Block editing: SiYuan, the only important core concept is Content block. The content block
      can be formed through the formatting format, so that we can organize our thoughts and
      knowledge at the block-level granularity, and it is also convenient for reading and outputting
      long content.
      Privacy security Encrypted cloud, worry-free privacy: Data is stored entirely on the device
      under the control of the user. Even if there is no network, even if the cloud service is down,
      it can still be used locally without restrictions. No offline, no notes.
      Bidirectional link: Documentation page are also blocks, reducing mental load. All content
      exists on a block basis, and documentation pages are no exception. Blocks can be converted to
      each other, splitting, reorganizing and moving do not affect existing links.
      List outline: Sort out the main points, logically layered
      Multi-device data sync: Keep data complete and consistent
    

SiYuan

A privacy-first personal knowledge management system, support fine-grained block-level reference and Markdown WYSIWYG

Create. Send. Get Paid.
      Invoice Ninja is a leading platform for SMB’s to invoice, accept payments, track expenses &amp; time billable-tasks. Designed for freelancers and small to medium size businesses, Invoice Ninja is a suite of apps to help you get paid.
      
      • Incredibly easy to use: 
      Invoice Ninja was built to serve freelancers and business owners with a complete suite of invoicing &amp; payment tools to advance your business.
    
      
      • Invoicing &amp; Payments: 
      Every feature is geared towards accurate and secure invoicing and getting you paid. With Invoice Ninja you can send beautiful branded invoices with minimum of effort and maximum professionalism.
    
      
      • Time Tracker &amp; Projects: 
      Create projects and individual tasks per project. When done, simply “Send task to invoice” and all details will be sent ready for your clients to pay!
    
      
      • Track Vendors &amp; Expenses: 
      With Invoice Ninja, all your earnings, expenses, clients and vendors are stored and managed in one system. Categorize your vendors &amp; re-invoice expenses to clients, or simply run expense reports.
    
      
      All of these features combine to help you receive the money you deserve and reduce the amount of time you spend on repetitive invoicing tasks. Spend less time on paperwork and more time at your craft.
    
    

Invoice Ninja

Create invoices, accept payments, track expenses & time tasks


      crqt-ng is fast and small cross-platform XML/CSS based eBook reader. Written using the Qt framework.
    
      
      Supported formats: fb2, fb3 (incomplete), epub (non-DRM), doc, docx, odt, rtf, pdb, mobi (non-DRM), txt, html, Markdown, chm, tcr.
    
      Main functions:
      
        Ability to display 2 pages at the same time
        Displaying and Navigating Book Contents
        Text search
        Word hyphenation using hyphenation dictionaries
        Most complete support for FB2 - styles, tables, footnotes at the bottom of the page
        Extensive font rendering capabilities: use of ligatures, kerning, hinting option selection, floating punctuation, simultaneous use of several fonts, including fallback fonts
        Detection of the main font incompatible with the language of the book
        Reading books directly from a ZIP archive
        TXT auto reformat, automatic encoding recognition
        Flexible styling with CSS files
        Background pictures, textures, or solid background
        HiDPI support
        Multi-tabbed interface
      
    

crqt-ng

Advertisement: This package contains only TexLive, a spell checker (Hunspell) and a version control. Via addons you can add support for LilyPond, Sweave and Knitr. After installation you must reconfigure, Tools-&gt;ReconfigureLyX combines the power and flexibility of TeX/LaTeX with the ease of use of a graphical interface. This results in world-class support for creation of mathematical content (via a fully integrated equation editor) and structured documents like academic articles, theses, and books. In addition, staples of scientific authoring such as reference list and index creation come standard. But you can also use LyX to create a letter or a novel or a theatre play or film script. A broad array of ready, well-designed document layouts are built in.LyX is for people who want their writing to look great, right out of the box. No more endless tinkering with formatting details, “finger painting” font attributes or futzing around with page boundaries. You just write. On screen, LyX looks like any word processor; its printed output — or richly cross-referenced PDF, just as readily produced — looks like nothing else.

See the lyrics of the song that is playing, from any application. Sing along with the option to sync lyrics.

Give Me Lyrics


      Burgernotes is a simple, private-by-default and easy to use notes app. All your notes seamlessly sync across your devices, and are 100% end-to-end encrypted, so no one but you can access them.
    
