Would be very cool to see a #HardenedBSD port of this by the community: https://securedrop.org/news/securedrop-workstation-1_0_0-released/
SecureDrop Workstation 1.0.0 Released
SecureDrop Workstation 1.0.0 has been released! This is the first release targeting Qubes 4.2 and will require a full reinstall. With 1.0.0, we’re now switching to an open beta: if you are interested in using SecureDrop Workstation, please reach out to us!