Enjoy using your favorite classic HP calculator on your desktop, with this simulator:
      
        Classic series: HP 35, HP 80, HP 45, HP 70
        Woodstock series: HP 21, HP 22, HP 25, HP 25c, HP 27, HP 29c
        Spice series: HP 31e, HP 32e, HP 33e, HP 33c, HP 34c, HP 37e, HP 38c, HP 38e
        Voyager series: HP 10c, HP 11c, HP 12c, HP 15c, HP 16c
        Others: HP 67
      
      Right-click on desktop icon and select 'Set default calculator' to set default model, or choose one of the available simulators from list. Alternatively you can access the configuration dialog from a terminal using flatpak run io.github.mike632t.x11-calc --setup
      Note: For best results the following fonts should be installed: xfonts-base (Debian/Ubuntu), xorg-x11-fonts-base or xorg-x11-fonts-misc (Fedora), font-misc-misc (Gentoo).
    

RPN Calculator


    Built by one of the most respected teams in the Bitcoin industry, Blockstream Green is supported across multiple platforms and is designed for Bitcoin beginners and power users alike.
    
    

Blockstream Green

A simple and secure Bitcoin and Liquid Network wallet


        Change GDM Settings; Apply theme and background, change cursor theme, icon theme
        and night light settings, among other things.
     
    

GDM Settings

OCR powered screen-capture tool to capture information instead of images.
      Usage:
      
        Start NormCap
        Select a region on the screen
        Wait while the text is being extracted
        Paste the result from the clipboard (ctrl+v)
      
      Some notable features:
      
        Works offline (data doesn't leave your computer)
        Supports many different languages
        Supports multi monitor setups
        Heuristic parsing to improve results
        Free and Open Source
        Available for Linux, Windows and macOS
      
      Tags: OCR, Tesseract, screenshot, recognition
    

NormCap


      Brave is on a mission to fix the web by giving users a safer, faster and better
      browsing experience while growing support for content creators through a new
      attention-based ecosystem of rewards.
   
      
      Browse faster by blocking ads and trackers that violate your privacy and cost
      you time and money.
   
    

Brave Browser


       gplaces is a light Gemini client with a high power to weight ratio. In a tiny package, it features:
    
      
        A VT100-compatible shell with completion, history and hints
        .gmi subscriptions
        TOFU and permanent redirects
        Generation of client certificates
        Slightly prettified Gemtext output
        Configurable handlers for various file types
        Quick navigation to recently viewed pages
        Support for other "small internet" protocols: Titan, Spartan, Gopher, Finger and Guppy
      
      
       gplaces should be fairly straightforward to use for anyone used to the command-line and man pages. Type "readme" for a short introduction.
    
    

gplaces


      OpenRCT2 is an open-source re-implementation of RollerCoaster Tycoon 2 (RCT2).
      The gameplay revolves around building and maintaining an amusement park containing
      attractions, shops and facilities. The player must try to make a profit and maintain
      a good park reputation whilst keeping the guests happy. OpenRCT2 allows for both
      scenario and sandbox play. Scenarios require the player to complete a certain
      objective in a set time limit whilst sandbox allows the player to build a more
      flexible park with optionally no restrictions or finance.
    
      
      OpenRCT2 features many changes compared to the original RollerCoaster Tycoon 2 game. A few of them are listed here.
    
      
        User Interface theming.
        Fast-forwarding gameplay.
        Multiplayer support.
        Multilingual. Improved translations.
        OpenGL hardware rendering.
        Various fixes and improvements for bugs in the original game.
        Native support for Linux and macOS.
        Added hacks and cheats.
        Auto-saving and giant screenshots.
      
      
      Original RollerCoaster Tycoon 2 or RollerCoaster Tycoon Classic game files are required in order to play OpenRCT2.
    
    

