Approval voting has a special place in my heart because it is such an easy transition from first-past-the-post (what the U.S. uses). You literally just change the ballot from “select the candidate you like” to select the candidates (plural) you like" and you’re done, and it’s such a significant upgrade from FPTP.
Questionable privacy/security practices: https://www.theverge.com/2022/11/30/23486753/anker-eufy-security-camera-cloud-private-encryption-authentication-storage