    

Burgernotes

Take notes with beautiful typography.
      Warning: Lemma is currently in alpha stage, data loss is likely at this point. Please be careful and make regular backups.
    

Lemma


    Bookup is a user-friendly note-taking application that streamlines the process
    with the use of markdown syntax. Whether you're a student, professional,
    or simply someone who loves to jot down ideas,
    Bookup offers a seamless and efficient way to capture and organize your notes.
    
      
    Bookup draws inspiration from the highly acclaimed Notes-up application.
    We have taken the best aspects of Notes-up and enhanced them to create
    an even more user-friendly note-taking experience.
    
      
    Bookup is built in C for optimal speed and efficiency, offering quick
    performance and a low memory footprint.
    
    

Bookup

Buckets is a private, personal and family budgeting app. All your data stays on your computer.Buckets comes with an untimed, free trial for as long as you need to decide if it works for you. When you decide to purchase, a one-time payment buys a license for the current major version. The license may be used on any number of devices belonging to your immediate family members living in your home.

Buckets

Quick, simple and private family budgeting app

GoForIt! is a simple and stylish productivity app, featuring a to-do list, merged with a timer that keeps your focus on the current task.To-do lists are stored in the Todo.txt format. This simplifies synchronization with mobile devices and makes it possible to edit tasks using other front-ends.

GoForIt!

A stylish to-do list with built-in productivity timer


      Kile is a user-friendly TeX/LaTeX editor by KDE. Kile gives you the ability to use all the functionality of LaTeX in a graphical interface and has interactive preview mechanisms to readily see the results of editing.
    
      Features:
      
        Compile, convert and view your document with one click
        Auto-completion of (La)TeX commands
        Templates and wizards make starting new documents very little work
        Easy insertion of many standard tags and symbols and the option to define (an arbitrary number of) user defined tags
        Inverse and forward search: click in the DVI viewer and jump to the corresponding LaTeX line in the editor, or jump from the editor
          to the corresponding page in the viewer
        Finding chapter or sections is very easy, Kile constructs a list of all the chapter etc. in your document. You can use the list to
          jump to the corresponding section
        Collect documents that belong together into a project
        Easy insertion of citations and references when using projects
        Flexible and smart build system to compile your LaTeX documents
        QuickPreview: preview a selected part of your document
        Easy access to various help sources
        Advanced editing commands
      
    

Kile

Osmo is a handy personal organizer which includes calendar, tasks manager and
address book modules. It was designed to be a small, easy to use and good
looking PIM tool to help to manage personal information. In current state the
organizer is quite convenient in use - for example, user can perform nearly
all operations using keyboard. Also, a lot of parameters are configurable to
meet user preferences.
    

Osmo

Longbridge Pro is  a professional trading platform tailored to your needs, with over 100 technical indicators and 12 multi-dimensional marking tools from Trading View, can elevate your strategy to a new level of value. 
    

Longbridge Pro


      Unite your recipes in one central place and access them from all the places you might need them such as your PC, your Andoid devices, or any browser.
      Keep your recipe collection nicely organized by choosing your own categories.
      Add an arbitrary amount of photos to showcase your creations.
      All the functionality is for free; only the automatic synchronization costs a small fee.
    
    

Cookbook

Synology Note Station is a powerful note-taking application designed for personal and professional use. Organize your thoughts, ideas, and tasks efficiently with Note Station's intuitive interface and collaborative features.
      NOTE: This wrapper is not verified by, affiliated with, or supported by Synology Inc.
    

Synology Note Station

Powerful note-taking application for personal and professional use

Focus on your writing and write beautiful solid stories with the Focus Mode in tow in this Markdown editorWork on a story, one file displayed at a time, many files sidebar'd.Save your documents anywhere, even on existing files.Preview your story in the Preview Mode.Configure whether to have Focus Mode or not.Configure whether to have Dark Mode or not.Configure whether to have Sepia Mode or not.Fullscreen your writing area with F11.Search anytime with the shortcut Ctrl + FQuit anytime with the shortcut Ctrl + Q

Quilter


            Wasabi is an open-source, non-custodial, privacy-focused Bitcoin wallet. It is a piece of software that runs on your computer and helps you to manage your bitcoins. Although Wasabi has some very advanced magic under the hood, it is rather easy to use. You can generate a new set of private keys, or import already existing ones. With Wasabi you can receive bitcoins into your full control, and you can send them to someone else without needing permission from any other person or entity. There is also a powerful CoinJoin feature to help obfuscate your transaction history. You can use Wasabi to manage your hardware wallet, and it even connects to your own full node. Of course, Wasabi is libre and open-source, which means you have full control over the software you manage your money with.
        
