2023-01-18 13:24
In part 8 of this challenge, physics simulation was added so that Scarfy could walk on the terrain. Today, I'm going to add atmosphere with background music. That might sound simple, and the… Read More
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Kea Sigma Delta develops fast photo colour correction software to help you fix up (rescue/enhance) photos that didn't turn out quite right.
2022-12-24 11:42
I wish you Read More
2022-12-23 03:35
Show/Hide the Status Icon (Docky, SysTray Icon, etc.)One user said he didn't want the status icon, and asked how to remove it. Now that he mentioned it, having control over the docky/SysTray… Read More
2022-12-19 11:16
Part 7 of this challenge got a 2D camera working that smoothly tracks the player. Everything looks great until Scarfy walks too far in either direction. At that point it's obvious that the g… Read More
2022-11-07 09:21
What to do Read More
2022-10-26 04:23
The AmiWest Amiga computer show was last weekend, and I unveiled some of what's coming for ZitaFTP Server. ZitaFTP Server was never meant to be "just another FTP server." I always had bigger… Read More
2022-09-26 12:45
Part 6 of the RayLib 2D Challenge got the 2D tile-map displaying, but scarfy could easily walk off the screen. His 2D world is larger than the screen, but there's no player tracking camera… Read More
2022-09-19 08:49
Some users reported having a crash on startup with the new ZitaFTP Server released last week. It was caused by a thread that was missing AmiSSL initialization. AmiSSL requires special initia… Read More
2022-09-12 02:03
ZitaFTP Server v1.34 has just been released, and can be downloaded here. This version marks a major milestone: it's no longer a pre-release.No, this doesn't mean it's perfect. I have plenty… Read More
2022-08-29 09:56
Good news! Tileson can now handle "collection of images" tile maps. At least, my version does. I've yet to share the changes back. Either way, it means we can get to work. Click here to… Read More
2022-08-22 09:10
Today's video was triggered by unnecessary complexity. Ironically, today's video nearly didn't happen thanks to unnecessary complexity. Windows Camera stopped being able to use my webcam, Lo… Read More
2022-08-08 10:10
This is NOT what I was planning on writing. I was going to load the tile map created last time, so that Scarfy had a world to run around in. I'd chosen a third-party library to do the Read More
2022-07-18 12:47
So far, Scarfy has a title screen & menu, and can run and jump with sound effects. It's high time that a world is built for him to run around in. That's what I'm going to today. Watch th… Read More
2022-06-27 13:34
Part 4 of the RayLib 2D Challenge was supposed to be adding an environment for scarfy to walk around in. I'm short of time, though, so I decided it was time to add the game menu. RayLib's ra… Read More
2022-06-21 08:06
I'm pleased to announce that ZitaFTP Server v1.33 is out now, and available for download. As usual, it's got one major new feature, and fixes for a bunch of niggling little issues.Free Autom… Read More
2022-05-31 03:57
The code was starting to get a bit complex, in part 2 of this challenge. Despite my efforts, code for different tasks were getting mixed. It's clearly time to add some structure to the code… Read More
2022-05-16 12:34
A while ago I setup a BTCPay Server so that Kea Sigma Delta could accept payments in bitcoin (and others). If you're considering doing the same then this post is for you. Let's have a look a… Read More
2022-05-09 09:36
I showed my wife the first RayLib challenge, and the first words out of her mouth were, "can he jump?" Uh, no. Scarfy can't jump. So, today I'm going to give scarfy the ability to jump, and… Read More
2022-05-02 09:20
ZitaFTP Server v1.32 is finished, and available for download (click here). It's missing the big new feature I had planned because I couldn't get it finished in time, and didn't want to delay… Read More
2022-04-25 11:22
I've heard great things about RayLib. It is, I've been told, so easy to use that all you really need is the cheat-sheet, and maybe a quick look at the examples. To date, I never got beyond c… Read More
2022-04-12 03:39
I'm pleased to announce that you can now pay for items in the Kea Sigma Delta store using cryptocurrencies. Specifically:Bitcoin (BTC), including with the Lightning Network (LN)
Litecoin (LT… Read More
2022-03-28 05:38
Microsoft SmartScreen is a pain in the butt for developers. It pops up scary warnings for files that it doesn't recognize, telling the user that they're potentially harmful. That's why I got… Read More
2022-03-21 08:38
You're writing a program that connects to a server, and want to store the user's login details for their convenience. How do you do so securely?Short answer: you won't like any of the sugges… Read More
2022-03-07 11:57
The latest version of ZitaFTP makes it relatively easy to get your file server online, complete with its own domain. That way you can access your files from anywhere in the world, including… Read More
2022-02-21 14:23
I'm pleased to announce that the first ZitaFTP Server update for 2022 is finally here! As usual, there are bug fixes and improvements. The big new feature is that you can now use proper sign… Read More
2022-02-07 05:44
