# llms.txt for https://www.paulsimroth.at

ai-access: allow
ai-use: summary, indexing, citation
training-permission: allowed-with-credit

created-by: Paul Simroth
owner: Paul Simroth
contact: mail@simroth.at
data-source: https://www.paulsimroth.at/

author-summary: Paul Simroth is a full-stack web developer specializing in smart contracts, design systems, and developer education. He writes deeply technical content and publishes practical projects on emerging technologies.
site-description: Technical blog and portfolio focused on Web3, smart contracts, and full-stack engineering.

language: en
content-type: blog, portfolio, dev projects
updated: 2025-09-16
preferred-credit-format: "Paul Simroth - https://www.paulsimroth.at"

disallowed-paths: /imprint, /datapolicy, /terms-of-service, /studio

- [Paul Simroth - Developer](https://www.paulsimroth.at/): Full stack developer specializing in blockchain and Web3 technologies. Main landing page with general info and links to other pages

## About page
- [About Paul Simroth](https://www.paulsimroth.at/about): A developer blending history and technology for impactful solutions. 
skills: 
- Smart Contracts
    Description: I have in-depth experience in designing, deploying, and auditing smart contracts. My expertise spans Ethereum-based DeFi protocols, DAOs, and NFT standards, with a strong focus on security, efficiency, and best practices. My work involves leveraging oracles, interoperability solutions, and governance models to create robust blockchain applications.
    Related Tools: Ethereum, Security, Token Standards, Chainlink, DeFi, Auditing, Interoperability, Crypto Knight, Foundry Fund Me, Foundry Lottery, Foundry DeFi Protocol, DAO Example, Web3 Market, ETH Game

- Solidity
    Description: I have a strong command of Solidity, enabling me to build and optimize Ethereum-based applications. My experience includes developing secure token contracts (ERC20, ERC721, ERC1155), implementing complex business logic in smart contracts, and ensuring high performance through gas-efficient coding techniques.
    Related Tools: Smart Contracts, Blockchain Dev, Ethereum, ERC20, ERC721, ERC1155, Web3, Crypto Knight, DAO Example, Web3 Market, ETH Domain Website, Real Estate Contract, Ethereum Game, Metaverse, Ethereum DEX, Multi Signature Wallet

- HardHat
    Description: Hardhat is an essential tool in my development workflow for compiling, testing, and deploying smart contracts. I utilize its network forking, automated testing, and plugin ecosystem to streamline Ethereum-based development while ensuring security and efficiency.
    Related Tools: Smart Contract Development, Testing, Deployment, Ethereum, EVM, Ethereum, Development, Web3 DApps, Smart Contract Development, Smart Contract Testing, Blockchain

- Foundry
    Description: Foundry has become my preferred tool for smart contract development, known for its speed, powerful fuzz testing, and Solidity scripting capabilities. I use it extensively for high-performance testing, automated deployments, and secure blockchain integrations.
    Related Tools: Smart Contract Development, Testing, Deployment, Automation, EVM, Research, Ethereum, Development, Web3 Usecases, Blockchain for Enterprise, Smart Contract Testing, Smart Contract Auditing

- Blockchain
    Description: My expertise covers blockchain fundamentals, decentralized applications, and emerging trends in Web3. I work with on-chain governance, DeFi mechanisms, and enterprise blockchain solutions, helping to drive innovation and adoption.
    Related Tools: DApps, DeFi, FinTech, Enterprise Solutions, Tokenomics, Governance, Blockchain, Business use cases, Decentralized Finance, FinTech, Development Processes

- TypeScript
    Description: TypeScript enhances my development process by improving code maintainability, safety, and scalability. I use it for building secure DApp frontends, integrating blockchain APIs, and writing automated tests for smart contracts.
    Related Tools: Frontend Development, Smart Contract Testing, Web3 Integration, API Development, AI Chat, DAO Example, Portfolio Website, Smart Contract Testing, Next.Js, Frontend Development

- JavaScript
    Description: With JavaScript, I build responsive and interactive Web3 applications. My expertise includes frontend development, blockchain integrations, and working with libraries like ethers.js and web3.js to connect smart contracts with user interfaces.
    Related Tools: Frontend Development, DApps, Web3 Integration, Blockchain Dev, Web3 Market, ETH Domain Website, Metaverse Landing Page, Ethereum Game, ReactJs Coin Exchange, DEX Frontend, Ethereum DEX

