Possibility of adding extra arguments to nh in config

[DrTeagle]

Howdy, I love topgrade, but I currently am unable to find a way to pass --commit-lock-file argument to nh, I believe it should be possible. I dont see a way to do it in the config, but I did find where it is called which is, I assume, this code:

pub(super) fn nh_switch(ctx: &ExecutionContext, nh: &PathBuf, args: &NhSwitchArgs<'static>) -> Result<()> {
    if args.print_separator {
        print_separator(format!("nh {}", args.installable_type));
    }

    let mut cmd = ctx.execute(nh);
    cmd.arg(args.installable_type);
    cmd.arg("switch");
    cmd.arg("-u");

    if !ctx.config().yes(Step::System) {
        cmd.arg("--ask");
    }
    cmd.status_checked()?;
    Ok(())
}

fn nix_args() -> [&'static str; 2] {
    ["--extra-experimental-features", "nix-command"]
}

[GideonBear]

Hi! Adding arbitrary flags to commands is a feature I've wanted to add for a while, and is being discussed in #1472. Feel free to add a comment or thumbs-up there.
Before then (since #1472 is going to take a while), you're free to open a PR to add this as a configuration option, similarly to #1685.
I appreciate the question in any case, it's good to know we're going in the right direction :)