T'is the season of technical problems. Last time I talked about software issues that held back progress. This time, it's bugs. Real bugs. Ants, to be precise.I was away for Chinese New Year… Read More
2022-01-24 05:29
Technology. When it works, it's great. Amazing things can be done with technology. When it fails, though, it becomes a frustrating time sucking monster. ZitaFTP's latest update was supposed… Read More
2022-01-17 08:04
Last blog post I mentioned that you should never store passwords in plain text on a server. Actually, you shouldn't store passwords in plain text on any computer, including servers. Here's w… Read More
2022-01-10 07:41
If you're writing a network server like I am with ZitaFTP, then you may be tempted to create a custom encryption algorithm to store some data. Your reasoning would be: it'll be secure becaus… Read More
2021-12-20 05:56
It's nearly Christmas, so I'll be taking some time off soon to celebrate Christmas, and to relax. So, from us to you: Merry Christmas and a Happy New Year!I know that many people are worse o… Read More
2021-12-13 09:10
There's no ZitaFTP Server release this week, because last week I was busy paying down some technical debt instead of making progress.What is Technical Debt?It's a business/entrepreneur term… Read More
2021-12-06 11:21
A few months ago I started having trouble where ZitaFTP Server sometimes wouldn't be able to bind to its data ports. The error was confusing: "permission denied."Permission denied? What? The… Read More
2021-11-29 07:00
At least two people felt the need to explain the difference between FTPS & SFTP to me in detail after I released ZitaFTP Server. It's a testament to how confusing all these acronyms can… Read More
2021-11-22 09:34
Kea Sigma Delta had its 10th birthday just over a week ago (14 November). I wish I could say that it's been a resounding success, but business and entrepreneurship aren't like that. Most com… Read More
2021-11-01 10:30
I have a new ZitaFTP Server update for you. This one has a major new feature that's almost invisible (and that's by design). The new feature is: countermeasures against password cracking. It… Read More
2021-10-25 11:58
I'm going to Read More
2021-10-20 12:37
I'm pleased to be able to "let the cat out of the bag" about NovaBridge. It's something I've been working on for a while to solve an annoying problem: backward compatibility for old Warp3D s… Read More
2021-10-18 06:05
I created ZitaFTP Server in part because I needed an efficient way to compile my software on one machine, and test it on another (an Amiga). This helps especially with driver development, be… Read More
2021-10-04 05:57
I'm sad to announce that I'm shutting down the DIY MiniITX laptop project. At least, for now. The reason is simple: the chance of recouping the investment needed are slim, and I need to focu… Read More
2021-09-24 05:49
This should make Amiga computer fans smile: alternativeto.net has AmigaOS amongst its list of known platforms. I discovered it while adding ZitaFTP Server to its list of FTP servers. It was… Read More
2021-09-20 08:24
Need a secure file server? Watch the video above to see how you can quickly install and set up ZitaFTP Server on Windows. Or, read the instructions below...Download ZitaFTP ServerIf you have… Read More
2021-08-30 07:53
Yes, it's been a long time coming, and it's finally here! I first hinted at there being a Windows version of ZitaFTP over a year ago. I'm a little nervous about releasing it (always am with… Read More
2021-08-16 07:40
A beta tester recently told me that ZitaFTP Server didn't work on his Windows Home machine. It works fine on my Windows 10 Pro machine (and also Windows Enterprise), so we suspect that it mi… Read More
2021-08-02 02:14
The new USB-C power bank has arrived. So, how did it do as a battery for the DIY laptop?In brief:The power bank delivers plenty of power for the motherboard, GPU, and other peripherals
It ca… Read More
2021-06-28 02:25
The new, slightly larger LCD panel has arrived, as has a PCIe riser plus mounting frame. Someone else warned me that multiple PCIe risers that he tried didn't work, a good reminder that ever… Read More
2021-06-21 08:44
I've been playing around with alt. tech. platforms. So, you can now use some of them to get your Kea Sigma Delta news, if that's your preferred channel...Why Alt. Tech?The tech. giants have… Read More
2021-06-07 07:37
I'm pleased to announce another ZitaFTP Server update is available now. This is version 1.21, and it's primarily a bug-fix and fault tolerance update. Here's what's new:Multiple bug-fixes: F… Read More
2021-05-31 09:42
The laptop project has stalled. I'm waiting for some components to arrive, and I can't order the replacement USB power bank I need, because it's out-of-stock. It's been out-of-stock for over… Read More
2021-05-24 02:59
There's a 20% off coupon available, which I created after a discussion with an existing user. That coupon can be used by anyone, but it expires end of this month (May 2021). So, if you're co… Read More
2021-05-10 02:03
The USB-C battery pack has arrived; let the testing begin! At first glance it looks like the battery pack is working great. I had the machine fully running on battery power. However, there a… Read More
2021-04-26 11:24
Yes, another ZitaFTP Server update has just been released, and it's almost a milestone. More about that later. Here's what's new:The server settings can now be edited via the UI
