Long lived application data typically should not contain any thunks. This library can be used to examine values for unexpected thunks, which can then be used in assertions. This can be invaluable in avoiding memory leaks, or tracking down existing ones.

DOSBox-X is a comprehensive DOS emulator, supporting DOS applications including Windows 3.x and Windows 9x, and striving to provide accurate hardware emulation. It is based on the original DOSBox and includes features from a number of forks including SVN Daum, ECE, DOSBox Staging, DOSVAX, and vDosPlus.

Budgie-Desktop is a GTK+ based desktop environment which focuses on simplicity and elegance. It provides a traditional desktop metaphor based interface utilising customisable panel based menu driven system. Budgie-Desktop is written from scratch utilising many GNOME based sub-systems such as GNOME-Session and Mutter.

libportal provides GIO-style C APIs for most Flatpak portals' D-Bus interfaces. It is primarily intended for installation in Flatpak runtimes, where applications can use it to interact with portals; it can also be used to test the portal services.

Elenv is an Emacs Lisp library that provides a consistent interface to detect operating system types, graphic environments, environmental variables, executables, etc.

Rust is a curly-brace, block-structured expression language. It visually resembles the C language family, but differs significantly in syntactic and semantic details. Its design is oriented toward concerns of "programming in the large", that is, of creating and maintaining boundaries - both abstract and operational - that preserve large-system integrity, availability and concurrency.