Self hosting a password manager is great, but be sure to read up on keeping it secure, and don’t store anything important in it until you have working, tested backup solution. And re-test it frequently in a non-destructive way.
If you lose your password storage to a disk failure or something, you’re gonna be hurting for a while.
Yes, it could, which is why (IIRC) 16 US states now have laws that partially or fully ban ranked choice voting.