Gerbil mode provides font-lock, indentation, navigation, and REPL for Gerbil code within Emacs.

Owl Lisp is a simple programming language. It is intended to provide a portable system for writing standalone programs in a subjectively pleasant dialect of Lisp. It has a minimal core and runtime, purely functional operation, and support for asynchronous evaluation.

femtolisp is a scheme-like lisp implementation with a simple, elegant Scheme dialect. It is a lisp-1 with lexical scope. The core is 12 builtin special forms and 33 builtin functions.

String pattern-matching library for scheme48 based on the SRE regular-expression notation.

Gerbil is an opinionated dialect of Scheme designed for Systems Programming, with a state of the art macro and module system on top of the Gambit runtime. The macro system is based on quote-syntax, and provides the full meta-syntactic tower with a native implementation of syntax-case. It also provides a full-blown module system, similar to PLT Scheme's (sorry, Racket) modules. The main difference from Racket is that Gerbil modules are single instantiation, supporting high performance ahead of time compilation and compiled macros.

Gauche is a R7RS Scheme scripting engine aiming at being a handy tool that helps programmers and system administrators to write small to large scripts quickly. Quick startup, built-in system interface, native multilingual support are some of the goals. Gauche comes with a package manager/installer gauche-package which can download, compile, install and list gauche extension packages.

TR7 is a lightweight Scheme interpreter that implements the revision R7RS small of scheme programming language.

It is meant to be used as an embedded scripting interpreter for other programs. A lot of functionality in TR7 is included conditionally, to allow developers freedom in balancing features and footprint.

Byobu is a Japanese term for decorative, multi-panel screens that serve as folding room dividers. The Byobu software includes an enhanced profile, configuration utilities, and system status notifications for the GNU Screen window manager as well as the Tmux terminal multiplexer.

abduco provides session management i.e. it allows programs to be run independently from their controlling terminal. That is, programs can be detached---run in the background---and then later reattached.

dtach is a tiny program that emulates the detach feature of screen, allowing you to run a program in an environment that is protected from the controlling terminal and attach to it later.

GNU Screen is a terminal window manager that multiplexes a single terminal between several processes. The virtual terminals each provide features such as a scroll-back buffer and a copy-and-paste mechanism. Screen then manages the different virtual terminals, allowing you to easily switch between them, to detach them from the current session, or even splitting the view to show two terminals at once.

reptyr is a utility for taking an existing running program and attaching it to a new terminal. Started a long-running process over ssh, but have to leave and don't want to interrupt it? Just start a screen, use reptyr to grab it, and then kill the ssh session and head on home.

Scribus is a desktop publishing (DTP) application and can be used for many tasks; from brochure design to newspapers, magazines, newsletters and posters to technical documentation. Scribus supports professional DTP features, such as CMYK color and a color management system to soft proof images for high quality color printing, flexible PDF creation options, Encapsulated PostScript import/export and creation of four color separations, import of EPS/PS and SVG as native vector graphics, Unicode text including right to left scripts such as Arabic and Hebrew via FreeType.

Libiscsi is a client-side library to implement the iSCSI protocol that can be used to access the resources of an iSCSI target. It is fully asynchronous with regards to iSCSI commands and SCSI tasks, but a synchronous layer is also provided for ease of use for simpler applications.

sg3-utils is a collection of utilities for devices that use the Small Computer System Interface (SCSI) command set. It includes utilities to read data from, write data to, control, modify, and query the state of SCSI devices.

For example, this package provides command-line tools to:

• copy data based on dd syntax and semantics (called sg_dd, sgp_dd, and sgm_dd)

• check INQUIRY data and VPD pages (sg_inq)

• check mode and log pages (sginfo, sg_modes, and sg_logs)

• spin up and down disks (sg_start)

• do self-tests (sg_senddiag)

• parse sense data (sg_decode_sense)

• and perform various other functions.

In addition, this package includes a library, called libsgutils, which can be used in C and C++ programs to interact with SCSI devices.

lsscsi lists SCSI logical units or SCSI targets. It can also list NVMe namespaces or controllers and show the relationship between a device's primary node name, its SCSI generic (sg) node name and its kernel name.

SDL_ttf is a TrueType font rendering library for SDL.

SDL_image is an image file loading library for SDL that supports the following formats: BMP, GIF, JPEG, LBM, PCX, PNG, PNM, TGA, TIFF, WEBP, XCF, XPM, and XV.

SDL_mixer is a multi-channel audio mixer library for SDL. It supports any number of simultaneously playing channels of 16 bit stereo audio, plus a single channel of music. Supported formats include FLAC, MOD, MIDI, Ogg Vorbis, and MP3.

This package supports two MIDI backends, selectable at runtime. To use the newer fluidsynth library, install a soundfont such as fluid-3 and specify it using the SDL_SOUNDFONTS environment variable. For the legacy timidity backend, install a patch set such as freepats and set the path to the configuration file with TIMIDITY_CFG.

SDL_net is a small, cross-platform networking library for SDL.

This library is a wrapper around the Pango library. It allows you to use TrueType fonts to render internationalized and tagged text in SDL2 applications.

SDL_image is an image file loading library for SDL that supports the following formats: BMP, GIF, JPEG, LBM, PCX, PNG, PNM, TGA, TIFF, WEBP, XCF, XPM, and XV.

Guile-SDL2 provides Guile Scheme bindings for the SDL2 C shared library. The bindings are written in pure Scheme using Guile's foreign function interface.

Simple DirectMedia Layer is a cross-platform development library designed to provide low level access to audio, keyboard, mouse, joystick, and graphics hardware.