Add "create project" docs for cookieplone

docs/_inc/_hardware-requirements.md

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+The hardware requirements below give a rough estimate of the minimum hardware setup needed for a Plone server.
+
+A single Plone installation is able to run many Plone sites.
+
+-   Installation of the Plone backend and Classic UI frontend requires a minimum of 256 MB of RAM and 2GB of disk swap space.
+-   Installation of the Volto frontend requires a minimum of 2GB of RAM.
+-   After installation, running Plone requires a minimum of 256 MB RAM and 512 MB of disk swap space per Plone site.
+    2 GB or more RAM per Plone site is recommended.
+-   Minimum 512 MB hard disk space is required.
+    40 GB or more hard disk space is recommended.
+
+
+````{warning}
+{term}`Add-on` products and caching solutions may also increase RAM and disk swap space requirements.
+To avoid RAM and disk swap limitations, we recommend either temporarily resizing your remote machine to accommodate the build, or build your images locally and upload them to an image store, such as [Docker Hub](https://hub.docker.com/) or [GitHub Packages](https://github.com/features/packages).
+```{seealso}
+[How much RAM is required to build a Volto front end?](https://community.plone.org/t/how-much-ram-is-required-to-build-a-volto-front-end/17949) and [Dealing with heap exhaustion while building Volto 17 on limited-RAM host](https://community.plone.org/t/dealing-with-heap-exhaustion-while-building-volto-17-on-limited-ram-host/18078).
+```
+````

docs/_inc/_install-python.md

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+Installing Python is beyond the scope of this documentation.
+However, it is recommended to use a Python version manager, {term}`pyenv`, that allows you to install multiple versions of Python on your development environment without destroying your system's Python.
+% TODO: uncomment this line after upgrading to plone-sphinx-theme and latest Sphinx which supports replacements inside includes.
+% Plone requires Python version {SUPPORTED_PYTHON_VERSIONS}.
+
+Plone requires Python version 3.8, 3.9, 3.10, 3.11, or 3.12.

