Snac is a simple, minimalistic ActivityPub instance written in portable C.

It features:

• Lightweight, minimal dependencies

• Extensive support of ActivityPub operations, e.g. write public notes, follow users, be followed, reply to the notes of others, admire wonderful content (like or boost), write private messages, etc.

• Multiuser support

• Mastodon API support, so Mastodon-compatible apps can be used

• Simple but effective web interface

• Easily-accessed MUTE button to silence users

• Tested interoperability with related software

• No database needed

• Totally JavaScript-free; no cookies either

PolyGlot is a "UCI adapter". It connects a UCI chess engine to an xboard interface.

PolyGlot tries to solve known problems with other adapters. For instance, it detects and reports draws by fifty-move rule, repetition, etc...

Speed Dreams is a car racing simulator featuring high-quality 3D graphics and an accurate physics engine, aiming for maximum realism. Initially forked from TORCS, it features improvements to the graphics and physics simulation, and supports modern input methods such as gamepads by use of the SDL library. It features more than 20 tracks and more than 80 cars to race with. Extra (freely licensed) assets can be downloaded via the in-game download manager.

This package contains the non-functional data for the Speed Dreams racing game.

QVGE is a multiplatform graph editor written in C++/Qt. Its main goal is to make possible visually edit two-dimensional graphs in a simple and intuitive way.

Context Free is a program that generates images from written instructions called a grammar. The program follows the instructions in a few seconds to create images that can contain millions of shapes.

Alga is a library for algebraic construction and manipulation of graphs in Haskell.

Parses .eventlog files emitted by GHC 8.0.2 and later. Includes the ghc-events tool permitting, in particular, to dump an event log file as text.

Lazy SmallCheck is a library for exhaustive, demand-driven testing of Haskell programs. It is based on the idea that if a property holds for a partially-defined input then it must also hold for all fully-defined refinements of the that input. Compared to eager input generation as in SmallCheck,Lazy SmallCheck may require significantly fewer test-cases to verify a property for all inputs up to a given depth.

Several classes that extend the Arrow class, and some transformers that implement or lift these classes.

This is a Haskell module for PortMidi audio library, which supports real-time MIDI input and output.

This package implements functions, analogous to those from Data.List, to create and manipulate infinite lists: data Stream a = Cons a (Stream a). It provides alternative definitions for those Prelude functions that make sense for such streams. Note that this package has (almost) nothing to do with the work on Stream Fusion by Duncan Coutts, Roman Leshchinskiy, and Don Stewart.

Euterpea is a domain-specific language embedded in Haskell for computer music research, education, and development, providing both note-level and signal-level abstractions. It is a descendant of Haskore and HasSound, and is intended for both educational purposes as well as serious computer music applications. Euterpea is a wide-spectrum DSL, suitable for high-level music representation, algorithmic composition, and analysis; mid-level concepts such as MIDI; and low-level audio processing, sound synthesis, and instrument design.

A flexible Haskell implementation of minimum, maximum, minimum-priority, maximum-priority and custom-ordered heaps.

This is the core library of the Gtk2Hs suite of libraries for Haskell based on Gtk+. Gtk+ is an extensive and mature multi-platform toolkit for creating graphical user interfaces.

ThreadScope is a graphical viewer for thread profile information generated by the Glasgow Haskell compiler (GHC).

The Threadscope program allows us to debug the parallel performance of Haskell programs. Using Threadscope we can check to see that work is well balanced across the available processors and spot performance issues relating to garbage collection or poor load balancing.

i2pd is a client for the anonymous I2P network, upon which applications for file sharing, web browsing, instant messaging, and more are built. i2pd allows people from all around the world to communicate and share information securely without restrictions.

FriCAS is a general purpose CAS.

The frimacs package is intended to make it easier to work with and understand the FriCAS computer algebra system. It implements four different major modes for the Emacs text editor:

• frimacs-process-mode: for interaction with a running FriCAS process

• frimacs-help-mode: for displaying help information about the FriCAS system

• frimacs-input-mode: for editing FriCAS script (.input) files

• frimacs-spad-mode: for editing FriCAS library code written in the SPAD language

OCRmyPDF adds an OCR text layer to scanned PDF files, allowing them to be searched

• Generates a searchable PDF/A file from a regular PDF

• Places OCR text accurately below the image to ease copy / paste

• Keeps the exact resolution of the original embedded images

• When possible, inserts OCR information as a "lossless" operation without disrupting any other content

• Optimizes PDF images, often producing files smaller than the input file

• If requested, deskews and/or cleans the image before performing OCR

• Validates input and output files

• Distributes work across all available CPU cores

• Uses Tesseract OCR engine to recognize more than 100 languages

• Keeps your private data private.

• Scales properly to handle files with thousands of pages.

• Battle-tested on millions of PDFs.

QPDF is a command-line program that does structural, content-preserving transformations on PDF files. It could have been called something like pdf-to-pdf. It includes support for merging and splitting PDFs and to manipulate the list of pages in a PDF file. It is not a PDF viewer or a program capable of converting PDF into other formats.

Python extensions for Inkscape core, separated out from main repository.

pikepdf is a Python library for reading and writing PDF files.

This package provides tools for converting SVG graphics to TikZ/PGF code.