Merge branch 'main' into dummy

website/docs/quickstart_guide/debian.md

@@ -2,4 +2,37 @@
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-# Debian
+# Debian package
+
+To install the .deb packages for FerretDB on your Debian, Ubuntu, Linux, and other Unix-like systems, you can use `apt` or `dpkg`.
+
+Download the latest FerretDB .deb package from [our release pages](https://github.com/FerretDB/FerretDB/releases).
+
+To install FerretDB .deb package using `dpkg`, run the following command in your terminal:
+
+```sh
+$ sudo apt update
+# Install using dpkg
+$ sudo dpkg -i <filename>.deb
+```
+
+It’s important to note that `dpkg` doesn’t address dependencies.
+If you encounter any errors related to dependencies when installing, you can resolve them by installing all package dependencies with the following command:
+
+```sh
+sudo apt install -f
+```
+
+Instead of using `dpkg`, you can use `apt` to manage, install, and resolve all package dependencies automatically.
+However, you must specify the full path to the .deb package.
+This will stop `apt` from downloading and installing from Ubuntu’s repositories.
+
+For example, if the file is in your current working directory, indicate the path by prepending "`./`" to the filename.
+
+```sh
+$ sudo apt update
+# Install via apt
+$ sudo apt install ./<filename>.deb
+```
+
+Once FerretDB is installed, you can start the software.