It’s admirable that you have the knowledge and skill to build your own password manager, but to me that seems like (re)building the Queen Mary when this year’s brand-new Jet Ski will do everything you need it to do. As you’re most definitely the technical type, you really should check out Bitwarden.
AH! Thank you so much! I think this may be an option they’ve added recently. So glad to have that ability now!