CheatSheet is lets you view available keyboard shortcuts in your current application. Just hold the ⌘-Key a bit longer to get a list of all active short cuts of the current application. It's as simple as that.
Pock can place your macOS Dock inside your MacBook's TouchBar, letting you enjoy your screen in full-size every time!
Free My Desktop is a menubar app that with just one click hides all the icons from your desktop, the dock and the menubar. Available for free!
ActiveDock is Improved Dock for macOS
elementary OS 5 Juno is here. It’s more refined, more productive, and an even better platform for developers. We've majorly updated apps, made the desktop more productive with several new features, refined the overall look and feel, and a whole lot more.
Mokey is a tool to visualise Mac shortcuts.