* Asynchonous email sending and database requests
* Try using WASM for all the client logic (test on signup page)
* Describe the use cases.
* Define the UI (mockups).
    * Two CSS: one for desktop and one for mobile
* Define the logic behind each page and action.

[ok] Sign out
[ok] Read all the askama doc and see if the current approach is good
[ok] Handle 404
[ok] Enable Logging to file.
[ok] Implement the model as relational with SQLite.
    [ok] Create and update functions.