OpenRCT2

Obsidian is a powerful knowledge base that works on top of a local folder of plain text Markdown files. In Obsidian, making and following connections is frictionless, and with the connections in place, you can explore all of your knowledge in the interactive graph view. Obsidian supports CommonMark and GitHub Flavored Markdown (GFM), along with other useful notetaking features such as tags, LaTeX mathematical expressions, mermaid diagrams, footnotes, internal links and embedding Obsidian notes or external files. Obsidian also has a plugin system with 20+ supported plugins to expand its capabilities.
      The documentation can be accessed by opening the demo vault that is shipped in Obsidian.
      Obsidian will always remain free for personal use, no account or license is required for qualifying use cases described in the End User License Agreement. However, commercial users should purchase a license on Obsidian's website. Users also have the option to purchase a Catalyst license to get early access to insider builds and support the development. Additionally, Obsidian offers an optional paid hosting service for your notes. Details about this optional hosting service can be found on the Obsidian website.
      This distribution is verified by the Obsidian team but isn't supported
      Wayland support can enabled with --socket=wayland in Flatseal which can enable features like pinch zoom
      GPU acceleration can be disabled if necessary by setting OBSIDIAN_DISABLE_GPU=1 in Flatseal
      Pdflatex support in pandoc currently requires installing the org.freedesktop.Sdk.Extension.texlive SDK
      Note: Regular users should disable "Automatic Updates" within Obsidian as public release updates are handled by Flatpak itself. Insiders should keep this enabled to receive insider builds, as those will not be made available on Flathub.
      This flatpak goes into great lengths to provide a nice experience for end users. In order for the Git plugin to work it requires permission to the ssh-auth socket (--socket=ssh-auth). It also exposes the home directory in the sandbox (required for Drag and Drop operations). If you don't use the Git plugin you can disable the ssh-auth socket permission, e.g. using Flatseal. You can also remove access to the home directory if you want and the flatpak will continue to work, albeit with reduced functionality. In case you do remove access to the homedir, note that in order for things to not break for the Git plugin, --persist=.ssh flag has been passed and a bind mount to ~/.var/app/md.obsidian.Obsidian/ is created by flatpak, allowing that location to be used for persistent data (but your home directory's .ssh remains unaccessible)
    

Obsidian

Thonny is a simple Python IDE with features useful for learning programming.
    It comes with a debugger which is able to visualize all the conceptual steps
    taken to run a Python program (executing statements, evaluating expressions,
    maintaining the call stack). There is a GUI for installing 3rd party packages
    and special mode for learning about references.
      See the homepage for more information, screenshots and a walk-through video.
    

Thonny

NOTE: This (community) flatpak currently has issues with distros that use a patched version of pcsc-lite, like Fedora 37 (or older). DON'T report this to Yubico.
      Generating Open Authentication (OATH) time-based TOTP and event-based HOTP one-time password codes, with the help of a YubiKey that protects the shared secrets.
      Features:
      
        Add a credential by scanning a QR code on the screen
        Favorite your most used credentials for easy access
        Keep your secret seeds safe by storing them on a YubiKey
        Require a touch on YubiKey to generate the code
        Protect your credentials with a device password
        Connect an external smart card reader and use the YubiKey over NFC
      
    

Yubico Authenticator

Graphical interface for displaying OATH codes with a YubiKey


      Play local audio files, browse podcasts online or listen to internet radio stations.
    
    

musicpod

GSequencer provides you various tools to play, create, edit and mix your own music.
    It features a step sequencer, piano roll, automation and wave-form editor.
    

GSequencer


      The web browser for techies and people who need a browser that helps them get things done.
      The user interface is fully customizable, including keyboard shortcuts, mouse gestures, and programmable macros.
    
      
        Seize back control of your tabs with features like Workspaces, Tab Stacks, and Tab Tiling.
        Stay on top of all your emails, appointments, to-dos, and news with Mail, Calendar, Tasks, and Feed Reader. (Compatible with IMAP, POP3, CalDAV, and Atom/RSS.)
        Jot down ideas and inspiration with the integrated Notes manager.
        End-to-end encrypted (E2EE) sync of bookmarks, passwords, notes, and more with Vivaldi for desktop, iOS, and Android.
        Efficient built-in Tracker and Ad Blocker.
        Compatible with most browser extensions from the Google Chrome Web Store.
      
      
      NOTE: This package is maintained by but not yet officially endorsed or supported by Vivaldi Technologies.
    
    

Vivaldi


            S3Drive is an easy-to-use software client that converts vast range of protocols (S3, WebDav, FTP etc.) and cloud providers into your personal encrypted file storage with comprehensive syncing and backup options.
        
      
            There are dozens of providers where you can get a free tier account. You can then decide to pay only for additionally used storage or you can fully control your storage by self-hosting S3 or any other back-end.
        
      
            You can start with the simplest option and make adjustments whenever you're ready. Your files are encrypted before they leave your device, so no one beside you can access them. Not even us.
        