Security/enc… Read More
2021-04-19 08:06
The original DIY laptop design used a small UPS with a home-made lithium ion battery pack. This works, but has a potential safety issue. There's no way to guarantee that the batteries you bu… Read More
2021-03-29 07:37
ZitaFTP Server v1.19 has just been released. It brings us a step closer to dropping the "pre-release" label with the following updates:Overwriting a file wasn't truncating it back to 0 (i.e… Read More
2021-03-23 00:59
I want to upgrade my DIY laptop's LCD screen, because I've found a bigger keyboard (more about that one later). Plus, I want a true 24-bit colour LCD panel. The current 14" panel is 18-bit… Read More
2021-03-01 05:25
It's important that the DIY laptop I'm designing has enough cooling, or it'll fry itself. So, I'm building a temperature logger that will be able to monitor the temperature in multiple locat… Read More
2021-02-15 07:31
Yes, it's back. The DIY Mini-ITX Laptop project has been restarted. I'm aiming to finish it this year. Watch the video above for more...Get Updates Before Everyone ElseThose who signed up to… Read More
2021-02-01 03:15
I'm pleased to announce that the next version of ZitaFTP Server for AmigaOS is now available to download. Here's a quick summary of what's new in v1.18:The quick configuration wizard now has… Read More
2021-01-18 05:36
2020-12-23 08:17
A new ZitaFTP Server update is available. It fixes a bug that literally prevents completely new users from trying it out. Here's what went wrong...I thought I'd tested it thoroughly, testing… Read More
2020-12-08 09:23
After a very long delay, I'm pleased to announce that the next update to ZitaFTP Server has finally been released! The previous release was back in May. Let's have a quick look at what's ins… Read More
2020-11-02 09:20
Years ago someone asked me if I would add the ability to write shader assembly to the graphics drivers I was writing. My reply was: you really don't want to do that. I've been working on add… Read More
2020-10-27 04:28
The next ZitaFTP update was supposed to be released yesterday. I was on track to finally get this long awaited and much delayed update finished, but then sickness hit. That left me with two… Read More
2020-10-19 03:32
Daily journalling is a key part of how I keep my projects moving. Without it I'd be wasting time every day trying to remember what I was up to, and what I should do next. That wasted time qu… Read More
2020-10-12 07:11
I've written multiple articles about eliminating waste in software development. This time, I'm going to delve into the biggest waste ever, which is:Writing software that nobody wants, or tha… Read More
2020-10-05 02:06
A few weeks ago I decided to check out Raylib, an open-source game engine written in C. It's different from other game engines such as Unity, Unreal, or Godot, because it has no editor to bu… Read More
2020-09-28 10:29
A few weeks ago I watched Ian Cooper's talk titled "Test Driven Design (TDD) - Where Did it All Go Wrong?" In it, he suggests being more like a duct tape programmer (first time round). It so… Read More
2020-09-21 07:24
Last week I stumbled on a documentary about 5G. The title suggested that 5G will bring about catastrophe. So, I decided to watch it...It was easy to watch, thanks to good editing and pacing… Read More
2020-09-14 06:12
I just checked, and it's been over 4 months since the last ZitaFTP Server update! The 5 month mark is approaching rapidly. I distinctly remember saying that I was aiming to have more regular… Read More
2020-09-07 06:28
If you've taken a programming course, the chances are that you've been told to write reusable code when possible. It certainly sounds great. Writing software is time consuming, so being able… Read More
2020-08-31 03:38
I have a confession to make: I didn't feel like recording a video or publishing anything. It's just one of those days where I have a lack of motivation. It happens...Yet, the video is record… Read More
2020-08-24 04:03
When I release software to testers, I don't actually want them to send me bug reports. I want them to tell me that it's working perfectly! Sadly, there's no way to prove that code has zero b… Read More
2020-08-17 04:19
Last week software development was frustratingly slow again. I'd fallen into one of the two major ways to waste time in software development... again. Here's a quick overview of what those t… Read More
2020-08-10 06:06
I recently had trouble with my laptop. The machine became almost unusable while Windows 10 was downloading updates. So, I decided to add more RAM and a faster SSD hard-drive. I'm pleased to… Read More
2020-08-03 04:11
I've recently been looking at ways to boost my productivity. I want to get more done in less time, so I have more free time for family and other things. Well, today I'm going to show you som… Read More
2020-07-27 06:48
Last week I released a video titled "Windows 10 Killed my Productivity." While true, this week I'm calling myself out on it. That's because I was effectively blaming Microsoft for my trouble… Read More
2020-07-27 06:48
Last week I released a video titled "Windows 10 Killed my Productivity." While true, this week I'm calling myself out on it. That's because I was effectively blaming Microsoft for my trouble… Read More
