qubes os 
How to receive reverse shells and expose services to the Internet on QubesOS
QubesOS is amazing for security, and equally amazing at making CTFs 10x harder than they need to be. It’s the firewall’s fault.
…Fix for no audio in minimal templates in QubesOS
The reason why audio won’t work out of the box in minimal templates (debian-12-minimal, fedora-41-minimal) is that the package responsible for sending audio from VMs to your host (dom0 or sys-audio), pipewire-qubes, isn’t included in them by default.
Fixing FreeRDP 3's BadAtom error on QubesOS
When you try to run FreeRDP 3, you will likely get the BadAtom error.
OpenGL driver errors in QubesOS VMs: Why there’s no fix*
QubesOS is built on the principle of isolation, and GPUs aren’t designed to meet the strict isolation requirements QubesOS demands because they prioritize performance instead.
…How to run nix on qubes without crying (much)
Nix is great for keeping your system clean and your sanity slightly intact. But thanks to how QubesOS handles templates and persistence, it’s not plug-and-play.
…How to install Windows on Qubes OS
Installing Windows on Qubes OS can be tricky due to its closed-source nature. Unlike Linux templates designed for Qubes OS, Windows requires the installation of Qubes Windows Tools to function correctly (network, audio, etc.). This guide uses the qvm-create-windows-qube tool, which is the recommended and most secure method.