MeetingTab shows what a meeting is actually costing, live — based on real attendee salaries. Add people, hit start, watch the cost climb, get a shareable receipt. Web app + Chrome extension, multi-currency support. Not just shipped and forgotten: I ran full QA cycles, found and fixed a silent bug, a state regression, and a security XSS vulnerability — full defect history public on GitHub. Try it, break it, tell me what's missing.