CheckExecutableVersionMatches returns an error if running "$path --version" does not give output indicating that it is appName with version.

FireHandlers executes each handler in handlers with all occurrences of $key or ${key} replaced with values[key].

Initialize sets the app name.

Permissions for mountpoint directories.

EventLog wraps trace.EventLog with logging calls to cli.Log.

ProcessTracker manages multiple goroutines that are deduped by a key and are associated with a stop channel.