docs: add bashdep to installation page

docs/installation.md

@@ -48,6 +48,37 @@ We try to keep it stable, but there is no promise that we won't change functions
 Committing (or not) this file to your project it's up to you. In the end, it is a dev dependency.
 :::
 
+## bashdep
+
+You can manage your dependencies using [bashdep](https://github.com/Chemaclass/bashdep),
+a simple dependency manager for bash.
+
+::: code-group
+```bash-vue [install-dependencies.sh]
+# Ensure bashdep is installed
+[ ! -f lib/bashdep ] && {
+  mkdir -p lib
+  curl -sLo lib/bashdep \
+    https://github.com/Chemaclass/bashdep/releases/download/0.1/bashdep
+  chmod +x lib/bashdep
+}
+
+# Add latest bashunit release to your dependencies
+DEPENDENCIES=(
+  "https://github.com/TypedDevs/bashunit/releases/download/{{ pkg.version }}/bashunit"
+)
+
+# Load, configure and run bashdep
+source lib/bashdep
+bashdep::setup dir="lib" silent=false
+bashdep::install "${DEPENDENCIES[@]}"
+```
+```[Output]
+Downloading 'bashunit' to 'lib'...
+> bashunit installed successfully in 'lib'
+```
+:::
+
 ## Brew
 
 You can install **bashunit** globally in your macOS (or Linux) using brew.