libunwind is a production-quality unwinder, with platform support for DWARF unwind info, SjLj, and ARM EHABI.

Qt is a cross-platform C++ application framework. Qt's primary feature is its rich set of widgets that provide standard GUI functionality.

This is the Phobos standard library that comes with the D2 compiler.

This is the Phobos standard library that comes with the D2 compiler.

OpenSearch is a scalable, flexible, and extensible open-source software suite for search, analytics, and observability applications. OpenSearch offers a vendor-agnostic toolset you can use to build secure, high-performance, cost-efficient applications. Use OpenSearch as an end-to-end solution or connect it with your preferred open-source tools or partner projects.

Puppet lets you centrally manage every important aspect of your system using a cross-platform specification language that manages all the separate elements normally aggregated in different files, like users, cron jobs, and hosts, along with obviously discrete elements like packages, services, and files.