> I think this is a good idea and I support it. We have a similar problem in MEG and 
> we solved that with external (bash) scripts called in case of alarms. One feature 
> there we have is that for some alarms, several people want to get notified. So 
> people can "subscribe" to certain alarms. The subscription are now handled inside 
> Slack which I like better, but maybe it would be good to have more than one "user 
> responsible". Like if one person is sleeping/traveling, it's good to have a 
> substitute. Can you make an array out of that? Or a comma-separated list?
> 
> Best,
> Stefan

Presently there are 256 characters in the 'users responsible' field, so you can just 
list many users (no space, space or comma whatever). Discord, slack and mattermost 
don't care, they just parse the user tags.

I can still make this an array and pass a std::vector<std::string> into 
al_trigger_class function?