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+# River
+
+Library and CLI tool for monitoring the [River Wayland Compositor](https://isaacfreund.com/software/river/).
+
+## Installation
+
+1. install dependencies
+
+:::code-group
+
+```sh [<i class="devicon-archlinux-plain"></i> Arch]
+sudo pacman -Syu meson json-glib gobject-introspection
+```
+
+```sh [<i class="devicon-fedora-plain"></i> Fedora]
+sudo dnf install meson gcc json-glib-devel gobject-introspection-devel
+```
+
+```sh [<i class="devicon-ubuntu-plain"></i> Ubuntu]
+sudo apt install meson libjson-glib-dev gobject-introspection
+```
+
+:::
+
+2. clone repo
+
+```sh
+git clone https://github.com/aylur/astal.git
+cd astal/lib/river
+```
+
+3. install
+
+```sh
+meson setup build
+meson install -C build
+```
+
+:::tip
+Most distros recommend manual installs in `/usr/local`,
+which is what `meson` defaults to. If you want to install to `/usr`
+instead which most package managers do, set the `prefix` option:
+
+```sh
+meson setup --prefix /usr build
+```
+
+:::
+
+## Usage
+
+You can browse the [River reference](https://aylur.github.io/libastal/river).
+
+### CLI
+
+```sh
+astal-river --help
+```
+
+### Library
+
+:::code-group
+
+```js [<i class="devicon-javascript-plain"></i> JavaScript]
+import River from "gi://AstalRiver"
+
+const river = River.get_default()
+
+for (const output of river.get_outputs()) {
+    print(output.name)
+}
+```
+
+```py [<i class="devicon-python-plain"></i> Python]
+from gi.repository import AstalRiver as River
+
+river = River.get_default()
+
+for output in river.get_outputs():
+    print(output.get_name())
+```
+
+```lua [<i class="devicon-lua-plain"></i> Lua]
+local River = require("lgi").require("AstalRiver")
+
+local river = River.River.get_default()
+
+for _, o in ipairs(river.outputs) do
+    print(o.name)
+end
+```
+
+```vala [<i class="devicon-vala-plain"></i> Vala]
+// Not yet documented
+```
+
+:::