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Plasma on Mobile Devices
Plasma on Mobile devices Application Ecosystem MC Bhushan Shah KDE Developer Agenda ● Initial development of the Plasma Mobile ● Basic architecture details ● Advantages to KDE community ● Application ecosystem and development ● Future for Plasma Mobile ● Challenges Introduction ● KDE developer and sysadmin ● Plasma Mobile maintainer and lead developer ● Employed by Bluesystems GmbH ● From Vadodara, India KDE ● Previously known as the K Desktop Environment ● Now community, which creates free software for end users ● Several products including Plasma, KDE Frameworks, KDE applications. Plasma Mobile ● Announced in the July 2015 ● Vision of providing completely free and open-source mobile platform which respects user’s privacy and freedom. ● Initial prototype on the LG Nexus 5. Initial Development ● LGE Nexus 5 as reference device ● Ubuntu Touch 15.04 (vivid) as base system ● Makes use of the Android binary blobs / drivers ● Can also run on the desktop system for development Basic architecture details ● KWin wayland as compositor ● DRM/GBM or hwcomposer backends ● plasmashell and mobile shell package ● QtQuickControls2 and Kirigami for application development Advantages to KDE community ● Several performance improvements ● Better touch input support in applications and shell ● Improvements in Wayland support ● More modular and re-usable user interfaces Application ecosystem and development ● QtQuickControls2 and Kirigami as toolkit ● CMake/QMake as a buildsystem ● Various bundle formats as well as native distribution packaging for the distribution -
I Am Not Clueless Myths and Misconceptions About the Design Of
I am not clueless or Myths and misconceptions about the design of GoboLinux Hisham H. Muhammad April 11, 2017 “Those who do not understand Unix are doomed to reinvent it, poorly.” – Henry Spencer, 1987 This week we had another release of GoboLinux, and again a number of people, even if indirectly, called me “clueless” for coming up with such a structure for a Linux distribution, for a number of reasons. None of those reasons was new; I heard all of them many times. This article is an attempt to sum them up, and explain why I chose the design decisions I made, hopefully clearing any pending misconceptions. I don’t have illusion this will prevent them keep happening, but at least I’ll have a text to point people to. This article ranges from common misconceptions from those who have never used GoboLinux, to well-intentioned but poorly-thought-out ideas that keep coming from time to time to the GoboLinux mailing list, often causing long debates. I’ll be separating the points in sections and they are meant to be self-contained, so feel free to skip directly to the ones that interest you, if you don’t feel like reading the whole thing. “There is a reason why things are the way they are” This is something I hear constantly, often followed by an explanation about the difference between /, /usr and /usr/local, and/or /bin and /sbin. I do understand the difference1. If I did away with this three-level distinction, is because I believe there are other ways to approach the problems this distinction tries to solve. -
Chapter 12 Calc Macros Automating Repetitive Tasks Copyright
Calc Guide Chapter 12 Calc Macros Automating repetitive tasks Copyright This document is Copyright © 2019 by the LibreOffice Documentation Team. Contributors are listed below. You may distribute it and/or modify it under the terms of either the GNU General Public License (http://www.gnu.org/licenses/gpl.html), version 3 or later, or the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), version 4.0 or later. All trademarks within this guide belong to their legitimate owners. Contributors This book is adapted and updated from the LibreOffice 4.1 Calc Guide. To this edition Steve Fanning Jean Hollis Weber To previous editions Andrew Pitonyak Barbara Duprey Jean Hollis Weber Simon Brydon Feedback Please direct any comments or suggestions about this document to the Documentation Team’s mailing list: [email protected]. Note Everything you send to a mailing list, including your email address and any other personal information that is written in the message, is publicly archived and cannot be deleted. Publication date and software version Published December 2019. Based on LibreOffice 6.2. Using LibreOffice on macOS Some keystrokes and menu items are different on macOS from those used in Windows and Linux. The table below gives some common substitutions for the instructions in this chapter. For a more detailed list, see the application Help. Windows or Linux macOS equivalent Effect Tools > Options menu LibreOffice > Preferences Access setup options Right-click Control + click or right-click -
What Are the Problems with Embedded Linux?
