https://raymii.org/s/tags/gpl.xml RSS feed for tag gpl on Raymii.org https://raymii.org/s/blog/Leaf_Node_Monitoring_v2025.01_released.html?utm_medium=rss&utm_source=raymii&utm_campaign=tagrss https://raymii.org/s/blog/Leaf_Node_Monitoring_v2025.01_released.html I'm pleased to announce the next version of Leaf Node Monitoring, the simple and easy to use open source site and server monitoring tool. This update adds two features users have requested, plus a couple of small but useful fixes. This post goes over everything that is new in this release. Sat, 19 Apr 2025 19:04:00 GMT Sat, 19 Apr 2025 19:04:00 GMT https://raymii.org/s/blog/My_First_PCB_relay_AND_gate.html?utm_medium=rss&utm_source=raymii&utm_campaign=tagrss https://raymii.org/s/blog/My_First_PCB_relay_AND_gate.html This is the result of my first attempt at learning KiCad during the Christmas break. I love the sound of a relay, so trying out [these relay logic gates](https://www.youtube.com/watch?v=_nXc439NTYk) from the Usagi video and the information [here on the MERCIA relay computer](https://web.archive.org/web/20250104211313/https://relaiscomputer.nl/index.php/elements) on a breadboard was fun, but a bit messy. No transistors or modern components, just relays, push buttons, resistors and LED's to show output. I've always wanted to make my own PCB. These simple relay logic gates are perfect to try out KiCad and actual PCB design, having never done that before. This short post shows you my first PCB, with all the beginner mistakes included. Mon, 20 Jan 2025 03:59:00 GMT Mon, 20 Jan 2025 03:59:00 GMT https://raymii.org/s/blog/Leaf_Node_Monitoring_v2024.02_released.html?utm_medium=rss&utm_source=raymii&utm_campaign=tagrss https://raymii.org/s/blog/Leaf_Node_Monitoring_v2024.02_released.html I'm pleased to announce the next version of Leaf Node Monitoring, the simple and easy to use open source site and server monitoring tool. Major new features include minimizing to the tray, automatic startup on Windows and Linux and a new check, SSL Certificate Expiry. This post goes over everything that is new in this release. Fri, 12 Jul 2024 22:30:00 GMT Fri, 12 Jul 2024 22:30:00 GMT https://raymii.org/s/blog/Leaf_Node_Monitoring_v2024.01_released.html?utm_medium=rss&utm_source=raymii&utm_campaign=tagrss https://raymii.org/s/blog/Leaf_Node_Monitoring_v2024.01_released.html I'm pleased to announce the next version of Leaf Node Monitoring, the simple and easy to use open source site and server monitoring tool. Major new features include better alerting and history of events. This post goes over everything that is new in this release. Sat, 15 Jun 2024 22:30:00 GMT Sat, 15 Jun 2024 22:30:00 GMT https://raymii.org/s/software/Fixing_the_buzz_hiss_on_my_atgames_legends_pinball_micro.html?utm_medium=rss&utm_source=raymii&utm_campaign=tagrss https://raymii.org/s/software/Fixing_the_buzz_hiss_on_my_atgames_legends_pinball_micro.html The [Atgames Legends Pinball Micro](https://web.archive.org/web/20240123213954/https://www.atgames.us/products/legends-pinball-micro) is a small virtual pinball cabinet for around USD 350. I imported one to the Netherlands, Atgames does not ship here. The built in tables are okay and more are for sale via Atgames' webshop. Overall for the price it is a nice device. Build quality is okay, software lacks a bit of quality. One really annoying issue which severely impacts gameplay is a buzz / hiss sound. This post goes over my attempts to fix this hiss and the one that worked was a ground loop isolator. Tue, 23 Jan 2024 22:00:00 GMT Tue, 23 Jan 2024 22:00:00 GMT https://raymii.org/s/blog/Leaf_Node_Monitoring_v2023.01_released.html?utm_medium=rss&utm_source=raymii&utm_campaign=tagrss https://raymii.org/s/blog/Leaf_Node_Monitoring_v2023.01_released.html I'm pleased to announce the next version of Leaf Node Monitoring, the simple and easy to use open source site and server monitoring tool. Major new features include a responsive and adjustable layout, massive performance improvements and a new check type, allowing you to execute external processes, for example, the nagios/monitoring plugins. This post goes over everything that is new in this release. Thu, 05 Jan 2023 00:00:00 GMT Thu, 05 Jan 2023 00:00:00 GMT https://raymii.org/s/blog/Responsive_Qt_QML_Layout_coming_to_Leaf_Node_Monitoring.html?utm_medium=rss&utm_source=raymii&utm_campaign=tagrss https://raymii.org/s/blog/Responsive_Qt_QML_Layout_coming_to_Leaf_Node_Monitoring.html [Leaf Node Monitoring](https://leafnode.nl) is my own open source (GPLv3), paid, network monitoring program for Windows, Linux & Android. Written in C++ & Qt 5. Perfect to run on your desktop and monitor your servers. Simple setup, auto-detects running services, runs checks concurrently and alerting. This post shows another upcoming feature in the next version, responsive layouting to more effectively use screen real estate. Mon, 15 Aug 2022 21:00:00 GMT Mon, 15 Aug 2022 21:00:00 GMT https://raymii.org/s/blog/Whats_coming_in_leaf_node_monitoring_v2022_02.html?utm_medium=rss&utm_source=raymii&utm_campaign=tagrss https://raymii.org/s/blog/Whats_coming_in_leaf_node_monitoring_v2022_02.html