expand the prerequisites

book/01-setup/00-prereqs.md

@@ -5,17 +5,38 @@ authors:
   - name: Dimitri Yatsenko
 ---
 
-To be able to work with MySQL databases using DataJoint for Python, you need the following
+Coding examples in this book require the following components:
 
 - [ ] A MySQL server
 - [ ] MySQL user name and password
 - [ ] MySQL user privileges to create and drop schemas and tables, insert/update/delete data from tables.
 - [ ] Python programming language
 - [ ] Integrated Developer Environment (e.g. VSCode or PyCharm) and/or [Jupyter](https://jupyter.org)
 - [ ] The DataJoint Python client library
-	- [PyPi](https://pypi.org/project/datajoint/)
-	- [Conda Forge](https://anaconda.org/conda-forge/datajoint)
+- [ ] Object storage for large data objects (e.g. Minio or Ceph).
+- [ ] IPython SQL magic 
 
-All of these prerequisites are met by the DevContainer provided with this book. 
+# Using DevContainer
+If you are using the DevContainer for this textbook, you are all set. All these required components are already configured.
+This will not allow you to run a sizeable project but will be sufficient for the tutorial exercises.
 
+# on DataJoint Works
 For real projects, you can go to https://datajoint.com to request a comprehensive digital environment for implementing and operating collaborative data pipelines, either in the cloud or in local infrastructure. 
+
+DataJoint Works provides an integrated research environment that combines:
+* code management
+* user access management
+* database operations
+* automated computations
+* electronic lab notebooks
+* data navigation and exploration 
+* performance monitoring and optimization
+* backups and recovery
+* data export and publishing
+
+The platform comes with technical support to address any issues with the setup and configuration.
+
+# Do-It-Yourself 
+If you must set up a DataJoint pipeline using your own engineering resources and infrastructure, you can definitely do it!
+The tools are published in open source.
+This requires substantial skills in systems administration and database administration to set up all operations.