For someone interested in using SWI-Prolog for web application development, identify the recommended starting point on the website. Then, explain how to generate HTML using the `html//1` predicate and list the main differences between a local SWI-Prolog installation and the online SWISH environment for web development.
Navigate to the SWI-Prolog homepage (https://www.swi-prolog.org/). Click on the 'Get Started' link. Identify the recommended starting point for using SWI-Prolog as a (web) service. Navigate to the 'Web application tutorial' from the 'Getting Started' page. Locate the section explaining `html//1` and its purpose for generating HTML. Return to the 'Getting Started' page. Identify and list the key differences between a local SWI-Prolog installation and the SWISH online version, particularly as they relate to general usage or web development.
State that the recommended starting point for web development is a local installation and the 'Web application tutorial'. Explain that `html//1` is the primary tool for generating HTML in real applications, describing it as a DCG that defines HTML using 'Termerized HTML'. State that SWISH runs on a shared server and enforces a sandbox, preventing dangerous code. State that no state is maintained between queries in SWISH. State that input/output, concurrency, and many other SWI-Prolog features are not or only in a limited way supported in SWISH. State that SWISH provides a nice web-based interface for rich output (HTML, C3.js visualizations).