* Try using WASM for all the client logic (test on editing/creating a recipe)
    * Understand the example here:
        * https://github.com/rustwasm/wasm-bindgen/tree/main/examples/todomvc -> https://rustwasm.github.io/wasm-bindgen/exbuild/todomvc/#/
* 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.
* Add support to language into db model.

[ok] Change all id to i64
[ok] Check cookie lifetime -> Session by default
[ok] Asynchonous email sending and database requests
    [ok] Try to return Result for async routes (and watch what is printed in log)
    [ok] Then try to make async database calls
    [ok] Set email sending as async and show a waiter when sending email. Handle (and test) a timeout (~10s). -> (timeout put to 60s)
[ok] How to log error to journalctl?
[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.