Debootstrap is used to create a Debian base system from scratch, without requiring the availability of dpkg or apt. It does this by downloading .deb files from a mirror site, and carefully unpacking them into a directory which can eventually be chrooted into.

The Debian ports-archive digitally signs its Release files. This package contains the archive keys used for that.

This package only provides the bts script from the Debian devscripts archive. It's useful for Guix Developers that interact with GNU's debbugs server.

This package mainly meant for caching packages of Debian or Debian based distributions (like Trisquel) through HTTP. It also has partial support for HTTPS and other distributions / repositories (OpenSUSE, Arch Linux, Sourceforge mirror network, Cygwin mirrors) as this requires more configuration and comes with some limitations. Packages can be imported manually either by copying files from another apt-cacher-ng instance or by importing them from CD, DVD, jigdo, etc. While apt-cacher-ng can work offline, it requires some online access before that to build valid index files. It also supports partial mirroring. It can be configured through configuration files and/or a web interface and/or a command line tool.

The Trisquel distribution signs its packages. This package contains the archive keys used for that.

apt-mirror is a small tool that provides the ability to selectively mirror APT sources, including GNU/Linux distributions such as Debian and Trisquel.

The Kali distribution signs its packages. This package contains the archive keys used for that.

The Debian project digitally signs its Release files. This package contains the archive keys used for that.

This package provides a number of utilities which are mostly for use in installation scripts of Debian packages. The programs included are add-shell, installkernel, ischroot, remove-shell, run-parts, savelog, tempfile, and which.

This package provides the low-level infrastructure for handling the installation and removal of Debian software packages.

The Elxr distribution signs its packages. This package contains the archive keys used for that.

The Ubuntu project digitally signs its Release files. This package contains the archive keys used for that.

Reprepro is a tool to manage a repository of Debian packages (.deb, .udeb, .dsc, ...). It stores files either being injected manually or downloaded from some other repository (partially) mirrored into one pool/ hierarchy. Managed packages and files are stored in a Berkeley DB, so no database server is needed. Checking signatures of mirrored repositories and creating signatures of the generated Package indices is supported.

The Pardus distribution signs its packages. This package contains the archive keys used for that.

pbuilder is a personal package builder for Debian packages.

• pbuilder constructs a chroot system, and builds a package inside the chroot. It is an ideal system to use to check that a package has correct build-dependencies. It uses apt extensively, and a local mirror, or a fast connection to a Debian mirror is ideal, but not necessary.

• pbuilder create uses debootstrap to create a chroot image.

• pbuilder update updates the image to the current state of testing/unstable/whatever.

• pbuilder build takes a *.dsc file and builds a binary in the chroot image.

• pdebuild is a wrapper for Debian Developers, to allow running pbuilder just like debuild, as a normal user.

The Pureos distribution signs its packages. This package contains the archive keys used for that.

C-Vise is a Python port of the C-Reduce tool that is fully compatible and uses the same efficient LLVM-based C/C++ clang_delta reduction tool.

Stress Make is a customized GNU Make that explicitly manages the order in which concurrent jobs are run to provoke erroneous behavior into becoming manifest. It can run jobs in the order in which they're launched, in backwards order, or in random order. The thought is that if code builds correctly with Stress Make, then it is likely that the Makefile contains no race conditions.

This is a Linux kernel module that implements workarounds needed for using the rr debugger with AMD Zen CPU.

cgdb is a lightweight curses (terminal-based) interface to the GNU Debugger (GDB). In addition to the standard gdb console, cgdb provides a split screen view that displays the source code as it executes. The keyboard interface is modeled after vim, so vim users should feel at home using cgdb.

cppdap is a C++11 library ("SDK") implementation of the Debug Adapter Protocol, providing an API for implementing a DAP client or server. cppdap provides C++ type-safe structures for the full DAP specification, and provides a simple way to add custom protocol messages.

QEMU is a generic machine emulator and virtualizer.

When used as a machine emulator, QEMU can run OSes and programs made for one machine (e.g. an ARM board) on a different machine---e.g., your own PC. By using dynamic translation, it achieves very good performance.

When used as a virtualizer, QEMU achieves near native performances by executing the guest code directly on the host CPU. QEMU supports virtualization when executing under the Xen hypervisor or using the KVM kernel module in Linux. When using KVM, QEMU can virtualize x86, server and embedded PowerPC, and S390 guests.

Zzuf is a transparent application input fuzzer. It works by intercepting file operations and changing random bits in the program's input. Zzuf's behaviour is deterministic, making it easy to reproduce bugs.

Fiu provides CLI utilities and a C library to mark points of failure inside your code and to enable/disable the failure of those points.