Marathono is a GUI tool that helps you manage long-running processes in macOS, so you don't have to maintain multiple windows/tabs/tmux sessions in your Terminal.
While most commands should just work in Marathono the same way as it works in Terminal, Marathono doesn't have the exact same environment as your shell has. You should be able to figure out a workaround very easily by looking at the output of the command (click "Show Output" in the dropdown menu).
Some processes may trap SIGINT and/or SIGTERM signal and refuse to quit. If that's case for your process, you may want to select a different kill signal for this process in the "Edit Process" window. SIGKILL cannot be trapped and should always work. If even SIGKILL doesn't kill your process, please file a bug report.
Of course. Nothing stops you from running short-lived processes with Marathono. I do that all the time. I would just imagine people would use Marathono for long-running processes mostly. Oh, by the way, "restart process on file changes" also works for short-lived processes.
Just drag them around.
Marathono uses Launchd to manage life cycles of processes. When a process is launched for the first time, Marathono creates a plist file under
~/Library/LaunchAgents. When Marathono quits, all plist files managed by Marathono are removed. Marathono runs your commands in a login, interactive pseudo-terminal.
Use GitLab issue tracker. If you don't have a GitLab account, you could sign in with your GitHub in just two mouse clicks. You could also ask me quick questions on Twitter.
Apple requires all apps deployed to App Store to be sandboxed. However, Marathono allows you to run arbitrary commands and thus it cannot really be sandboxed.