inconshreveable/forego

Forego is a tool that lets you run multiple parts of an application at the same time from a single command. If your app has a web server and a background worker, for example, you normally need to open separate terminal windows to start each one. This tool lets you start them all at once with one command, and it shows their combined output in a single, color-coded stream so you can see what each part is doing. You describe the pieces of your app in a text file called a "Procfile," where each line names a process and the command that starts it. When you run the start command, the tool reads that file and launches everything listed. Each process's output is labeled with its name, so you can tell which log line came from the web server versus the worker. This is useful for developers who are building apps with multiple components, say, a Rails web server, a Sidekiq job processor, and a streaming service, and want a quick way to run the whole stack locally during development. It's especially handy for teams whose production environment uses a similar Procfile-based setup, so the local workflow mirrors how the app runs in the real world. The project is a Go reimplementation of an earlier Ruby tool called Foreman, which does the same thing. The main appeal of rewriting it in Go is that the result is a single self-contained binary: you download it and run it, with no need to install a language runtime or manage dependencies first. Beyond that, the README doesn't go into detail on additional features or configuration options.