I would suggest:

1. Use any debian 12 iso
2. When you get to the stage where you get to choose what to install (it’s called tasksel and looks like : untick whatever desktop environment is selected. You’ll get a bare minimal install with no graphics server
3. Reboot into the installed system, and install whatever you want from there.

Honestly, you don’t need any app. I’m using Firefox on mobile and it’s way better than the app I tried.