If you ever want to "mass issue" boltcards this plugin is a game changer, you can set up cards quickly and add funds in one step. But you can also use it to load up your personal and family boltcards so they can pay their LN invoices with a credit card like experience.
BoltCards plugin allows you to issue Bitcoin debit cards for your customers. A customer can not only then use it to pay at BTCPay enabled (and others that support it) terminals, but also they can manage their balance, reset and repurpose cards. This is one of the biggest innovations in Bitcoin payments, and it's been stress tested at multiple events. For example in Riga https://blog.btcpayserver.org/case-study-bhb24-nostriga/