macOS: add Homebrew information (#261)

README.md

@@ -36,6 +36,8 @@ We provide an easy-to-use installer for each platform we support. Please downloa
 
 Linux DEB/RPM packages are available from [releases](https://github.com/nzbgetcom/nzbget/tags) page or from DEB/RPM [repositories](https://nzbgetcom.github.io).
 
+macOS packages are available from [releases](https://github.com/nzbgetcom/nzbget/releases) page or via [Homebrew](https://brew.sh) package manager. [Homebrew readme](osx/brew-info.md)
+
 Docker images are available for x86-64 / arm64 / armv7 architectures. [Docker readme](docker/README.md)
 
 Synology packages are available as SynoCommunity packages and SPK packages. [Synology readme](synology/README.md)

osx/brew-info.md

@@ -0,0 +1,46 @@
+# Install NZBGet via Homebrew
+
+## Prerequisites
+
+Homebrew package manager (https://brew.sh).
+
+Installation supported on Intel / Apple Silicon Macs.
+
+macOS supported: macOS Mojave+ 10.14+
+
+## Install
+Run from console:
+```
+brew install nzbget
+```
+
+## Post-install
+
+### Starting nzbget
+
+NZBGet Homebrew package conains user service definition.
+To start NZBGet, run from console:
+```
+brew services start nzbget
+```
+And this will start NZBGet at user login too.
+
+### Accessing WebUI
+
+Default WebUI location: http://127.0.0.1:6789
+
+Default login credentials:
+```
+login: nzbget
+password: tegbzn6789
+```
+
+### Unpackers
+
+`7zip` is installed automatically as a direct dependency.
+
+`unrar` can be installed via `rar` Homebrew Cask:
+
+```
+brew install rar --cask
+```