Personalized Social Feed Platform

I’m ready to commission a full-stack solution—a public-facing website plus companion mobile app—that curates a personalised feed for every user and keeps itself fresh by automatically pulling in the latest text, image and video posts from our connected social media accounts.

Key functions I need in place:

• Dual sign-in: visitors must be able to register or log in with either standard email/password credentials or their preferred social account (Google, Facebook, Apple, etc.).
• Smart feed: once authenticated, each user sees an aggregated timeline populated in real time with our newest social content. The system should handle both text updates and rich media and rank them per user preferences.
• Donations with maximum flexibility: the platform must accept credit/debit cards, PayPal and popular cryptocurrencies out of the box, route funds securely to our wallet, and display a success confirmation without refreshing the page.
• Built-in shop: through an admin dashboard I can upload merchandise or service listings, set prices, track inventory, and have the app automatically issue invoices/receipts when customers check out. Payouts to us should be automatic.
• One-click follow/subscribe buttons so visitors can follow our social profiles directly from within the site or app.
• All the usual polish—search, notifications, profile settings, responsive design, basic analytics and GDPR-friendly privacy controls.

Deliverables I expect:
1. Production-ready website (desktop and mobile responsive).
2. iOS and Android builds, delivered to their respective stores.
3. Admin panel with role-based access.
4. Source code, build instructions and a short hand-off session so my team can manage content later.

Please base the stack on proven tools—React, Flutter, Node, Laravel, Firebase, Stripe, PayPal SDKs or equivalents—so maintenance stays straightforward, but I’m open to suggestions if you have a better architecture in mind.