- Next.Js
    Description: Next.js enables me to develop high-performance, SEO-optimized applications with server-side rendering and static site generation. I use it to build scalable DApps with efficient state management and Web3 integrations.
    Related Tools: Frontend Development, Server-Side Rendering, Static Site Generation, API Routes, Crypto Knight, Metaverse Landing Page, AI Chat, Portfolio Website

- React
    Description: React is my framework of choice for developing dynamic and modular DApps. I utilize its component-based architecture, hooks, and state management libraries to build seamless user experiences for blockchain applications.
    Related Tools: Frontend Development, Component-Based Architecture, State Management, Hooks, Web3 Market, ETH Domain Website, ReactJs Coin Exchange

- SQL
    Description: I have experience designing and managing relational databases using SQL. My skills include optimizing queries, structuring data models, and ensuring efficient data retrieval for various applications, including Web3 analytics and off-chain data storage.
    Related Tools: Database Management, Query Optimization, Data Modeling, Relational Databases, Prisma ORM, Drizzle ORM

## Certifications
- [Blockchain Certifications](https://www.paulsimroth.at/certificates): Explore certifications in Web3, blockchain, and software development.

- Crypto for Beginners - Moralis Academy
    Date: 2021-08-03
    Skills: Bitcoin Basics, Trading Bitcoin, Leverage Tarding, Buying Bitcoin, Altcoin Basics, Trading Platforms, Storing Bitcoin, Trading Altcoins, Identifiying Scams
    Link: https://academy.moralis.io/

- Blockchain & Bitcoin 101 - Moralis Academy
    Date: 2021-08-10
    Skills: Blockchain Basics, Bitcoin Basics, Consensus Algorithms, Bitcoin Mining, UTXO Model, Segwit, Forks, Cryptography
    Link: https://academy.moralis.io/

- Ethereum 101 - Moralis Academy
    Date: 2021-08-16
    Skills: Ethereum Basics, Ethereum EVM, Ethereum Consensus, Account Model, Token Standards, Smart Contracts, Decentralized Applications (DApps)
    Link: https://academy.moralis.io/

- JavaScipt Programming for Blockchain Developers - Moralis Academy
    Date: 2021-10-15
    Skills: Progarmming Mindest, JavaScript Basics, Web Development, JavaScript Types, JavaScript Loops, JavaScript Data Structures, JavaScript Functions, NodeJs Basics
    Link: https://academy.moralis.io/

- Ethereum Smart Contract Programming 101 - Moralis Academy
    Date: 2021-11-08
    Skills: Solidity Basics, Arrays & Structs, Mappings, Data Location, Error Handling, Inheritance, Visibility, Events, External Calls
    Link: https://academy.moralis.io/

- FinTech 101 - Moralis Academy
    Date: 2021-11-17
    Skills: Fintech Evolution, Six Pillars of Finance, Computing in Banks, KYC, KYT, KYD, Open Banking, Embedded Finance, Fintech Regulations, Banking API Aggregators
    Link: https://academy.moralis.io/

- Ethereum Smart Contract Programming 201 - Moralis Academy
    Date: 2022-02-09
    Skills: Truffle Development, Truffle Unit Tests, MetaMask Integration, Truffle Migrations, Ethereum Oracles, Testnet Development, Ethereum DApps
    Link: https://academy.moralis.io/

- Ethereum Smart Contract Security - Moralis Academy
    Date: 2022-04-14
    Skills: DAO Hack Replication, Parity Hack Replication, Hyperinfaltion Bug, Developer Mindset, Solidity Best Practices, Contract Desing, Upgradeable Contracts, Proxy Contracts, Pausable Contracts
    Link: https://academy.moralis.io/

- Chainlink Programming 101 - Moralis Academy
    Date: 2022-03-29
    Skills: Oracles, Smart Contract Programming, Chainlink Node, Oracle Testing, Verifiable Randomness
    Link: https://academy.moralis.io/

- React Web Development 101 - Moralis Academy
    Date: 2022-06-14
    Skills: Creating React Apps, API Communication, Development Environment for React, Advanced Functional Components, Class-Based Components
    Link: https://academy.moralis.io/

- DeFi 101 - Moralis Academy
    Date: 2022-07-01
    Skills: DApps, Decentralized Money Market, MetaMask, DEXs, DeFi Risk Analysis, DeFi Financial Stack, Stablecoins, DeFi Account Security
    Link: https://academy.moralis.io/

