[FR] option to wrap hypervisor command in another command

[thkoch2001]

My use case for this would be the same as asked in #123:
I'd like to put a call to tmux in front of the qemu invocation, e.g.:

tmux [...] qemu-system-x86_64 [...]

This way I can have a dedicated persistent tmux session for VM consoles in the background and connect all VMs to this tmux session.

I'd propose a generic microvm option like wrapCommand that would be prefixed to the hypervisor controller command and default to an empty string.

[thkoch2001]

It's actually simple for my use case. Since I'm starting my microvm as a systemd service, I can just put the tmux call in front in the ExecStart line:

ExecStart=%h/.local/state/nix/profile/bin/tmux new-session -A -d -s microvm -n "%i" "exec %h/.local/state/nix/profile/bin/nix run --impure %h/.local/share/microvm/vms/%i/flake"

Tmux has a Recipes page. Would you accept something similar for the HTML docs where the above idea and others like #196 would find a home?

Update: I fixed the systemd config to work with multiple windows in the same tmux session: tmux/tmux#3824

[astro]

Perhaps the FAQ is the right place for a Pull Request?