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docs/source/tutorial/installation/installation-basics.md

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+# Installation Basics
+
+## Platform support
+
+JupyterHub is supported on Linux/Unix based systems. To use JupyterHub, you need
+a Unix server (typically Linux) running somewhere that is accessible to your
+team on the network. The JupyterHub server can be on an internal network at your
+organization, or it can run on the public internet (in which case, take care
+with the Hub's [security](./getting-started/security-basics)).
+
+JupyterHub officially **does not** support Windows. You may be able to use
+JupyterHub on Windows if you use a Spawner and Authenticator that work on
+Windows, but the JupyterHub defaults will not. Bugs reported on Windows will not
+be accepted, and the test suite will not run on Windows. Small patches that fix
+minor Windows compatibility issues (such as basic installation) **may** be accepted,
+however. For Windows-based systems, we would recommend running JupyterHub in a
+docker container or Linux VM.
+
+[Additional Reference:](https://www.tornadoweb.org/en/stable/#installation)
+Tornado's documentation on Windows platform support
+
+## Planning your installation
+
+Prior to beginning installation, it's helpful to consider some of the following:
+
+- deployment system (bare metal, Docker)
+- Authentication (PAM, OAuth, etc.)
+- Spawner of singleuser notebook servers (Docker, Batch, etc.)
+- Services (nbgrader, etc.)
+- JupyterHub database (default SQLite; traditional RDBMS such as PostgreSQL,)
+  MySQL, or other databases supported by [SQLAlchemy](https://www.sqlalchemy.org))
+
+## Folders and File Locations
+
+It is recommended to put all of the files used by JupyterHub into standard
+UNIX filesystem locations.
+
+- `/srv/jupyterhub` for all security and runtime files
+- `/etc/jupyterhub` for all configuration files
+- `/var/log` for log files