    

Wasabi Wallet

Open-source, non-custodial, privacy-focused Bitcoin wallet for Desktop, that implements trustless CoinJoin.

Android Virtual Pen allows to send pen input data from your android device to a pc host where it emulates a virtual pen. What distinguishes this solution from others, is emphasis on low-latency to provide the best drawing experience.
      The Android app itself can be found on the github repo at github.com/androidvirtualpen/virtualpen/releases/download/0.1/virtual-pen.apk and soon on the Google Play Store if you wish to support further development.
      Features
      
        Adjustable pen pressure threshold such that you can move the pen-cursor without triggering an unintended click/draw action
        Adjustable pen pressure sensitivity such that you can customize the force needed to be applied
        Eraser support
        Switch between stretched and fixed display mode. In stretched mode, the android device screen is stretched and completely mapped to your PC primary screen. Note that this is required to fully reach the boundaries of your PC screen from your device but causes some slight distortion if the screen ratios (android vs PC) are not the same.
In fixed mode, if the android device screen resolution fits into your PC screen, the android device display is centered and mapped on the host at a 1:1 ratio. This mode should incurr no distortion.
        Detects available usb devices and automatically save your settings for each
        Supports both X11 and Wayland
      
      Usage
      Start the android application connected to your PC through usb. It should warn that the link with the PC is not yet established. For the link to be fully establish, you need to start the virtual-pen app on your PC which will set your device in accessory mode.
    On the linux host, launch the Virtual Pen application, select your device (hit refresh if not shown) then enter the device's screen horizontal and vertical resolutions and then press "connect". 
    Upon the first connection, Android should ask you to allow the Virtual Pen app to handle the connection - press ok.
     Once this done, you should be able to use your pen and see your PC cursor move as intended. Note that this software is still in beta stage and still ought to be tested with various devices.
    

Android Virtual Pen

Setzer lets you Write LaTeX documents with an easy to use yet full-featured editor.
      Features include:
      
        Buttons and shortcuts for many LaTeX elements and special characters
        Comfortable document creation wizard
        Dark mode
        Helpful error messages in the build log
        Looks great on the Gnome desktop
        Good screen to content ratio
        Arguably the best .pdf viewer of any LaTeX editor
      
    

Setzer

Lonewolf is a productivity application based on the principles of Kanban.Manages listsCreate cardsOrganize cards with lablesSet due dates for yourselfAdd attchmentsWrite descriptions of your tasks in markdownSplit up larger tasks with check listsKeep your thoughts by adding comments for your future self

Lonewolf

Organize and track your tasks with ease and flexibility

KDE Itinerary is a digital travel assistant with a priority on protecting your privacy.
      Features:
      
        Timeline view of a unified travel itinerary with automatic trip grouping.
        Supports train, bus and flight bookings as well as hotel, restaurant, event and rental car reservations.
        Boarding pass management.
        Supports ticket management for multi-traveler and multi-ticket bookings.
        Automatic booking data extraction from various input formats, performed locally on your device.
        Real-time delay and platform change information for trains.
        Weather forecast for destination along your trip.
        Full control over all online access.
        Selection of alternative train connections on unbound tickets or on missed connections.
        Local ground transportation navigation between elements of your itinerary.
        Train coach layout view (for some operators only).
        Train station and airport per-floor maps based on OpenStreetMap data.
        Available dock-based or free-floating rental bikes can be displayed on the train station map.
        Personal travel statistics to monitor environmental impact.
      
      KDE Itinerary works best alongside KMail's itinerary extraction plug-in and KDE Connect, or Nextcloud Hub and DavDroid.
    