- DeFi 201 - Moralis Academy
    Date: 2022-07-15
    Skills: Black Thursday Analysis, Centrifuge, Flash Loans, Yield Hacking, DeFi Interest Rate Swap, DeFi Financial Stack, Stablecoins, Decentralized Insurance
    Link: https://academy.moralis.io/

- Blockchain Business Masterclass - Moralis Academy
    Date: 2022-08-24
    Skills: Industry Use Cases, Centralized Systems, Decentralized Systems, Hyperledger Fabric, Hyperledger Composer, Blockchain Tree, Permissioned Blockchains
    Link: https://academy.moralis.io/

- Ethereum Game Programming - Moralis Academy
    Date: 2022-11-24
    Skills: Building Game with JavaSscript, Computer Graphics, Business Use Cases, Non Fungible Tokens, Collectibles, ERC721, ECR1155, Integration of Smart Contract and Game, Smart Contract Programming
    Link: https://academy.moralis.io/

- Baseline Protocol & Unibright - Moralis Academy
    Date: 2022-11-29
    Skills: Unibright Framework, Corda & Quorum, Enterprise Blockchain, Baseline Protocol, Zero-Knowledge Proof, Hyperledger, Baseline & DeFi
    Link: https://academy.moralis.io/

- SCRUM - Goodhabitz
    Date: 2023-05-24
    Skills: Scrum Framework, 3 Pillars of Scrum, Sprint Planning, Product Backlog Management, Sprint Burndown Charts, Sprint Reviews, Agile Principles, Agile Development
    Link: https://goodhabitz.com/

- Unity Blockchain Game Development 101 - Moralis Academy
    Date: 2023-12-03
    Skills: Unity Basics, Unity Tilemaps & Stripes, Unity Prefabs, Unity in-game items, Unity Collisions, Unity C# Scripting, Unity Gravity
    Link: https://academy.moralis.io/

## Projects
- [My Coding Projects](https://www.paulsimroth.at/projects): Explore various coding projects showcasing Web3 and Blockchain expertise.

Here you can find a list of my projects:
- [Multi Signature Wallet](https://github.com/paulsimroth/Ethereum101-course-project)
    Description: This project was done for the course Ethereum Smart Contract Programming 101 @ Moralis Academy. It is a multi signature wallet where you need the approval of the majority of adresses with the role of Admin to complete certain transactions.
    Tech Stack: Solidity, DeFi, Smart Contracts, Moralis Academy, Course Project, Ethereum, Blockchain
    GitHub: https://github.com/paulsimroth/Ethereum101-course-project
    Blog: https://www.paulsimroth.at/blog/projects-multisignature-wallet

- [Ethereum DEX](https://github.com/paulsimroth/eth201project)
    Description: This project was done during the course Ethereum Smart Contract Programming 201 @ Moralis Academy. It was my first introduction to the ERC20 Standard and Truffle and improved my knowledge of Solidity.
    Tech Stack: Solidity, ERC20, DeFi, Truffle, Smart Contracts, Moralis Academy, Course Project, Ethereum, Blockchain
    GitHub: https://github.com/paulsimroth/eth201project
    Blog: https://www.paulsimroth.at/blog/projects-decentralized-exchange

- [Ethereum Game](https://paulsimroth.github.io/eth_game/)
    Description: This is my version of the game coded as part of the course Ethereum Game Programming @ Moralis Academy. We used Phaser 3.15.1 as the game engine. The coins are ERC20 Tokens. With those you can buy booster items (ERC1155 tokens). Deployed on Goerli!
    Tech Stack: Ethereum, Solidity, DApps, ERC20, ERC1155, Game Development, EthersJs, Phaser, Course Project
    GitHub: https://github.com/paulsimroth/eth_game
    Blog: https://www.paulsimroth.at/blog/projects-web3-gaming

- [ETH Domain Website](https://paulsimroth.github.io/eth_domains/)
    Description: This is a Web3 version of GoDaddy, similar to ENS. I followed a tutorial which is linked in the README. It consists of a smart contract and a React.Js App. You can see domains, purchase them or see their owner. It is deployed on Goerli Testnet.
    Tech Stack: Web3, ReactJs, Smart Contracts, DApps, Hardhat, Solidity, EthersJs, Study Project
    GitHub: https://github.com/paulsimroth/eth_domains
    Blog: https://www.paulsimroth.at/blog/projects-ethereum-domain-registrar