What Are the Problems with Embedded Linux? Every Operating System Has Benefits and Drawbacks Linux is ubiquitous. It runs most internet servers, is inside Android* smartphones, and is used on millions of embedded systems that, in the past, ran Real-Time Operating Systems (RTOSes). Linux can (and should) be used were possible for embedded projects, but while it gives you extreme choice, it also presents the risk of extreme complexity. What, then, are the trade-offs between embedded Linux and an RTOS? In this article, we cover some key considerations when evaluating Linux for a new development: ■ Design your system architecture first ■ What is Linux? ■ Linux vs. RTOSes ■ Free software is about liberty—not price ■ How much does Embedded Linux cost? ■ Why pay for Embedded Linux? ■ Should you buy Embedded Linux or roll-your-own (RYO)? ■ To fork or not to fork? ■ Software patching ■ Open source licensing ■ Making an informed decision The important thing is not whether Linux or an RTOS is “the best,” but whether either operating system—or both together—makes the most technical and financial sense for your project. We hope this article helps you make an informed decision. Design Your System Architecture First It is important to design your system architecture first—before choosing either Linux or an RTOS—because both choices can limit architectural freedom. You may discover that aspects of your design require neither Linux nor an RTOS, making your design a strong candidate for a heterogeneous approach that includes one or more bare-metal environments (with possibly a Linux and/or RTOS environment as well). -
AMNESIA 33: How TCP/IP Stacks Breed Critical Vulnerabilities in Iot
AMNESIA:33 | RESEARCH REPORT How TCP/IP Stacks Breed Critical Vulnerabilities in IoT, OT and IT Devices Published by Forescout Research Labs Written by Daniel dos Santos, Stanislav Dashevskyi, Jos Wetzels and Amine Amri RESEARCH REPORT | AMNESIA:33 Contents 1. Executive summary 4 2. About Project Memoria 5 3. AMNESIA:33 – a security analysis of open source TCP/IP stacks 7 3.1. Why focus on open source TCP/IP stacks? 7 3.2. Which open source stacks, exactly? 7 3.3. 33 new findings 9 4. A comparison with similar studies 14 4.1. Which components are typically flawed? 16 4.2. What are the most common vulnerability types? 17 4.3. Common anti-patterns 22 4.4. What about exploitability? 29 4.5. What is the actual danger? 32 5. Estimating the reach of AMNESIA:33 34 5.1. Where you can see AMNESIA:33 – the modern supply chain 34 5.2. The challenge – identifying and patching affected devices 36 5.3. Facing the challenge – estimating numbers 37 5.3.1. How many vendors 39 5.3.2. What device types 39 5.3.3. How many device units 40 6. An attack scenario 41 6.1. Other possible attack scenarios 44 7. Effective IoT risk mitigation 45 8. Conclusion 46 FORESCOUT RESEARCH LABS RESEARCH REPORT | AMNESIA:33 A note on vulnerability disclosure We would like to thank the CERT Coordination Center, the ICS-CERT, the German Federal Office for Information Security (BSI) and the JPCERT Coordination Center for their help in coordinating the disclosure of the AMNESIA:33 vulnerabilities. -
Minetest Forums
Minetest Forums The official Minetest discussion board Skip to content Search… Search Advanced search Board index ‹ User-contributed Content ‹ Subgames ‹ Subgame Releases Print view FAQMembersRegisterLogin [Game] Dreambuilder [20160114-2006] Post a reply Search this topic… Search 544 posts • Page 1 of 22 • 1, 2, 3, 4, 5 ... 22 Reply with quote [Game] Dreambuilder [20160114-2006] VanessaE Moderator by VanessaE » Mon Apr 28, 2014 01:37 Posts: 3642 "If you can imagine it, you can build it." Joined: Sun Apr 01, 2012 12:38 Location: Waynesville, Dreambuilder is my attempt to give the player pretty much everything they'll ever want to build with, and all the tools NC they should ever need to actually get the job done. This game was originally based on minetest_game, minus a couple GitHub: VanessaE of mods that I don't like, with a number of minor things changed, and a number of extra mods added on. Since then, IRC: VanessaE many things have changed - while much of the base game is still the same, some stuff is different, and many more mods In-game: have been added. Many of the mods contained in this game have been tweaked from their deault states. Mods are VanessaEzekowitz generally kept up-to-date, and from time to time, if an interesting feature pops up in minetest_game, I may port that over also. Website This game is in use on my Creative server and my Survival server. Both servers have a few extra mods installed for their specific needs, but should give you a pretty good idea nonetheless. -
KDE Free Qt Foundation Strengthens Qt
How the KDE Free Qt Foundation strengthens Qt by Olaf Schmidt-Wischhöfer (board member of the foundation)1, December 2019 Executive summary The development framework Qt is available both as Open Source and under paid license terms. Two decades ago, when Qt 2.0 was first released as Open Source, this was excep- tional. Today, most popular developing frameworks are Free/Open Source Software2. Without the dual licensing approach, Qt would not exist today as a popular high-quality framework. There is another aspect of Qt licensing which is still very exceptional today, and which is not as well-known as it ought to be. The Open Source availability of Qt is legally protected through the by-laws and contracts of a foundation. 1 I thank Eike Hein, board member of KDE e.V., for contributing. 2 I use the terms “Open Source” and “Free Software” interchangeably here. Both have a long history, and the exact differences between them do not matter for the purposes of this text. How the KDE Free Qt Foundation strengthens Qt 2 / 19 The KDE Free Qt Foundation was created in 1998 and guarantees the continued availabil- ity of Qt as Free/Open Source Software3. When it was set up, Qt was developed by Troll- tech, its original company. The foundation supported Qt through the transitions first to Nokia and then to Digia and to The Qt Company. In case The Qt Company would ever attempt to close down Open Source Qt, the founda- tion is entitled to publish Qt under the BSD license. This notable legal guarantee strengthens Qt. -
