The Hard Hat operating system (HOS) is a hardened Fedora Linux that aims to utilize SELinux, seccomp, and other security technologies to provide a more secure desktop experience. The main project page:

Installation Instructions

Run the following commands as root to enable the Copr repository.

  1. Add the repository: dnf enable hardhatos/release

  2. Update your cache: dnf update

  3. You can now search and install software, all of which are shown in the Packages section: [Link]

Active Releases

The following unofficial repositories are provided as-is by owner of this project. Contact the owner directly for bugs or issues (IE: not bugzilla).

Release Architectures Repo Download Fedora 36 x86_64 (0)* Fedora 36 (0 downloads)

* Total number of packages downloaded in the last seven days.

External Repository List

The following repositories are accessible during builds

This is a companion discussion topic for the original entry at