Move system requirements around

Author: stevepiercy

docs/install/containers/index.md

@@ -6,6 +6,8 @@ html_meta:
   "keywords": "Plone 6, install, installation, Docker, containers"
 ---
 
+(install-containers-label)=
+
 # Containers
 
 Using containers is the easiest way to try out and deploy Plone 6.
@@ -28,6 +30,16 @@ examples/index
 Although there are many container engine tools for developing, managing, and running containers, we will use {term}`Docker` in this documentation.
 ```
 
+
+(install-containers-index-system-requirements-label)=
+
+### System Requirements
+
+```{todo}
+Add System Requirements
+```
+
+
 ### Install Docker
 
 Install [Docker](https://docs.docker.com/get-docker/) for your operating system.

docs/install/index.md

@@ -22,30 +22,9 @@ What do you want to do?
 -   [Install Plone from source](source) (Why? To develop Plone add-ons or contribute to Plone packages, and more details.)
 
 
-(install-index-system-requirements-label)=
-
-## System Requirements
-
-To install Plone 6, you must satisfy system requirements.
-
-```{todo}
-Add any missing requirements, including disk space.
-```
-
--   2GB if using a container image, 4GB RAM if installing manually.
--   Disk space (TBD).
--   Either a UNIX-like operating system—such as Linux, Ubuntu, macOS—or Windows.
-    For Windows, it is a good idea to use [Windows Subsystem for Linux (WSL)](https://docs.microsoft.com/en-us/windows/wsl/).
-    We strongly recommend using a recent version of your operating system released within the last 3 years.
-    Older systems might not be supported.
--   Python 3.7, 3.8, or 3.9.
-
-Additional requirements might be needed depending on your choice of installation method.
-
-
 (install-index-choose-installation-method-label)=
 
-### Choose an installation method
+## Choose an installation method
 
 Developers may choose to install Plone from either [the official container images](containers/index) or [source](source).
 
@@ -71,6 +50,16 @@ Perhaps merge the subsequent section into this section?
 ## Caveat that Plone is a large project and source installs are non-trivial
 
 
+(install-index-system-requirements-label)=
+
+## System Requirements
+
+System requirements depend upon your choice of installation method:
+
+-   [Use container images](containers/index)
+-   [Install from source](source)
+
+
 ```{toctree}
 :maxdepth: 2
 :hidden: true

docs/install/source.md

@@ -18,6 +18,26 @@ As an overview, you will perform the following steps in order.
 1.  Install the Plone frontend (Volto) with node.
 
 
+(install-source-system-requirements-label)=
+
+## System requirements
+
+To install Plone 6, you must satisfy system requirements.
+
+```{todo}
+Add any missing requirements, including disk space.
+```
+
+-   2GB if using a container image, 4GB RAM if installing manually.
+-   Disk space (TBD).
+-   Either a UNIX-like operating system—such as Linux, Ubuntu, macOS—or Windows.
+    For Windows, it is a good idea to use [Windows Subsystem for Linux (WSL)](https://docs.microsoft.com/en-us/windows/wsl/).
+    We strongly recommend using a recent version of your operating system released within the last 3 years.
+    Older systems might not be supported.
+-   Python 3.7, 3.8, or 3.9.
+-   [Other?]
+
+
 (install-source-2-label)=
 
 ## Backend source / frontend source explanation