[machinelabo]

Can you please explain how to build a "larger" app with HTMX?

The way I understand htmx, it will replace the tag itself with an ajax response from the server. This is great for submit feedback and flash messages.

What if you want to click a htmx-button and replace something else outside of the tag with htmx?

[recursivedoubts]

You can use the hx-target to target other elements in the DOM:

https://htmx.org/attributes/hx-target/

You can also use Out of Band swaps to replace arbitrary DOM content:

https://htmx.org/docs/#oob_swaps