OpenSCAD is a software for creating solid 3D CAD objects. It is free software and available for Linux/UNIX, MS Windows and macOS. Unlike most free software for creating 3D models (such as the famous application Blender), OpenSCAD focuses on the CAD aspects rather than the artistic aspects of 3D modeling. Thus this might be the application you are looking for when you are planning to create 3D models of machine parts but probably not the tool for creating computer-animated movies. OpenSCAD is not an interactive modeler. Instead it is more like a 3D-compiler that reads a script file that describes the object and renders the 3D model from this script file. This gives you, the designer, complete control over the modeling process and enables you to easily change any step in the modeling process or make designs that are defined by configurable parameters. OpenSCAD provides two main modeling techniques: First there is constructive solid geometry (aka CSG) and second there is extrusion of 2D outlines. As the data exchange format for these 2D outlines Autocad DXF files are used. In addition to 2D paths for extrusion it is also possible to read design parameters from DXF files. Besides DXF files OpenSCAD can read and create 3D models in the STL and OFF file formats.

The system call intercepting library provides a low-level interface for hooking Linux system calls in user space. This is achieved by hot-patching the machine code of the standard C library in the memory of a process.

This package provides a pipeflow calculation tool that complements pandapower in the simulation of multi energy grids.

Capstone is a lightweight multi-platform, multi-architecture disassembly framework. Capstone can disassemble machine code for many supported architectures such as x86, x86_64, arm, arm64, mips, ppc, sparc, sysz and xcore. It provides bindings for Python, Java, OCaml and more.

Lib3MF is a C++ implementation of the 3D Manufacturing Format (3MF) file standard. It offers a way to integrate 3MF reading and writing capabilities, as well as conversion and validation tools for input and output data. The specification can be downloaded at http://3mf.io/specification/.

Valeronoi (Valetudo + Voronoi) is a companion for Valetudo for generating WiFi signal strength maps. It visualizes them using a Voronoi diagram.

This package provides a utility for converting Kicad (.mod, .lib), Eagle (.lbr), gerber (.gbr, etc..), BXL (.bxl), IBIS (.ibs), symdef, LT-Spice (.asc), QUCS (.sch), and BSDL (.bsd) symbols and footprints and EggBot fonts to gEDA.

minicom is a serial terminal emulator.

Iaito is the official graphical interface for radare2, a libre reverse engineering framework. Iaito focuses on simplicity, parity with commands, features, and keybindings.

CuraEngine is an engine for processing 3D models into 3D printing instructions for Ultimaker and other GCode-based 3D printers. It is part of a larger project called Cura.

OpenCTM is a file format, a software library and a tool set for compression of 3D triangle meshes. The geometry is compressed to a fraction of comparable file formats (3DS, STL, COLLADA...), and the format is accessible through a simple API

This package provides a full Python driver for the Keithley 2600B series of source measurement units. This driver provides access to base commands and higher level functions such as IV measurements, transfer and output curves, etc. Base commands replicate the functionality and syntax from the Keithley's internal TSP Lua functions.

The audio measurement system is a system for audio measurement through sound card. It contains: generator, oscilloscope, audio spectrum analyzer (FFT) and frequency sweep plot.

Kicad is a program for the formation of printed circuit boards and electrical circuits. The software has a number of programs that perform specific functions, for example, pcbnew (Editing PCB), eeschema (editing electrical diagrams), gerbview (viewing Gerber files) and others.

Binary G-code is a new standard for encoding and compressing ASCII G-code files. G-code files are easy to read and interpret, but their downside is that the data is not saved efficiently, and the file size is often very large. Compression of the file is problematic because the printers usually run on limited hardware and they may not have enough memory and/or CPU power to decompress it.

Block and Binary G-Code is a new G-code file format featuring the following improvements over the legacy G-code:

• Block structure with distinct blocks for metadata vs. G-code.

• Faster navigation.

• Coding and compression for smaller file size.

• Checksum for data validity.

• Extensibility through new (custom) blocks. For example, a file signature block may be welcome by corporate customers.

The binary G-code format is flexible and the encoding and compression of individual blocks is variable. libbgcode library contains the routines to convert ASCII G-codes to binary and vice versa.

Libfive is a tool for programmatic computer-aided design (CAD). In libfive, solid models are defined as Scheme or Python scripts, and there are no opaque function calls into the geometry kernel: everything is visible to the user. Even fundamental, primitive shapes are represented as code in the user-level language.

cutecom is a graphical serial terminal, like minicom. It is aimed mainly at hardware developers or other people who need a terminal to talk to their devices.

LinSmith is a Smith Charting program, mainly designed for educational use. As such, there is an emphasis on capabilities that improve the 'showing the effect of'-style of operation.

pcb2gcode is a command-line program for isolation routing and drilling of PCBs. It takes Gerber files as input and outputs G-code files for the milling of PCBs. It also includes an autoleveller for the automatic dynamic calibration of the milling depth.

ADMS is a code generator that converts electrical compact device models specified in high-level description language into ready-to-compile C code for the API of spice simulators. Based on transformations specified in XML language, ADMS transforms Verilog-AMS code into other target languages.

VOLK contains procedures with machine-specific optimizations for mathematical functions. It also provides a machine-independent interface to select the best such procedures to use on a given system.

PythonSCAD is a programmatic 3D modeling application. It allows you to turn simple code into 3D models suitable for 3D printing. It is a fork of OpenSCAD which not only adds support for using Python as a native language, but also adds new features and improves existing ones.

GPX is a post processing utility for converting gcode output from 3D slicing software to x3g files for standalone 3D printing on common 3D printers.

Lcapy is a Python package for linear circuit analysis. It uses SymPy for symbolic mathematics.

Lcapy can symbolically analyse circuits described with netlists or by series/parallel combinations of components. It can also manipulate ontinuous-time and discret-time expressions.