      
            Features: Rclone compatible E2E encryption, Drive mount, Sync modes (copy, move, sync, two-way), Content and filename encryption, Secure sharing via encrypted link, Multiple accounts support, Manage files &amp; directories (open, preview, download, copy, delete, rename, folder upload etc.), Preview different file formats (pdf, markdown, txt, audio, video), Simple text editor, Search within directories, Object Lock support, File versioning (delete &amp; restore), Light and dark themes
        
      
            Supported protocols: S3, WebDAV, SFTP, SMB, FTP, HTTP
        
      
            Personal storage: Google Drive, Google Photos, Dropbox, Box, Microsoft OneDrive, pCloud, Proton Drive, Koofr
        
      
            S3 clouds: AWS S3, Backblaze B2, Synology C2, Cloudflare R2, Google Cloud Storage, Wasabi, Linode, IDrive e2, Storj, Scaleway, DigitalOcean Spaces
            Self-hosted: MinIO, SeaweedFS, GarageFS, Openstack Swift S3, Ceph, Zenko CloudServer
            Visit our Docs for full list of supported providers.
        
      
            Available on: Android, iOS, macOS, Windows, Linux, Web
        
      
            If you like what we're doing and would like to support us, please consider upgrading your plan and leave us a review if you haven't already.
        
      
            Other providers: 1Fichier, Akamai Netstorage, Citrix ShareFile, Digi Storage, Enterprise File Fabric, HiDrive, Internet Archive, Jottacloud, Linkbox, Mail.ru Cloud, Mega, Rackspace Cloudfiles, Memset Memstore, OpenDrive, Oracle Object Storage, PikPak, premiumize.me, put.io, QingStor, Quatrix by Maytech, Sia, Storj, SugarSync, Uptobox, Yandex Disk, Zoho WorkDrive
        
      
            Other providers (S3): AWS Snowball Edge, Dreamhost, Huawei OBS, IBM COS (S3), Storadera, Xaweho.de, Petabox, IONOS Cloud, Qiniu Cloud Object Storage (Kodo), RackCorp, Seagate Lyve Cloud, Alibaba OSS, China Mobile Ecloud Elastic Object Storage (EOS), Leviia Cloud Object Storage, Liara, ArvanCloud, Tencent COS, Netease NOS
        
    

S3Drive

Convert S3, SFTP, WebDAV or Rclone back-end into your encrypted storage


      Dissent (previously gtkcord4) is a third-party Discord client designed
      for a smooth, native experience on Linux desktops.
    
      
      Built with the GTK4 and libadwaita for a modern look and feel, it
      delivers your favorite Discord app in a lightweight and visually
      appealing package.
    
      
      Dissent offers a streamlined Discord experience, prioritizing simplicity
      and speed over feature completeness on par with the official client.
      Here's what you can expect:
    
      
        Text chat with complete Markdown and custom emoji support
        Guild folders and channel categories
        Tabbed chat interface
        Quick switcher for channels and servers
        Image and file uploads, previews, and downloads
        User theming via custom CSS
        Partial thread/forum support
        Partial message reaction support
        Partial AI summary support (provided by Discord)
      
      
      It does not aim to support voice chat and other advanced features, as
      these are best handled by the official client or the web app.
    
    

Dissent


            NOTE: This wrapper is not verified by, affiliated with, or supported by Proton
            AG.
        
      
            Proton VPN is the world's only free VPN app that is safe to use and respects
            your privacy. Proton VPN is created by the CERN scientists behind Proton Mail
            - the world's largest encrypted email service. Our fast VPN offers secure,
            private and encrypted internet access with advanced security features. Proton
            VPN also unblocks access to popular websites and streaming platforms.
        
      
            Used by millions worldwide, Proton’s secure no-logs VPN offers 24/7 safe and
            private internet access, and does not record your browsing history, display
            ads, sell your data to third parties, or limit downloads.
        
      Free VPN features available to all users
      
        Unlimited data with no bandwidth or speed restrictions
        Strict no logs policy
        
                Bypass geo restrictions: smart protocol selection automatically overcomes
                VPN bans and unblocks censored sites and content
            
        Full disk encrypted servers protect your data
        
                Perfect forward secrecy: encrypted traffic cannot be captured and decrypted
                later
            
        
                DNS leak protection: we encrypt DNS queries to ensure that your browsing
                activity cannot be exposed through DNS leaks
            
        
                Always-on VPN/ kill switch offers protection against leaks caused by
                accidental disconnections
            
      
      Premium VPN features
      
        Access 2900+ high speed servers across 65+ countries worldwide
        Fast VPN: high speed servers with connections up to 10 Gbps
        
