Best way to store and change hardcoded param

[skosito]

Hey,

If for example I have some param that should be "hardcoded" but also subject to change (for example some constant, some predefined address etc), what is the best way to achieve this in terms of best practices?

Maybe storing it in code, and any change in code would need to go through upgrade anyways, or there is something better, utilizing some singleton like keeper or something?

Or using params module combined with governance proposals to update parameters? https://docs.cosmos.network/v0.44/modules/params/
Is there some example of this?

Thanks in advance