Coming from Bubble I am trying to understand the stack Wappler publishes - can you help?

Ok, this may seem like a dumb question, but I am trying to understand some of the basics about Wappler.

So I get that the front end of Wappler is using html, javascript, css, bootstrap etc. But in order to help get my head around Wappler can anyone shed some light on the stack used by Wappler.

So frontend I get, backend I get you can use MYSQL for the db but what is the controller bit?

I see some reference to php and ASP.Net etc. How does wappler connect to the databases and run the queries etc?

For example is it something like?

• html, javascript, css
• Php, ASP .NET
• Mysql etc.

Hope this makes sense?

Many thanks!