KDE Itinerary

Quick Lookup is a simple GTK dictionary application powered by Wiktionary™.Features include:Lookup definitions for words or phrasesChoose language by entering language name or ISO-639-1 codeOpen internal links within the appGo back to previous page with the back buttonLook up selected text from any app by setting a keyboard shortcut to launch this app with the “--selection” command line optionWiktionary is a trademark of the Wikimedia Foundation. This program is not endorsed by or affiliated with the Wikimedia Foundation.

Quick Lookup

Gnome next meeting applet is an applet for Gnome using calendars from Gnome Online Accounts to show the time to your next meeting and easily open the meeting url.

Features includeUse Gnome Online Account for calendar sources.Make it easy to know how long you have until your next meeting.Detect video conference URLs allow to quickly click on it to join (Google Meet, Zoom, Bluejeans, supported).Shows the documents link attached to the current meeting.Change icons 5mn before and after meeting.Fully configurable.

Gnome Next Meeting Applet

Keep your Markdown managed. Write epic tales, a novel, that screen play, keep a journal, or finally write that book report.ThiefMD is a Markdown Editor providing an easy way to organize, format, and compile your markdown documents. When you're ready to Publish, go to ePub, PDF, Office, Ghost, WordPress, Write-Freely, or more.Import from and Export to Office, ePUB, HTML, and more. ThiefMD is your one stop shop for making and managing markdown mischief.Working on a screenplay? ThiefMD can handle and combine Fountain files as well. Write your novel and prepare for that movie deal all from the same app.

ThiefMD

Grisbi is a very functional personal financial management program with a lot of features: checking, cash and liabilities accounts, several accounts with automatic contra entries, several currencies, including euro, arbitrary currency for every operation, money interchange fees, switch to euro account per account, description of the transactions with third parties, categories, sub-categories, financial year, notes, breakdown, transfers between accounts, even for accounts of different currencies, bank reconciliation, scheduled transactions, automatic recall of last transaction for every third party, nice and easy user interface, user manual, QIF import/export.

Grisbi

Test your strategies on the Linux Trading Simulator, create reports, learn, try or develop new strategies for your trading.Features:Multiple instruments.Create Reports to display your performance as a virtual trader.Dark variant theme.Configurable data source.Draw Fibonacci analisys tool.

TradeSim

A powerful, scriptable, modular calculator aimed at scientific, engineering or computing work. Long calculations can be written as a list of calculations, storing results into variables to be used in the next stage. All features can be added, removed, and customised, and new features can be written in python.
      Features:
      
        Numbers can be in any base and convert to another base
        Variable assignment
        Statistical and trigonometry functions
        Date and time manipulations and calculations
        Boolean logic
        Units, including conversion to other units - metric, US customary and British Imperial units supported
        Arrays - any operator or function can accept arrays as input and automatically execute across the entire array
        String manipulation, including regular expressions - strings can be used as numbers, and vice-versa
        User-defined functions - write your own functions you can then reuse
        Enable and disable any features in the calculator you wish, and customise how features work
        Write your own features in python to add to the calculator
      
    

Modular Calculator

A powerful, scriptable, modular calculator aimed at scientific, engineering or computing work.

The tool is used across all ages to graphically represent their understanding. It can be used in organisations for brainstorming, managing knowledge and organising information.

CmapTools

Allows users to to create and share concept maps.

Queries is a workbench to interact with relational databases, with initial support for Postgres.FeaturesView relevant contextual information (schemata, tables, views and columns) when writing SQL.SQL statements are parsed and verified at the client side for immediate feedback and faster debugging.Support for encrypted connections via SSL/TLS, allowing you to interact safely with remote databases.Statements are executed asynchronously when possible, reducing execution time for long statement sequences.Build line, scatter and bar graphs without external tools using plain SQL by aggregating your data according to a JSON specification.Export results as plain CSV files or build dynamic HTML reports from tables and views.

Queries

A workbench to interact with relational databases.

ReText is a text editor for plain text markup languages, such as Markdown and reStructuredText.
      It supports tabs, live text preview, synchronized scrolling and syntax highlighting.
      ReText can export to HTML, ODT and PDF formats. It is also possible to write custom export extensions.
    

ReText

Simple text editor for Markdown and reStructuredText

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