2020-07-20 04:20
I was going to release a ZitaFTP Server update today. Alas, I missed the target for various reasons, the most annoying of which is Windows 10 killing my productivity. Watch the video above t… Read More
2020-07-13 09:20
It's been about a month since I signed up to LBRY, and started syncing my YouTube videos there. LBRY is an alternative video sharing website. I signed up after watching a video about a black… Read More
2020-07-06 08:07
Ever had to put up with long compile times? If you've written software using compiled languages for a while, then I bet you have. Sooner or later, a project's size grows to the point where a… Read More
2020-06-29 05:02
Huh? Are people really asking that question? That was my reaction when seeing the question "Is it okay to use Stack Overflow at work?" But yes, someone asked the question. In fact, there are… Read More
2020-06-22 06:34
Ever felt like you're working like crazy, but getting nothing of value done? Yep, me too. It happens more often than I'd like to admit. There are plenty of ways you can go down a "rabbit hol… Read More
2020-06-15 07:15
In a previous video I recommended using deadlines to keep your project on track, and making sure that they're realistic deadlines (or target-dates, if deadlines are too scary). But, how do y… Read More
2020-06-08 08:07
Lately I've received an increase in queries about the DIY Mini-ITX laptop project that I was working on. Some assume that the project is dead. It's not; it's just sleeping. See the video abo… Read More
2020-06-01 02:50
It sounds counter-intuitive, but one of the easiest ways to boost your productivity is to simply limit the number of hours that you work. This was highlighted in an incident last week, when… Read More
2020-05-25 07:40
I've always been glad that C++ doesn't have a Garbage Collector (GC), because you have little control over when or how long they run. When you're dealing with video, games, or anything that… Read More
2020-05-18 09:14
Us software developers need to learn continually. New technologies arrive, new languages, new ways of doing things. Or, more likely, the next project requires that you use new libraries and/… Read More
2020-05-11 07:26
I'm going to pick on something this week, namely "when it's done." As in, "it'll be done when it's done." Or, "it'll be done in two more weeks." These phrases used to be common in the Amiga… Read More
2020-05-06 08:01
As promised earlier this week, ZitaFTP Server for AmigaOS has just been updated to version 1.13. This is another minor bug-fix release, which addresses a few niggling issues:Fixed a corner-c… Read More
2020-05-04 10:11
As promised, here's an update on ZitaFTP Server.Video SummaryNew Release this WeekA new version for AmigaOS should be out this week
It contains bug-fixes
Also updated to AmiSSL 4.5
Cross-Pla… Read More
2020-04-27 10:13
If you've been following my work then I'm sure you're wondering what's happening with ZitaFTP Server. It's been a while since the last release. Well, I took some time out round Easter to thi… Read More
2020-04-20 06:23
We're all living through the COVID-19 pandemic and the resulting lockdowns. The massive disruption to life, work and business is affecting us all, and a new normal is going to emerge once th… Read More
2020-04-14 02:38
I hope that you are all well, and wish you a Happy Easter. May it be filled with joy and blessings despite the CODI-19 virus and resulting lockdowns.This has truly been the weirdest Easter e… Read More
2020-04-06 07:46
When ZitaFTP Server was first released for the Amiga computer, its usefulness was limited by the lack of a secure FTP client for the Amiga. However, that's now changed with the release of RN… Read More
2020-02-12 01:57
I've released another small update to ZitaFTP Server, which can be downloaded now. This version adds one new feature: you can set the permissions given to file uploads (and created directori… Read More
2020-01-29 09:21
ZitaFTP Server version 1.11 is now available for download. This is mostly a bug-fix version with the following changes:Added workaround for impatient clients that trigger an ECONNRESET on fi… Read More
2019-12-30 03:54
I'm pleased to announce that ZitaFTP Server has the first part of the planned GUI. It was supposed to be released before Christmas, but my first child decided to arrive early, and all schedu… Read More
2019-10-07 02:58
Last week was pretty tough. It started well, but then I got one of those nasty "stomach flus" which lasted most of the week. And, I learnt that I need to grow an even thicker skin if I am to… Read More
2019-09-20 06:26
Two quick items that need your attention:ZitaFTP Server Bug-Fix UpdateZitaFTP Server has been updated to version 1.8. This version has multiple bug fixes and workarounds. The most serious is… Read More
2019-09-17 09:24
I created ZitaFTP Server in part because I wanted secure file transfer on AmigaOS (something that wasn't available previously). Some seem to think that plain FTP is good enough, so today I'm… Read More
2019-09-05 05:44
I'm really pleased to announce that ZitaFTP Server for AmigaOS 4 is finally done. Yes, it's a available for you to download, try, and buy.when you go to buy, you will see four options. You c… Read More
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