                VPN Accelerator: unique technology increases Proton VPN's speeds by up to
                400% to give a faster browsing experience
            
        Unblock access to blocked or censored content
        Connect up to 10 devices to the VPN at the same time
        
                Ad blocker (NetShield): a DNS filtering feature that protects you from
                malware, blocks ads, and prevents website trackers from following you across
                the web
            
        
                Stream films, sports events, and videos on any streaming service (Netflix,
                Hulu, Amazon Prime Video, Disney+, BBC iplayer etc)
            
        File-sharing and P2P support
        
                Secure Core servers protect against network-based attacks with multi-hop VPN
            
        
                Tor over VPN provides automatic integration with the Tor anonymity network
            
        
                Split tunneling support allows you to select which apps go through the VPN
                tunnel
            
      
      Why choose Proton VPN?
      
        
                No-logs VPN: We do not keep any logs that can identify what you do online
            
        
                DNS and IPv6 leak protection: Our Linux app will never accidentally expose
                your real IP address
            
        
                Easy-to-use interface: The new Proton VPN Linux app has an intuitive
                graphical user interface that lets you quickly activate features and connect
                to servers
            
        
                P2P support: Share and download files using BitTorrent and other P2P
                protocols
            
        
                VPN Accelerator: Free and available to everyone who uses Proton VPN, our
                unique VPN Accelerator technology can improve speeds by over 400%
            
        
                Strong encryption: Our Linux app uses the OpenVPN protocol at its strongest
                encryption settings
            
        
                Based in Switzerland: Switzerland has some of the world's strongest data
                privacy laws
            
        
                Secure streaming: Unblock popular streaming services and watch your favorite
                shows
            
      
      Join the privacy revolution
      
            Your support is important as it allows us to continue our mission to bring
            online freedom to people around the globe. Get our private VPN free today and
            enjoy fast VPN connections and a secure internet, from anywhere.
        
      Required dependencies
      
        NetworkManager-openvpn
        KWallet or GNOME Keyring
        systemd
      
    

Proton VPN

Trusted and easy-to-use VPN app for Linux

Ryujinx is an open-source Nintendo Switch emulator written in C#
      This emulator aims at providing excellent accuracy and performance, a user-friendly interface, and consistent builds.
    

Ryujinx

Prism Launcher is a custom launcher for Minecraft that focuses on predictability, long term stability and simplicity.
      Features:
      
        Easily install game modifications, such as Fabric, Forge and Quilt
        Easily install and update modpacks from the Launcher
        Control your Java settings, and enable Mangohud or Gamemode with a toggle
        Manage worlds and resource packs from the launcher
        See logs and other details easily through a dashboard
        Kill Minecraft in case of a crash/freeze
        Isolate Minecraft instances to keep everything clean
        Install and update mods directly from the launcher
        Customize the launcher with themes, and more
        And cat :3
      
    

Prism Launcher

A custom launcher for Minecraft that allows you to easily manage multiple installations of Minecraft at once

Iaito is the official graphical interface for radare2, a libre reverse engineering framework.
      
        Focus on simplicity, parity with commands, keybindings and r2-style workflows.
        Use r2 plugins (f.ex: no need for r2ghidra-iaito plugin if r2ghidra is installed)
        Aims to cover other radare2 features, not just a disassembler (forensics, networking, bindiffing, solvers, ...).
      
    

Iaito

Monero is a private, secure, untraceable, decentralised digital currency. You
            are your bank, you control your funds, and nobody can trace your transfers
            unless you allow them to do so.
      Privacy: Monero uses a cryptographically sound system to allow you to send
            and receive funds without your transactions being easily revealed on the
            blockchain (the ledger of transactions that everyone has). This ensures that
            your purchases, receipts, and all transfers remain absolutely private by
            default.
      Security: Using the power of a distributed peer-to-peer consensus network,
            every transaction on the network is cryptographically secured. Individual
            wallets have a 25 word mnemonic seed that is only displayed once, and can be
            written down to backup the wallet. Wallet files are encrypted with a passphrase
            to ensure they are useless if stolen.
      Untraceability: By taking advantage of ring signatures, a special property of
            a certain type of cryptography, Monero is able to ensure that transactions are
            not only untraceable, but have an optional measure of ambiguity that ensures
            that transactions cannot easily be tied back to an individual user or computer.
    

Monero GUI

Monero: the secure, private, untraceable cryptocurrency

Fancy yet simple QR Codes scanner and generator.
      Features:
      
        QR Code generation
        Scanning with a camera
        Scanning from a screenshot
        Parses and displays QR code content when possible
      
    

Decoder


      File Roller is a GNOME application for opening, creating, and
      modifying archive and compressed archive files.
    