Github: a Case Study of Linux/BSD Perceptions from Microsoft's
1 FLOSS != GitHub: A Case Study of Linux/BSD Perceptions from Microsoft’s Acquisition of GitHub Raula Gaikovina Kula∗, Hideki Hata∗, Kenichi Matsumoto∗ ∗Nara Institute of Science and Technology, Japan {raula-k, hata, matumoto}@is.naist.jp Abstract—In 2018, the software industry giants Microsoft made has had its share of disagreements with Microsoft [6], [7], a move into the Open Source world by completing the acquisition [8], [9], the only reported negative opinion of free software of mega Open Source platform, GitHub. This acquisition was not community has different attitudes towards GitHub is the idea without controversy, as it is well-known that the free software communities includes not only the ability to use software freely, of ‘forking’ so far, as it it is considered as a danger to FLOSS but also the libre nature in Open Source Software. In this study, development [10]. our aim is to explore these perceptions in FLOSS developers. We In this paper, we report on how external events such as conducted a survey that covered traditional FLOSS source Linux, acquisition of the open source platform by a closed source and BSD communities and received 246 developer responses. organization triggers a FLOSS developers such the Linux/ The results of the survey confirm that the free community did trigger some communities to move away from GitHub and raised BSD Free Software communities. discussions into free and open software on the GitHub platform. The study reminds us that although GitHub is influential and II. TARGET SUBJECTS AND SURVEY DESIGN trendy, it does not representative all FLOSS communities. -
An User & Developer Perspective on Immutable Oses
An User & Developer Perspective on Dario Faggioli Virtualization SW. Eng. @ SUSE Immutable OSes [email protected] dariof @DarioFaggioli https://dariofaggioli.wordpress.com/ https://about.me/dario.faggioli About Me What I do ● Virtualization Specialist Sw. Eng. @ SUSE since 2018, working on Xen, KVM, QEMU, mostly about performance related stuff ● Daily activities ⇒ how and what for I use my workstation ○ Read and send emails (Evolution, git-send-email, stg mail, ...) ○ Write, build & test code (Xen, KVM, Libvirt, QEMU) ○ Work with the Open Build Service (OBS) ○ Browse Web ○ Test OSes in VMs ○ Meetings / Video calls / Online conferences ○ Chat, work and personal ○ Some 3D Printing ○ Occasionally play games ○ Occasional video-editing ○ Maybe scan / print some document 2 ● Can all of the above be done with an immutable OS ? Immutable OS: What ? Either: ● An OS that you cannot modify Or, at least: ● An OS that you will have an hard time modifying What do you mean “modify” ? ● E.g., installing packages ● ⇒ An OS on which you cannot install packages ● ⇒ An OS on which you will have an hard time installing packages 3 Immutable OS: What ? Seriously? 4 Immutable OS: Why ? Because it will stay clean and hard to break ● Does this sound familiar? ○ Let’s install foo, and it’s dependency, libfoobar_1 ○ Let’s install bar (depends from libfoobar_1, we have it already) ○ Actually, let’s add an external repo. It has libfoobar_2 that makes foo work better! ○ Oh no... libfoobar_2 would break bar!! ● Yeah. It happens. Even in the best families distros -
Freebsd Opengroupware - English
FreeBSD OpenGroupware - English FreeBSD As Basis For OpenGroupware.org PostgreSQL As Database FreeBSD can currently look back on a history of over 30 PostgreSQL, like BSD, originated at the University of Ca- years. It originated at the University of Berkeley and lifornia and is also distributed under the BSD license. It's FreeBSD evolved over a few intermediate steps into the project one of the oldest and most advanced object-relational founded in 1993 called FreeBSD. The supported architec- database management systems (ORDBMS) in the realm tures are the following: i386, amd64, Alpha, Itanium, of free software and looks back on a development of OpenGroupware.org SPARC, PPC (Mac) and others. over 15 years. PostgreSQL is largely conforming to the FreeBSD has very good support for multiprocessor sys- SQL92/SQL99 standards, that means that all functions in The ideal solution for professional the standards are available and behave as defined; that tems (SMP) and is distributed under the BSD license team communication on the Internet, which grants the user nearly every freedom and is free is not always the case with some commercial and non- commercial SQL database systems. of cost. Apart from having to name the origins of the with FreeBSD and PostgreSQL code, the user may use it in any which way he or she pleases. FreeBSD is a gift to humanity, we are pleased when you use it! FreeBSD has not only got many features, it also has a What is a groupware solution? huge amount of free and open software in its so-called Ports Collection. -
SUSE® Linux Enterprise Desktop 12 and the Workstation Extension: What's New ?
