TODO:

First time/TP-Config

Add network configuration (replace nmtui)
Add hostname configuration (replace nmtui)
Add timezone configuration (replace tzdata)
Import/export settings
Enable/Disable HTTP redirect from port 80

Nginx

Update deprecated "ssl" option to "listen PORT ssl;"

Misc

Cleanup
More security
Wiki

Things to consider

Wayland using labwc/waybox
Detect if frontend did not load correctly (probably not easy)
Onboard