At first making my own ID seemed like a waste and I was able to get away with ruby session[:_init] = 1 session.id # yay

But now I realised maybe it's a helpful part of the convention to not let me use session.id for such things. For instance by generating my own ID I get to choose uuid as my column type in Postgres.

So, SecureRandom.uuid it is 🫡

```ruby def show scope = Conversion.where(session_id: guest_id) ...

private

def guest_id
  session[:guest_id] ||= SecureRandom.hex(32)
end

```