Connecting 2 metabase instances to the same metabase database

I have 2 Metabase instances on docker one is dev and the other is prod,
and I'm connecting both to the same metabase database, I'm doing this because I don't want to work on the prod instance since a lot of users access it on daily basis.

So I was wondering is this approach good or risky? so far it's working fine with me.

it's very risky as any change you do in a certain instance is then replicated to the second one. Metabase believes that these 2 instances belong to the same cluster, so they both act as if they were the same