Flight Finder is a self-hosted tracker that watches flight, hotel, and car rental prices for you and alerts you when a fare you care about drops. Search in plain language, such as NYC to Tokyo next month under a set budget, and the app turns that request into tracked routes with flexible date ranges. Price evolution charts show how fares move over days and weeks, so you can see whether a price is genuinely cheap or just pretending. Click any point on a chart to jump straight to the airline booking page, or share the chart through a public link that needs no login. Compare carriers side by side to spot which airlines are softening prices and which are climbing. Test whether browsing from another country changes the quote with the optional VPN comparison. Track hotels by dates, rooms, and guests, follow a specific room rate or the cheapest qualifying offer, and set a target price that triggers a notification. Do the same for car rentals, comparing verified totals before you commit. Alerts arrive through Telegram, email, ntfy, webhooks, Pushover, or WhatsApp, with rules for target prices and percentage drops. Households can share one instance while each person keeps separate trackers and administrators manage assignments. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. MIT licensed.