Custom index.html not considered in desktop mode

Adding a custom index.html does not work when distributing as a desktop app even though it works in web mode. Please check the steps to reproduce here: https://github.com/DioxusLabs/dioxus/issues/5480#issuecomment-4284005454

**Original message:**
Hello, I know it's possible to have a custom index.html but I cannot get it in any way.
It has been mentioned here: https://github.com/DioxusLabs/dioxus/issues/1883#issuecomment-1919228221 but the link is dead and it states it's not documented.
Can you please show all the elements that need to be present in order for the index.html to be taken into account?
I tried having it in the root (where Cargo.toml is), in the assets, in the src, nothing seems to work