add Announcement, something like Five ways to host your C++ program online

Web service using Common Gateway Interface
Python web service using Swagger/OpenAPI
Python web application using Flask
JavaScript web service using Emscriptem and WebAssembly
JavaScript web application with React

Consider adding a line that helps people decide which section to focus on.

Example algorithm

Introduce the example algorithm, as a CLI.

delay introducing the interface if possible
one file: algorithm and main
Adapt to reading initial guess and tolerance from stdin, e.g. with argc and argv

Web service using Common Gateway Interface

Pros	Cons
❤️ pro1	⛔ con1
❤️ pro2	⛔ con2

Explain that there is no longer command line args, we need to change to JSON
Explain what is JSON
move JSON schema to swagger section or even to JavaScript form generation
JSON flavor of JSON schema can be removed (we still have the OpenAPI YAML)

Python web service

pybind11
OpenApi, Swagger, JSON schema

Python web application

web app v web service difference
explanation of what is a web framework using @route decorator
long running tasks, celery

JavaScript web service

OK to test with curl not browser?

JavaScript web application

how to use wasm in webbrowser
long running with web worker
react, explain react/vue/angular here
json schema form
vega plot

random tidbits:
- web framework
- long running tasks (concept, Python toolset, JavaScript toolset): consider splitting off into 1 or 2 separate documents; in the main document describe a what is basically a Promise and point to the relevant other document
single page application
Optional add pros and cons per section