| srm-cuarzo | Simple Rendering Manager |
| spot | Native Spotify client for the GNOME desktop |
| sparse | Semantic parser for C |
| simplescreenrecorder | Screen recorder for Linux |
| swayosd | GTK based on screen display for keyboard shortcuts |
| t4kcommon | Library of code shared between tuxmath and tuxtype |
| scanmem | Memory scanner for finding and poking addresses in executing processes |
| tcptrack | libpcap based program for live TCP connection monitoring |
| snapper | Tool for Linux filesystem snapshot management |
| timeshift | System restore tool for Linux |
| thinkfan | Simple, lightweight fan control program |
| sc-controller | User-mode driver and GUI for Steam Controller and other controllers |
| systembus-notify | System bus notification daemon |
| ssrc | High quality audio sampling rate converter |
| sirius | Domain specific library for electronic structure calculations |
| scorched3d | 3D Clone of the classic Scorched Earth |
| scite | SCIntilla based Text Editor |
| serigy | Store important information from your clipboard selectively and securely |
| tiny8086 | Open-source small 8086 emulator |
| seturgent | Set an application's urgency hint (or not) |
| siglo | GTK app to sync InfiniTime watch with PinePhone |
| taler-twister | Fault injector for HTTP traffic |
| tftp-hpa | TFTP tools - a lot of fixes on top of BSD TFTP |
| swaynotificationcenter | Simple notification daemon with a GUI built for Sway |
| theforceengine | Modern "Jedi Engine" replacement supporting Dark Forces, mods, and in the future, Outlaws |
| swaybg | Wallpaper tool for Wayland compositors |
| steamworks | Configuration information distributed over LDAP in near realtime |
| systemd-bootchart | Boot performance graphing tool from systemd |
| solarus | Zelda-like ARPG game engine |
| sil-q | Roguelike game set in the First Age of Middle-earth |
| swappy | Wayland native snapshot editing tool, inspired by Snappy on macOS |
| tdrop | Glorified WM-Independent Dropdown Creator |
| system-config-printer | |
| stretchly | Break time reminder app |
| svaba | Structural variant and INDEL caller for DNA sequencing data, using genome-wide local assembly |
| srb2 | Sonic Robo Blast 2 is a 3D Sonic the Hedgehog fangame based on a modified version of Doom Legacy |
| tela-circle-icon-theme | Flat and colorful personality icon theme |
| texmaker | TeX and LaTeX editor |
| sgt-puzzles | Simon Tatham's portable puzzle collection |
| svxlink | Advanced repeater controller and EchoLink software |
| tetraproc | Converts the A-format signals from a tetrahedral Ambisonic microphone into B-format signals ready for recording |
| swaysettings | GUI for configuring your sway desktop |
| sdl3-shadercross | Shader translation library |
| sope | Extensive set of frameworks which form a complete Web application server environment |
| symcc | Efficient compiler-based symbolic execution |
| spyder | Scientific python development environment |
| ssl-cert-check | Bourne shell script that can be used to report on expiring SSL certificates |
| sfwbar | Flexible taskbar application for wayland compositors, designed with a stacking layout in mind |
| simgear | Simulation construction toolkit |
| stevia | User friendly on screen keyboard for Phosh |
| sly | Friendly image editor |
| strace | System call tracer for Linux |
| soundconverter | Leading audio file converter for the GNOME Desktop |
| sysmenu | Simple program launcher using GTK4 |
| simpleBluez | C++ abstraction layer for BlueZ over DBus |
| smc | Generate state machine code from text input (state diagram) |
| sstp | SSTP client for Linux |
| sommelier | Nested Wayland compositor with support for X11 forwarding |
| tango-icon-theme | Basic set of icons |
| sfxr-qt | Sound effect generator, QtQuick port of sfxr |
| srsran | Open-source 4G and 5G software radio suite |
| ssdfs-utils | SSDFS file system utilities |
| srandrd | Simple randr daemon |
| taxi | FTP Client that drives you anywhere |
| slock | Simple X display locker |
| snis-assets | Assets for Space Nerds In Space, a multi-player spaceship bridge simulator |
| simplenes | NES emulator written in C++ |
| tlp | Advanced Power Management for Linux |
| stenc | SCSI Tape Encryption Manager |
| sticky-notes | Simple sticky notes app for GNOME |
| timbreid | Collection of audio feature analysis externals for puredata |
| sunpaper | Utility to change wallpaper based on local weather, sunrise and sunset times |
| textcompare | Simple desktop app to compare old and new text |
| tgt | iSCSI Target daemon with RDMA support |
| squid | Caching proxy for the Web supporting HTTP, HTTPS, FTP, and more |
| tlspool | TLS daemon with PKCS #11 backend |
| supersonic-wayland | Lightweight cross-platform desktop client for Subsonic music servers |
| slop | Queries for a selection from the user and prints the region to stdout |
| tinycompress | Userspace library for anyone who wants to use the ALSA compressed APIs |
| sysctl | |
| 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 |