I'm thinking about building a simple, 100% local desktop app to handle manual data broker optouts without using a cloud SaaS or paying a monthly subscription.

The idea is a local tool that auto-copies your info, opens the target opt-out page in your real browser (avoiding CAPTCHA blocks), tracks your progress, and maybe checks verification emails via local IMAP.

Has anyone built or seen a clean open-source tool that does this? Also, what are the biggest headaches or hidden challenges I should watch out for if I code this?