docs/install/create-project-classic-ui.md

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+---
+myst:
+  html_meta:
+    "description": "Create a Plone project with Classic UI (stable release)"
+    "property=og:description": "Create a Plone project with Classic UI (stable release)"
+    "property=og:title": "Create a Plone project with Classic UI (stable release)"
+    "keywords": "Plone, Plone 6, Classic UI, create, project, install, cookiecutter"
+---
+
+
+(create-a-project-classic-ui-label)=
+
+# Create a project with Classic UI (stable release)
+
+This chapter describes how you can create a web application using the current **stable release** version of Plone with **Classic UI** for the frontend, while having full control over its development and deployment.
+
+```{seealso}
+For other installation options, see {doc}`/install/index`.
+```
+
+
+## System requirements
+
+Plone 6 has both hardware requirements and software pre-requisites.
+
+
+### Hardware requirements
+
+```{include} /_inc/_hardware-requirements.md
+```
+
+### Pre-requisites for installation
+
+```{include} ../volto/contributing/install-operating-system.md
+```
+
+-   Python {SUPPORTED_PYTHON_VERSIONS}
+-   {term}`pipx`
+-   {term}`GNU make`
+-   {term}`Git`
+
+
+#### Python
+
+```{include} /_inc/_install-python.md
+```
+
+
+#### pipx
+
+Install {term}`pipx`.
+
+```shell
+pip install pipx
+```
+
+
+#### Make
+
+```{include} ../volto/contributing/install-make.md
+```
+
+
+#### Git
+
+```{include} ../volto/contributing/install-git.md
+```
+
+
+## Generate the project
+
+After satisfying the pre-requisites, generate the project.
+
+```shell
+pipx run cookieplone backend_addon
+```
+
+You will be presented with a series of prompts.
+You can accept the default values in square brackets (`[default-option]`) by hitting the {kbd}`Enter` key, or enter your preferred values.
+For ease of documentation, we will use the default values.
+
+```{tip}
+See the cookiecutter's README for how to [Use options to avoid prompts](https://github.com/collective/cookiecutter-plone-starter/?tab=readme-ov-file#use-options-to-avoid-prompts).
+```
+
+```{important}
+For {guilabel}`Project Slug`, you must not use any of the Plone core package names listed in [`constraints.txt`](https://dist.plone.org/release/6.0-latest/constraints.txt).
+Note that pip normalizes these names, so `plone.volto` and `plone-volto` are the same package.
+```
+
+```console
+% pipx run cookieplone backend_addon
+╭─────────────────────────────────── cookieplone ────────────────────────────────────╮
+│                                                                                    │
+│                                  .xxxxxxxxxxxxxx.                                  │
+│                              ;xxxxxxxxxxxxxxxxxxxxxx;                              │
+│                           ;xxxxxxxxxxxxxxxxxxxxxxxxxxxx;                           │
+│                         xxxxxxxxxx              xxxxxxxxxx                         │
+│                       xxxxxxxx.                    .xxxxxxxx                       │
+│                      xxxxxxx      xxxxxxx:            xxxxxxx                      │
+│                    :xxxxxx       xxxxxxxxxx             xxxxxx:                    │
+│                   :xxxxx+       xxxxxxxxxxx              +xxxxx:                   │
+│                  .xxxxx.        :xxxxxxxxxx               .xxxxx.                  │
+│                  xxxxx+          ;xxxxxxxx                 +xxxxx                  │
+│                  xxxxx              +xx.                    xxxxx.                 │
+│                 xxxxx:                      .xxxxxxxx       :xxxxx                 │
+│                 xxxxx                      .xxxxxxxxxx       xxxxx                 │
+│                 xxxxx                      xxxxxxxxxxx       xxxxx                 │
+│                 xxxxx                      .xxxxxxxxxx       xxxxx                 │
+│                 xxxxx:                      .xxxxxxxx       :xxxxx                 │
+│                 .xxxxx              ;xx.       ...          xxxxx.                 │
+│                  xxxxx+          :xxxxxxxx                 +xxxxx                  │
+│                  .xxxxx.        :xxxxxxxxxx               .xxxxx.                  │
+│                   :xxxxx+       xxxxxxxxxxx              ;xxxxx:                   │
+│                    :xxxxxx       xxxxxxxxxx             xxxxxx:                    │
+│                      xxxxxxx      xxxxxxx;            xxxxxxx                      │
+│                       xxxxxxxx.                    .xxxxxxxx                       │
+│                         xxxxxxxxxx              xxxxxxxxxx                         │
+│                           ;xxxxxxxxxxxxxxxxxxxxxxxxxxxx+                           │
+│                              ;xxxxxxxxxxxxxxxxxxxxxx;                              │
+│                                  .xxxxxxxxxxxxxx.                                  │
+│                                                                                    │
+╰────────────────────────────────────────────────────────────────────────────────────╯
+╭─────────────────────────────────── Plone Addon ────────────────────────────────────╮
+│ Creating a new Plone Addon                                                         │
+╰────────────────────────────────────────────────────────────────────────────────────╯
+  [1/7] Addon Title (Addon): 
+  [2/7] A short description of your addon (A new addon for Plone): 
+  [3/7] Author (Plone Community): 
+  [4/7] Author E-mail ([email protected]): 
+  [5/7] GitHub Username or Organization (collective): 
+  [6/7] Python package name (collective.addon): 
+  [7/7] Support headless Plone?
+    1 - Yes
+    2 - No
+    Choose from [1/2] (1): 
+ -> Initialize Git repository
+╭───────────────────────────── New addon was generated ──────────────────────────────╮
+│                                                                                    │
+│ Addon                                                                              │
+│                                                                                    │
+│ Now, enter the repository run the code formatter with:                             │
+│                                                                                    │
+│ make format                                                                        │
+│                                                                                    │
+│ start coding, and push to your organization.                                       │
+│                                                                                    │
+│ Sorry for the convenience,                                                         │
+│ The Plone Community.                                                               │
+│                                                                                    │
+│ https://plone.org/                                                                 │
+╰────────────────────────────────────────────────────────────────────────────────────╯
+```
+
+
+## Install the project
+
+Change to your project directory.
+
+```shell
+cd collective.addon
+```
+
+To install the project's dependencies, use the following command.
+
+```shell
+make install
+```
+
+This will take a few minutes.
+When the process completes successfully, it will exit with no message.
+
+
+## Start Plone
+
+To start Plone, issue the following command.
+
+```shell
+make start
+```
+
+The Plone backend server starts up and emits messages to the console.
+
+```console
+2024-09-25 16:47:15,699 INFO    [chameleon.config:39][MainThread] directory cache: /<path-to-project>/instance/var/cache.
+2024-09-25 16:47:16,387 WARNING [ZODB.FileStorage:412][MainThread] Ignoring index for /<path-to-project>/instance/var/filestorage/Data.fs
+2024-09-25 16:47:16,508 INFO    [plone.restapi.patches:16][MainThread] PATCH: Disabled ZPublisher.HTTPRequest.ZopeFieldStorage.VALUE_LIMIT. This enables file uploads larger than 1MB.
+2024-09-25 16:47:17,018 INFO    [plone.volto:23][MainThread] Aliasing collective.folderish classes to plone.volto classes.
+2024-09-25 16:47:17,760 INFO    [Zope:42][MainThread] Ready to handle requests
+Starting server in PID 20912.
+2024-09-25 16:47:17,772 INFO    [waitress:486][MainThread] Serving on http://[::1]:8080
+2024-09-25 16:47:17,772 INFO    [waitress:486][MainThread] Serving on http://127.0.0.1:8080
+```
+
+You can stop the site with {kbd}`ctrl-c`.
+
+
+## Create Classic UI Plone site
+
+While the Plone backend server is running, open a browser and visit the following URL.
+
+http://localhost:8080
+
+```{image} /_static/plone-classic-ui-landing-page.png
+:class: figure
+:alt: Plone Classic UI landing page
+```
+
+Click the button {guilabel}`Create Classic UI Plone site` to do exactly that.
+
+Use the username and password of `admin` to authenticate.
+You will be redirected to the Create a Plone site page.
+
+```{image} /_static/plone-classic-ui-site-page.png
+:class: figure
+:alt: Plone Classic UI site page
+```
+
+Enter values for {guilabel}`Path identifier`, {guilabel}`Title`, {guilabel}`Language`, and {guilabel}`Default timezone`.
+The default values are usually good.
+
+Click the button {guilabel}`Create Plone site`.
+
+You will be redirected to the Plone site you just created.