      
      File Roller supports a wide range of different archive files, including:
    
      
        gzip archives (.tar.gz, .tgz)
        bzip archives (.tar.bz, .tbz)
        zip archives (.zip)
        xz archives (.tar.xz)
      
    

File Roller

Open, modify and create compressed archive files


      Flowblade is a multitrack non-linear video editor released under GPL3 license.
      From beginners to masters, Flowblade helps make your vision a reality of image and sound.
    
    

Flowblade


      pocket-sync is a GUI to do stuff with the Analogue Pocket, including installing openFPGA cores, and managing game files.
    
    

pocket-sync

A GUI to do stuff with the Analogue Pocket


      The Zed Attack Proxy (ZAP) is one of the world’s most popular 
      free security tools and is actively maintained by a dedicated 
      international team of volunteers. It can help you automatically find 
      security vulnerabilities in your web applications while you are developing 
      and testing your applications. Its also a great tool for experienced 
      pentesters to use for manual security testing.
    
    


				FreeRDP flatpak provides xfreerdp client for systems lacking proper H264 support.
				This build is focused on compatibility with windows RDP servers and ships custom OpenSSL 1.1.1 to allow working connections to older systems like Windows 7 or Server 2008
    
    

FreeRDP Remote Desktop Client

FreeRDP (Remote Desktop Protocol) Client for Linux

OpenChrom® is a vendor independent open source software for chromatography, spectrometry and spectroscopy. It has a strong focus on chromatography and nominal mass spectrometry, but next to GC/MS and GC/FID it has basic support for HPLC-UV/VIS, FTIR, PCR and NMR.
      The base version is free and open source software with most of it curated under the Eclipse ChemClipse umbrella. Its numerous carefully reverse-engineered file format converters for vendors like Agilent, Thermo, PerkinElmer, Shimadzu, Varian, Bruker, ChromTech, Thermo/Finnigan, Waters, CAMAG, ABSciex, MassFinder, EZChrom... are however closed source and have to be installed at runtime accepting the proprietary license terms.
      Moreover the Lablicate marketplace allows for the installation of proprietary databases and plug-ins to speed up workflows. These are reserved for commercial customers. Students with a valid university e-Mail can apply for significant discounts on the Lablicate portfolio.
    

OpenChrom


      Notesnook is a free (as in speech) &amp; open source note taking app
      focused on user privacy &amp; ease of use. To ensure zero knowledge
      principles, Notesnook encrypts everything on your device using
      XChaCha20-Poly1305 &amp; Argon2.
    
      
      Notesnook is our proof that privacy does not (always) have to come at the
      cost of convenience. Our goal is to provide users peace of mind &amp; 100%
      confidence that their notes are safe and secure. Our decision to go fully
      open source is one of the most crucial steps towards that.
    
      
      Notesnook is a user focused note taking tool meant to offer a fully
      end-to-end encrypted note taking experience for everyone. This includes
      the majority of our less tech savy users who just want to take notes
      without all the hassle.
    
      
      In short, Notesnook aims to offer a complete replacement for other
      insecure note taking tools like Evernote &amp; Notion. Because let's be
      honest, these tools offer great productivity but at a great cost to your
      privacy.
    
    

Notesnook

A fully open source & end-to-end encrypted note taking alternative to Evernote


      Weasis is a multipurpose standalone and web-based DICOM viewer with a highly modular architecture. It is a very popular clinical viewer used in healthcare by hospitals, health networks, multicenter research trials, and patients.
    
      
        Flexible integration to PACS, VNA, RIS, HIS or PHR
        Responsive user interface and work well on high DPI screens
        Web access through weasis protocol
        Multi-language support
        Configuration of preferences on server-side and client-side
        API for building custom plug-ins
        DICOM Send (storeSCU and STOW-RS)
        DICOM Query/Retrieve (C-GET, C-MOVE and WADO-URI) and DICOMWeb (QUERY and RETRIEVE)
        Dicomizer module (allow importing standard images and convert them in DICOM)
      
    

Weasis

IRPF is an app officially distributed by the Special Department of Federal Revenue of Brazil, to help Brazilian citizens file their income tax return.
      NOTE: This wrapper is not verified by, affiliated with, or supported by any Brazilian government agency.
    

IRPF 2024

Do your taxes in Brazil (Calendar year of 2023)

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