Document system requirements for building locally

I cannot find documentation for the requirements for building the project locally.

Is Windows supported at all? After running npm install and trying to use
npm run dev or npm run build:website I am getting a lot of warnings.

The documentation in the readme.md file and on https://wordpress.github.io/wordpress-playground/architecture/host-your-own-playground#build-locally also lists different commands.

Examples:

'sleep' is not recognized as an internal or external command, operable program or batch file.

npm WARN config tmp This setting is no longer used.  npm stores temporary files in a special
npm WARN config location in the cache, and they are managed by
npm WARN config     [`cacache`](http://npm.im/cacache).

Warning: run-commands command "cp packages/playground/client/README.md dist/packages/playground/client" exited with non-zero status code

Warning: run-commands command "cp packages/php-wasm/web/README.md dist/packages/php-wasm/web" exited with non-zero status code

Error: Illegal characters in path.
    at pathArg (D:\wordpress-playground\node_modules\rimraf\dist\cjs\src\path-arg.js:45:33)
    at D:\wordpress-playground\node_modules\rimraf\dist\cjs\src\index.js:40:80
    at Array.map (<anonymous>)
    at D:\wordpress-playground\node_modules\rimraf\dist\cjs\src\index.js:40:42
    at main (D:\wordpress-playground\node_modules\rimraf\dist\cjs\src\bin.js:245:15)
    at Object.<anonymous> (D:\wordpress-playground\node_modules\rimraf\dist\cjs\src\bin.js:255:5)
    at Module._compile (node:internal/modules/cjs/loader:1256:14)
    at Module._extensions..js (node:internal/modules/cjs/loader:1310:10)
    at Module.load (node:internal/modules/cjs/loader:1119:32)
    at Module._load (node:internal/modules/cjs/loader:960:12) {

>  NX   Ran target build for project playground-website and 21 task(s) they depend on (35s)

    ×    5/14 failed
    √    9/14 succeeded [0 read from cache]

Compare the requirements and commands in README.md with the linked host-your-own-playground documentation. Start by checking npm install, npm run dev, and npm run build:website on the supported platforms, including the Windows errors shown here. Done means the documentation states system requirements, Windows support, and one consistent local-build procedure.