SUSE® Linux Enterprise Desktop 12 and the Workstation Extension: What's New ? Frédéric Crozat <[email protected]> Enterprise Desktop Release Manager Scott Reeves <[email protected]> Enterprise Desktop Development Manager Agenda • Design Criteria • Desktop Environment in SUSE Linux Enterprise 12 • GNOME Shell • Desktop Features and Applications 2 Design Criteria SUSE Linux Enterprise Desktop Interoperability Ease of Use Security Ease of Management Lower Costs 4 SUSE Linux Enterprise Desktop 12 • Focus on technical workstation ‒ Developers and System administrators • One tool for the job • Main desktop applications will be shipped: ‒ Mail client, Office Suite, Graphical Editors, ... • SUSE Linux Enterprise Workstation Extension ‒ Extend SUSE Linux Enterprise Server with packages only available on SUSE Linux Enterprise Desktop. (x86-64 only) 5 Desktop in SUSE Linux Enterprise 12 As Part of the Common Code Base SUSE Linux Enterprise 12 Desktop Environment • SUSE Linux Enterprise 12 contains one primary desktop environment • Additional light-weight environment for special use-cases: ‒ Integrated Systems • Desktop environment is shared between the server and desktop products 7 SUSE Linux Enterprise 12 Desktop Environment • GNOME 3 is the main desktop environment ‒ SLE Classic mode by default ‒ GNOME 3 Classic Mode and GNOME 3 Shell Mode also available • SUSE Linux Enterprise 12 ships also lightweight IceWM ‒ Targeted at Integrated Systems • QT fully supported: ‒ QT5 supported for entire SLE12 lifecycle ‒ QT4 supported, will be removed in future -
Reactos-Devtutorial.Pdf
Developer Tutorials Developer Tutorials Next Developer Tutorials Table of Contents I. Newbie Developer 1. Introduction to ReactOS development 2. Where to get the latest ReactOS source, compilation tools and how to compile the source 3. Testing your compiled ReactOS code 4. Where to go from here (newbie developer) II. Centralized Source Code Repository 5. Introducing CVS 6. Downloading and configuring your CVS client 7. Checking out a new tree 8. Updating your tree with the latest code 9. Applying for write access 10. Submitting your code with CVS 11. Submitting a patch to the project III. Advanced Developer 12. CD Packaging Guide 13. ReactOS Architecture Whitepaper 14. ReactOS WINE Developer Guide IV. Bochs testing 15. Introducing Bochs 16. Downloading and Using Bochs with ReactOS 17. The compile, test and debug cycle under Bochs V. VMware Testing 18. Introducing VMware List of Tables 7.1. Modules http://reactos.com/rosdocs/tutorials/bk02.html (1 of 2) [3/18/2003 12:16:53 PM] Developer Tutorials Prev Up Next Chapter 8. Where to go from here Home Part I. Newbie Developer (newbie user) http://reactos.com/rosdocs/tutorials/bk02.html (2 of 2) [3/18/2003 12:16:53 PM] Part I. Newbie Developer Part I. Newbie Developer Prev Developer Tutorials Next Newbie Developer Table of Contents 1. Introduction to ReactOS development 2. Where to get the latest ReactOS source, compilation tools and how to compile the source 3. Testing your compiled ReactOS code 4. Where to go from here (newbie developer) Prev Up Next Developer Tutorials Home Chapter 1. Introduction to ReactOS development http://reactos.com/rosdocs/tutorials/bk02pt01.html [3/18/2003 12:16:54 PM] Chapter 1.