J's starred repositories
system-design-primer
Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.
activepieces
Your friendliest open source all-in-one automation tool ✨ Workflow automation tool 100+ integration / Enterprise automation tool / Zapier Alternative
open-source-flutter-apps
:iphone: List of open source Flutter applications :octocat:
counterscale
Scalable web analytics you run yourself on Cloudflare
scaffold-eth-challenges
Scaffold-Eth 🏗 Challenges repository
mev-templates
MEV bot templates written in Python/Javascript/Rust. All implementing DEX flashloan arbitrage
template-web3-app
⚡️ Web3 App Template built using Next.js, RainbowKit, SIWE, Disco, and more!
solidity-riddles
A collection of Solidity security exercises and puzzles to test your knowledge of Solidity's more esoteric features. Some are easy, and some are exceptionally challenging.
wyvern-ethereum
Project Wyvern Ethereum Smart Contracts
nexchange-open-client-react
n.exchange is the planet's simplest and most transparent solution for cryptocurrency trading & liquidity for individuals and enterprises alike. it supports all major cryptocurrencies(BTC BCH BSV ETH LTC NANO XLM XMR XRP ZEC) and fiat currencies(USD GBP EUR JPY). Learn how to deploy this great open-source project here: https://www.youtube.com/watch?v=7ujmzb3HzCA
delegatable-sol
Counterfactual revocable-delegation
delegatable-eth
A solidity framework for extending any contract with counterfactual revocable-delegation. https://roamresearch.com/#/app/capabul/page/cnW_23H8w
monero-lws
Monero Light Wallet Server (scans monero viewkeys and implements mymonero API)
stemPlayerOnline
An online stem player. Inspired by but not affiliated with YEEZY TECH X KANO Stem Player.
swap-bridge
Contracts for publishing and verifying cross-chain swap messages using Wormhole message passing and token bridge
sidechain-oracles
Uniswap V3 Pool's price history for every chain, not depending on available liquidity
mistswap-interface
An open source interface for MistSwap
telos-bridge
The Telos LayerZero bridge enables seamless asset transfers between Telos and other blockchains
fairypieces-engine
a simulation and verification engine for chess-like games
registry.prove.email
A repository to store historical, timestamped DKIM keys; and for anyone to upload their own. Basically https://archive.org for public key registries.
dapp-inter
User application for Agoric Inter Protocol—Vaults, BLD Boost, Liquidations, etc.