OpenStock is an open-source alternative to expensive market platforms. Track real-time prices, set personalized alerts, and explore detailed company insights — built openly, for everyone, forever free.
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A 100% free modern JS SaaS boilerplate (React, NodeJS, Prisma). Full-featured: Auth (email, google, github, slack, MS), Email sending, Background jobs, Landing page, Payments (Stripe, Polar.sh), Shadcn UI, S3 file upload. AI-ready with tailored AGENTS.md, skills, and Claude Code plugin. One cmd deploy. Powered by Wasp full-stack framework.
- full-stack
- open-source
- saas
- nodejs
QuestPDF is a modern library for PDF document generation. Its fluent C# API lets you design complex layouts with clean, readable code. Create documents using a flexible, component-based approach.
- nuget
- c-sharp
- dotnet-core
:credit_card: make your credit card form better in one line of code
A self-hosted open source application for managing your invoices, clients and payments.
- php
- invoices
- invoicing
- open-source
SHKeeper is a self-hosted and open-source cryptocurrency gateway payment processor. It's integrate with popular CMS, any e-commerce, your own code or product
- accept-crypto
- accept-crypto-payments
- crypto
- crypto-gateway
A collection of higher-level reusable cdk constructs
Countries - ISO-639, ISO-3166 countries codes with subdivisions and names, ISO-4217 currency designators, ITU-T E.164 IDD phone codes, countries capitals, UN M.49 codes, IANA ccTLD countries domains, FIPS, IOC/NOC and FIFA codes, VERY VERY FAST, compatible with Databases/JSON/BSON/GOB/XML/CSV, Emoji countries flags and currencies, Unicode CLDR.
- go
- iso
- iso3166
- iso3166-1
👉↕️📱ContainerController 🧩✨⚙️ is a UI Component Swipe-Panel (Customizable). 💡 The idea is copied from the app: Apple Maps, Stocks. Swift version
- containercontroller
- ios
- swift
- swipe-panel
"make your credit card form dreamy in one line of code"
- ember-addon
- ember
- credit-card
- ember-cli
QR code generator (ASCII & PNG) for SEPA payments
Code repository for The Automation Ahead series, showcasing practical examples for GenAI-driven automation in investments. Each installment dives into specific tools, techniques, and use cases to help professionals assess and apply GenAI effectively.
- data-science
- deep-learning
- finance
- financial-data
Flare is a lightweight, developer-friendly Swift framework that simplifies working with in-app purchases. It provides a clean, unified API over StoreKit and StoreKit 2, includes async/await-ready workflows, and offers built-in UI components for a seamless integration experience.
- iap
- in-app-purchases
- macos
- swift
A lightweight solution for handling and storing money.
💸 Papers and Code Implements for Quantitative-Trading
Algorand QR Code generator is a JavaScript module that outputs an standard QR code (exportable to SVG file and text) from a JSON object. It works in terminal, NodeJS and modern browsers. Complies to Algorand ABNF Grammar.
🧭 Let your coding agent off the leash — not off the rails. Guardrails, a hard budget cap & a self-fixing PR loop for Claude Code / Codex / Gemini. Eval-gated 100/100, you always merge.
Decentralized agent memory for the Lightning economy. Nostr identity, L402 payments, MCP server.
Universal indie sales tracker for LemonSqueezy, Gumroad, and Stripe. iOS + macOS. 100% on-device privacy.
- gumroad
- indie-hacker
- ios
- lemonsqueezy