| sideswap | Cross‑platform, non‑custodial wallet and atomic swap marketplace for the Liquid Network |
| sp800-90b-entropyassessment | Implementation of min-entropy assessment methods included in Special Publication 800-90B |
| seahorse | Application for managing encryption keys and passwords in the GnomeKeyring |
| semodule-utils | SELinux policy core utilities (packaging additions) |
| snippetpixie | Your little expandable text snippet helper |
| stellar-core | Implements the Stellar Consensus Protocol, a federated consensus protocol |
| slirp4netns | User-mode networking for unprivileged network namespaces |
| spice-vdagent | Enhanced SPICE integration for linux QEMU guest |
| supercollider-with-sc3-plugins | Programming language for real time audio synthesis |
| swiften | XMPP library for C++, used by the Swift client |
| socalabs-voc | Socalabs Wacky Vocal Synthesizer Plugin |
| snippetexpandergui | Your little expandable text snippet helper GUI |
| timezonemap | GTK+3 Timezone Map Widget |
| tinyalsa | Tiny library to interface with ALSA in the Linux kernel |
| tinygettext | A simple gettext replacement that works directly on .po files |
| singularity-overriden-nixos | |
| shncpd | Simple, stupid and slow HNCP daemon |
| sedutil | DTA sedutil Self encrypting drive software |
| swaylock-plugin | Screen locker for Wayland, forked from swaylock |
| syspower | Simple power menu/shutdown screen for Hyprland |
| selinux-refpolicy | SELinux Reference Policy v2 |
| textpieces | Swiss knife of text processing |
| simple-mtpfs | Simple MTP fuse filesystem driver |
| socalabs-papu | Socalabs Nintendo Gameboy PAPU Emulation Plugin |
| tcp_wrappers | TCP Wrappers, a network logger, also known as TCPD or LOG_TCP |
| teensy-udev-rules | udev rules for the Teensy microcontrollers |
| smem | Memory usage reporting tool that takes shared memory into account |
| spotify-cli-linux | Command line interface to Spotify on Linux |
| server-box | Server status & toolbox |
| taler-wallet-core | CLI wallet for GNU Taler written in TypeScript and Anastasis Web UI |
| skippy-xd | Expose-style compositing-based standalone window switcher |
| smartdns | Local DNS server to obtain the fastest website IP for the best Internet experience |
| sonic-pi | Free live coding synth for everyone originally designed to support computing and music lessons within schools |
| selectdefaultapplication | Very simple application that lets you define default applications on Linux in a sane way |
| sblast | Blast your Linux audio to DLNA receivers |
| surrealist | Visual management of your SurrealDB database |
| swiftPackages.Dispatch | Grand Central Dispatch |
| swapspace | Dynamic swap manager for Linux |
| slacky | Unofficial Slack desktop client for arm64 Linux |
| themix-gui | Graphical application for designing themes and exporting them using plugins |
| speedscope | Fast and interactive web-based viewer for performance profiles |
| stepmania | Free dance and rhythm game for Windows, Mac, and Linux |
| solidtime-desktop | Modern open-source time-tracking app |
| sweethome3d.textures-editor | Easily create SH3T files and edit the properties of the texture images it contain |
| tautulli | Python based monitoring and tracking tool for Plex Media Server |
| tiramisu | Desktop notifications, the UNIX way |
| signing-party | Collection of several projects relating to OpenPGP |
| tangram | Run web apps on your desktop |
| tartube-yt-dlp | GUI front-end for youtube-dl |
| spice-up | Create simple and beautiful presentations |
| serviio | UPnP Media Streaming Server |
| scanbd | Scanner button daemon |
| sgdboop | Applying custom artwork to Steam, using SteamGridDB |
| sooperlooper | Live looping sampler capable of immediate loop recording, overdubbing, multiplying, reversing and more |
| tacacsplus | Protocol for authentication, authorization and accounting (AAA) services for routers and network devices |
| signify | OpenBSD signing tool |
| spfft | Sparse 3D FFT library with MPI, OpenMP, CUDA and ROCm support |
| syntex | Texture synthesis from examples |
| switcheroo-control | D-Bus service to check the availability of dual-GPU |
| ticketbooth | Keep track of your favorite shows |
| selinux-python | SELinux policy core utilities written in Python |
| sddm-astronaut | Modern looking qt6 sddm theme |
| sleep-on-lan | Multi-platform process allowing to sleep on LAN a Linux or Windows computer, through wake-on-lan (reversed) magic packets or through HTTP REST requests |
| slade | Doom editor |
| snapper-gui | Graphical interface for snapper |
| swell-foop | Puzzle game, previously known as Same GNOME |
| thc-ipv6 | IPv6 attack toolkit |
| smart-wallpaper | Simple bash script that automatically changes your wallpaper depending on if its daytime or nighttime |
| tiny-rdm | Modern, colorful, super lightweight Redis GUI client |
| spi-tools | Simple command line tools to help using Linux spidev devices |
| tagainijisho | Free, open-source Japanese dictionary and kanji lookup tool |
| sks | Easily deployable & decentralized OpenPGP keyserver |
| swayfx | Sway, but with eye candy |
| tabbed | Simple generic tabbed fronted to xembed aware applications |
| sweethome3d.furniture-editor | Quickly create SH3F files and edit the properties of the 3D models it contain |
| sysfsutils | |
| simple-dftd3 | Reimplementation of the DFT-D3 program |
| simple-scan | Simple scanning utility |
| seadrive-gui | GUI part of Seafile drive |
| subtitleeditor | GTK 3 application to edit video subtitles |
| spit | Atomically create a file with content |
| tanidvr | CLI tool for managing and capturing video from DVRs which use the DVR-IP protocol |
| sbctl | Secure Boot key manager |
| st-snazzy | Snazzy terminal (suckless + beautiful) |
| steam-devices-udev-rules | Udev rules list for gaming devices |
| shoreline | Very fast (200+ Gbit/s) pixelflut server written in C with full IPv6 support |
| supergee | Vala based UI for beets |
| sound-juicer | Gnome CD Ripper |
| stone-kingdoms | Real-time strategy game made with LÖVE based on the original Stronghold by Firefly studios |
| thunar-unwrapped | Xfce file manager |
| tahoe-lafs | Tahoe-LAFS, a decentralized, fault-tolerant, distributed storage system |
| socalabs-sn76489 | Socalabs Texas Instruments SN76489 Emulation Plugin |
| stone | TCP/IP repeater in the application layer |
| tdnf | Tiny Dandified Yum |
| sonic-visualiser | View and analyse contents of music audio files |
| ser2net | Serial to network connection server |
| tilda | Gtk based drop down terminal for Linux and Unix |
| service-wrapper | Convenient wrapper for the systemctl commands, borrow from Ubuntu |
| sselp | Prints the X selection to stdout, useful in scripts |
| themechanger | Theme changing utility for Linux |