This repository is the open-source iOS client for Kickstarter, a crowdfunding platform. It is a production-grade application built with Swift, UIKit, and SwiftUI, following an MVVM architecture with heavy use of ReactiveSwift and some Combine. The app supports project discovery, pledging, rewards, comments, video feeds, user settings, and authentication. The codebase is well-structured with a dedicated design system (KDS), GraphQL integration via Apollo, extensive snapshot and unit testing, and feature flag experimentation via Statsig. While the code quality is high with many reusable patterns (ValueCell, ShimmerLoading, PaginatingList), there is moderate technical drift due to the coexistence of two reactive frameworks, legacy color references, and some deprecated button styles.
Liberapay is a production web application for recurrent monetary donations, operating as a non-profit platform. It allows donors to set up weekly, monthly, or yearly contributions to creators, teams, and organizations. The architecture is a monolithic Python web application built on the custom Aspen/Pando framework (a fork of Aspen), using PostgreSQL for persistence, Jinja2 for server-side rendering, and a mix of Stripe and PayPal for payment processing. Key entry points include the homepage (`www/index.html.spt`), user profile pages (`www/%username/index.html.spt`), donation management (`www/%username/giving/`), payment flows (`www/%username/giving/pay/stripe/%payin_id.spt`), and admin dashboards (`www/admin/`). Data flows involve user authentication via sessions and OAuth, tip creation and scheduling, payin execution through Stripe/PayPal, weekly payday settlement, and email notifications. External dependencies include Stripe, PayPal, Amazon SES (email), Sentry (error tracking), S3 (file storage), and multiple OAuth providers (GitHub, Twitter, Mastodon, etc.). The codebase is well-structured with reusable modules for payment prospect calculation, encryption, content security policy, currency handling, and OAuth abstraction, though it carries technical debt from a custom framework and aging dependencies.