| ride | Remote IDE for Dyalog APL |
| repath-studio | Cross-platform vector graphics editor, that combines procedural tooling with traditional design workflows |
| ringracers | Kart racing video game based on Sonic Robo Blast 2 (SRB2), itself based on a modified version of Doom Legacy |
| satyrographos | Package manager for SATySFi |
| rtop | Toplevel (or REPL) for Reason, based on utop |
| rcon | Source RCON client for command line |
| satisfactorymodmanager | Mod manager and modloader for Satisfactory |
| rstudio | Set of integrated tools for the R language |
| sane-backends | SANE (Scanner Access Now Easy) backends |
| rosie | Tools for searching using parsing expression grammars |
| resticprofile | Configuration profiles manager for restic backup |
| rdesktop | Open source client for Windows Terminal Services |
| runit | UNIX init scheme with service supervision |
| rofimoji | Simple emoji and character picker for rofi |
| sawjap | Pretty-print .class files |
| rocqPackages.vsrocq-language-server | Language server for the vsrocq vscode/codium extension |
| rymdport | Easy encrypted file, folder, and text sharing between devices |
| rpm | RPM package manager |
| rrdtool | High performance logging in Round Robin Databases |
| restic | Backup program that is fast, efficient and secure |
| rhino | Implementation of JavaScript written in Java |
| routino | OpenStreetMap Routing Software |
| reason | User-friendly programming language built on OCaml |
| remmina | Remote desktop client written in GTK |
| rdkafka | Apache Kafka C/C++ client library |
| revolt-desktop | Open source user-first chat platform |
| rpi-imager | Raspberry Pi Imaging Utility |
| remake | GNU Make with comprehensible tracing and a debugger |
| rvvm | RISC-V Virtual Machine |
| tesseract3 | OCR engine |
| syncyomi | Open-source project to synchronize Tachiyomi manga reading progress and library across multiple devices |
| swiftPackages.swift-format | Formatting technology for Swift source code |
| sourcekit-lsp | Language Server Protocol implementation for Swift and C-based languages |
| thrift | Library for scalable cross-language services |
| subversionClient | Version control system intended to be a compelling replacement for CVS in the open source community |
| stog | XML documents and web site compiler |
| syncthingtray | Tray application and Dolphin/Plasma integration for Syncthing |
| surf | Simple web browser based on WebKitGTK |
| tauon | Linux desktop music player from the future |
| slimevr-server | App for facilitating full-body tracking in virtual reality |
| smartmontools | Tools for monitoring the health of hard drives |
| sigrok-cli | Command-line frontend for the sigrok signal analysis software suite |
| swiftPackages.swiftNoSwiftDriver | Swift Programming Language |
| tinyfugue | Terminal UI, screen-oriented MUD client |
| tailwindcss_4 | Command-line tool for the CSS framework with composable CSS classes, standalone v4 CLI |
| soupault | Tool that helps you create and manage static websites |
| syncplay-nogui | Free software that synchronises media players |
| snapcast | Synchronous multi-room audio player |
| supersonic | Lightweight cross-platform desktop client for Subsonic music servers |
| swiftPackages.swift-unwrapped | Swift Programming Language |
| syncplay | Free software that synchronises media players |
| sylpheed | Lightweight and user-friendly e-mail client |
| tailwindcss | Command-line tool for the CSS framework with composable CSS classes, standalone CLI |
| swiftPackages.swift-driver | Swift compiler driver |
| seppo | Personal Social Web |
| scopehal-apps | Advanced test & measurement remote control and analysis suite |
| swig | Interface compiler that connects C/C++ code to higher-level languages |
| snappy-topology | Studying the topology and geometry of 3-manifolds, with a focus on hyperbolic structures |
| sigil | Free, open source, multi-platform ebook (ePub) editor |
| slipshow | Engine for displaying slips, the next-gen version of slides |
| sysdig | Tracepoint-based system tracing tool for Linux (with clients for other OSes) |
| serf | HTTP client library based on APR |
| spice | Complete open source solution for interaction with virtualized desktop devices |
| timewarrior | Command-line time tracker |
| tatl | Implementation of a tableau-based decision procedure for the full Alternating-time Temporal Logic (ATL*) |
| sharkey | Sharkish microblogging platform |
| syncthingtray-minimal | Tray application and Dolphin/Plasma integration for Syncthing |
| tendermint | Byzantine-Fault Tolerant State Machines. Or Blockchain, for short |
| step-cli | Zero trust swiss army knife for working with X509, OAuth, JWT, OATH OTP, etc |
| synfigstudio | 2D animation program |
| swiftPackages.swiftpm | Package Manager for the Swift Programming Language |
| tlrender | Open source library for building playback and review applications |
| teams-for-linux | Unofficial Microsoft Teams client for Linux |
| swiftPackages.swift | Swift Programming Language |
| tesseract4 | OCR engine |
| ternimal | Simulate a lifeform in the terminal |
| speed-dreams | Car racing game - TORCS fork with more experimental approach |
| swift | Swift Programming Language |
| swiftPackages.sourcekit-lsp | Language Server Protocol implementation for Swift and C-based languages |
| swiftPackages.swift-docc | Documentation compiler for Swift |
| tailwindcss_3 | Command-line tool for the CSS framework with composable CSS classes, standalone CLI |
| swiftformat | Code formatting and linting tool for Swift |
| tilem | Emulator and debugger for Texas Instruments Z80-based graphing calculators |
| subversion | Version control system intended to be a compelling replacement for CVS in the open source community |
| squeezelite | Lightweight headless squeezebox client emulator |
| swiftpm | Package Manager for the Swift Programming Language |
| skktools | Collection of tools to edit SKK dictionaries |
| swift-format | Formatting technology for Swift source code |
| tic-80 | Free and open source fantasy computer for making, playing and sharing tiny games |
| sieve-editor-gui | Activate, edit, delete and add Sieve scripts with a convenient interface |
| shipwright | PC port of Ocarina of Time with modern controls, widescreen, high-resolution, and more |
| swi-prolog | Prolog compiler and interpreter |
| stp | Simple Theorem Prover |
| xemu | Original Xbox emulator |
| xalanc | XSLT processor for transforming XML documents |
| wordgrinder | Text-based word processor |
| voicevox | Editor for the VOICEVOX speech synthesis software |
| urweb | Advanced purely-functional web programming language |
| voicevox-engine | Engine for the VOICEVOX speech synthesis software |
| typesense | Fast, typo-tolerant search engine for building delightful search experiences |