com
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
000
Kea Sigma Delta @keasigmadelta.bsky.social · 29/08/2025
I Built a QR Code Stingless Bee Hive Labeller in 1 Day (Raylib + Dear ImGui). Here's how... youtu.be/YmsMdY6OSW0
youtu.be
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…
000
Kea Sigma Delta @keasigmadelta.bsky.social · 28/08/2025
I Built a QR Code Stingless Bee Hive Labeller in 1 Day (Raylib + Dear ImGui). Here's how... youtu.be/-aOT9u5Xlik
youtu.be
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…
000
Kea Sigma Delta @keasigmadelta.bsky.social · 26/08/2025
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...
031
Kea Sigma Delta @keasigmadelta.bsky.social · 22/08/2025
Your MVP Is Probably Wrong (Why Most Startup Founders Mess This Up — Including Me)
keasigmadelta.com
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
000
Kea Sigma Delta @keasigmadelta.bsky.social · 20/08/2025
Raylib: Hide the Console Window on Windows Release Builds
keasigmadelta.com
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
000
Kea Sigma Delta @keasigmadelta.bsky.social · 11/08/2025
Stop SQLite Injection Attacks in Their Tracks (SQLite C Tutorial)
keasigmadelta.com
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
000
Kea Sigma Delta @keasigmadelta.bsky.social · 08/08/2025
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.
000
Kea Sigma Delta @keasigmadelta.bsky.social · 08/08/2025
SQLite in C: How to Add and Query Data (INSERT + SELECT Tutorial)
keasigmadelta.com
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
010
Kea Sigma Delta @keasigmadelta.bsky.social · 07/08/2025
How to Use the World’s Most Used SQL Database in C (SQLite Quickstart)
keasigmadelta.com
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
000
Kea Sigma Delta @keasigmadelta.bsky.social · 04/08/2025
Relational Databases Are Awesome (You’re Using One Right Now!)
keasigmadelta.com
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
000
Kea Sigma Delta @keasigmadelta.bsky.social · 24/07/2025
How To Build Raylib Apps for AmigaOS4 via Cross-Compiler
keasigmadelta.com
How To Build Raylib Apps for AmigaOS4 via Cross-Compiler - Kea Sigma Delta
Links mentioned in the video:
021
Kea Sigma Delta @keasigmadelta.bsky.social · 07/07/2025
An explanation of web app development is so good that you'll want to put it on a shirt (see the link above)! Front-end, back-end, and full stack. It'll become crystal clear. Even your grandma will get it... Get it on a poster or a shirt? Click this link: keasigmadelta.com/web-dev-expl...
010
Kea Sigma Delta @keasigmadelta.bsky.social · 09/06/2025
Compiling multiple C/C++ files into one program is actually easy... once you know how.
000
Kea Sigma Delta @keasigmadelta.bsky.social · 06/06/2025
So many beginner C/C++ tutorials and books skip over how to compile code to a working program. Here's how it's done with CMake...
000