Leaf Node Monitoring is my own open source (GPLv3), paid, network monitoring program for Windows, Linux & Android. Written in C++ & Qt 5. Perfect to run on your desktop and monitor your servers. Simple setup, auto-detects running services, runs checks concurrently, open port scanning and alerting. I've recently released the first version, and this post goes over the features that will come in the next release. Thu, 14 Jul 2022 00:00:00 GMT Thu, 14 Jul 2022 00:00:00 GMT https://raymii.org/s/blog/Existing_GPL_software_for_sale.html?utm_medium=rss&utm_source=raymii&utm_campaign=tagrss https://raymii.org/s/blog/Existing_GPL_software_for_sale.html In my earlier posts I described the hurdles I faced with my plan to [sell my own](/s/blog/Selling_GPL_Software_part_1_lots_of_hurdles.html) GPL software and I described how to [embed the source code directly inside the app] (/s/articles/Embed_the_source_code_directly_in_your_Qt_app.html) (for mobile platforms). This post looks at a few other projects that sell GPL software and it's a bit of a progress update regarding my plans and software. Sun, 24 Apr 2022 00:00:00 GMT Sun, 24 Apr 2022 00:00:00 GMT https://raymii.org/s/blog/Qt_5.15.3_OpenSource_released.html?utm_medium=rss&utm_source=raymii&utm_campaign=tagrss https://raymii.org/s/blog/Qt_5.15.3_OpenSource_released.html Qt is a nice C++ framework with a GUI toolkit on top, actually, 2 toolkit, Widgets and Qml. Qt is available under the GPL and LPGL, open source licenses and a closed source license. [Back in 2020](https://lwn.net/Articles/817129/), the Qt company decided to [start a war](https://ev.kde.org/2020/04/06/changes-in-qt-and-the-kde-free-qt-foundation/) against their own users and contributors by withholding the 5.15 code, only releasing them under a closed license, making the offline installers available to paid customers and requiring a Qt account for the online installer. Due to [an agreement](https://www.qt.io/faq/3.2.-why-do-you-have-an-agreement-with-kde-about-your-licensing-what-kde-is-and-whats-the-history-of-qt-and-kde) with the [KDE project](https://kde.org/community/whatiskde/kdefreeqtfoundation/) they are obliged to release the code after one year under an open source license, and that time has come for 5.15.3. For most LTS releases, the Qt company writes a blog post, but this open source release only gets a [mailing list post](https://lists.qt-project.org/pipermail/development/2022-March/042262.html) (One day and 4 blog posts later, [no mention of 5.15.3 on their blog](https://archive.ph/IvMSn)). This short post is intended to give a bit more publicity to that release and to tell you about the KDE Qt 5.15 LTS patch collection. Even if I might not agree with the business practices, the framework is nice to work with. Fri, 04 Mar 2022 00:00:00 GMT Fri, 04 Mar 2022 00:00:00 GMT https://raymii.org/s/blog/I_enforced_the_AGPL_on_my_code_heres_how_it_went.html?utm_medium=rss&utm_source=raymii&utm_campaign=tagrss https://raymii.org/s/blog/I_enforced_the_AGPL_on_my_code_heres_how_it_went.html Five years ago I made a website that allowed you to put in a few domains and get an email when the SSL certificate was about to expire. No ads, no fuss, just an easy way for people to keep tabs on their sites without setting up their own monitoring like Nagios. As with all of my software, I released it under the AGPL due to it being web based software. Recently I found a company that hosted certificatemonitor, with some modifications (branding and a dutch tanslation), without any reference to its origin, no source code provided and no mention of the license. In this article I'll talk about what I did to enforce the license and how it went. TL;DR, not as expected. The company responded timely and friendly, but did a half assed attempt (added a link to my site with 'Inspired By Remy' as the text), then after my complaints, took down the entire site. Tue, 20 Oct 2020 00:00:00 GMT Mon, 28 Feb 2022 00:00:00 GMT https://raymii.org/s/articles/Embed_the_source_code_directly_in_your_Qt_app.html?utm_medium=rss&utm_source=raymii&utm_campaign=tagrss https://raymii.org/s/articles/Embed_the_source_code_directly_in_your_Qt_app.html In my earlier [post on selling GPL software](/s/blog/Selling_GPL_Software_part_1_lots_of_hurdles.html) I outlined a few points that make it hard to sell GPL software. One of them is the availability of the source code. You could put it online but then everyone has access without paying. Other options like putting it behind a login or sending a link after purchase require extra systems and saving more user information, lots of extra hassle for me and the users. One of my ideas for 'solving' this issue is by shipping the actual source code directly inside the application. This article shows you how to do that, by creating an archive of the current source code on every build with `qmake` and embedding that inside the application using `qrc`, including a button to save the archive locally to disk. It works on the desktop as well as Android, including the required permissions. Sat, 12 Feb 2022 00:00:00 GMT Sat, 12 Feb 2022 00:00:00 GMT