- [Real Estate Contract](https://github.com/paulsimroth/realestate_escrow)
    Description: Here I wanted to try out HardHat and familiarize myself with it. I followed a tutorial which is linked in the README. It is a real estate escrow smart contract with basic functions needed for a transaction including roles like buyer, seller, lender and inspector.
    Tech Stack: Web3, Smart Contracts, Hardhat, Solidity, Study Project
    GitHub: https://github.com/paulsimroth/realestate_escrow
    Blog: https://www.paulsimroth.at/blog/projects-real-estate-escrow

- [AI Chat](https://github.com/paulsimroth/ai_chat)
    Description: This project is a Next.Js App with TypeScript using Tailwind.css and is an AI Chat, using the OpenAI API for handling chat prompts and Firebase for handling user logins and storing chats. The user can choose between different ChatGPT versions.
    Tech Stack: AI, TypeScript, NextJs, Firebase, ChatGPT, Tailwindcss, Study Project, OpenAI
    GitHub: https://github.com/paulsimroth/ai_chat
    

- [Web3 Online Shop](https://paulsimroth.github.io/web3market/)
    Description: Here I built a Web3 version of an Online Shop, inspired by Amazon. I followed a tutorial which I linked in the README. It consists of a Smart Contract and a React.Js App where you can browse and buy items. It is now deployed on Goerli Testnet.
    Tech Stack: Web3, ReactJs, Smart Contracts, DApps, Hardhat, Solidity, EthersJs, Study Project
    GitHub: https://github.com/paulsimroth/web3market
    

- [Automated Market Maker](https://github.com/paulsimroth/amm)
    Description: This project demonstrates an Automated Market Maker (AMM) using Solidity, TypeScript, and Hardhat. It automates token trading by adjusting reserves and enables seamless token swaps and liquidity provision.
    Tech Stack: Solidity, TypeScript, HardHat, Smart Contracts, Web3, DeFi, Study Project
    GitHub: https://github.com/paulsimroth/amm
    Blog: https://www.paulsimroth.at/blog/projects-automated-market-maker

- [DAO Example](https://github.com/paulsimroth/dao_example)
    Description: This is an example of a DAO I made following a tutorial to get a better insight on how a DAO could work. In this example votes are cast using an ERC20 Token. Those votes are processed in the GovernanceContract, which is owned by a TimeLock contract.
    Tech Stack: Solidity, TypeScript, HardHat, Smart Contracts, ERC20, Web3, Study Project
    GitHub: https://github.com/paulsimroth/dao_example
    

- [Restaurant Management System](https://github.com/paulsimroth/restaurant_full_system)
    Description: This is an All-in-one solution for restaurants in need of a simple website with an integrated admin dashboard. The project uses tRPC to handle API communication and Prisma for connecting to a MongoDB Atlas database.
    Tech Stack: Next.js, TypeScript, Full-Stack App, MongoDB, Prisma, tRPC
    GitHub: https://github.com/paulsimroth/restaurant_full_system
    

- ['Fund Me' Smart Contract](https://github.com/paulsimroth/foundry-fund-me)
    Description: To get to know the Smart Contract Development Framwork Foundry, I made this project. It is a solidity Smart Contract to enable the deployer to get donations starting with a minimum amount of 5 US$.
    Tech Stack: Ethereum, Smart Contracts, Foundry, Solidity, Study Project, Chainlink, Web3
    GitHub: https://github.com/paulsimroth/foundry-fund-me
    Blog: https://www.paulsimroth.at/blog/projects-foundry-fund-me

- [Lottery Smart Contract](https://github.com/paulsimroth/foundry-lottery)
    Description: This is a proofably random smart contract lottery built with foundry. This project is a smart contract lottery using Chainlink VRF to determine a random winner. Chainlink automation is used to call the functions to determine the winner. This project does also include the relevant tests.
    Tech Stack: Ethereum, Smart Contracts, Foundry, Solidity, Study Project, Chainlink, Chainlink VRF, Chainlink Automation, Web3, Blockchain
    GitHub: https://github.com/paulsimroth/foundry-lottery
    Blog: https://www.paulsimroth.at/blog/projects-foundry-lottery

- [DeFi Protocol Smart Contracts](https://github.com/paulsimroth/foundry-defi-protocol)
    Description: This project is a stable cryptocurrency allowing users to exchange WETH and WBTC for a USD-pegged token. With exogenous collateral, US Dollar pegging, and a stabilization algorithm.
    Tech Stack: Ethereum, Smart Contracts, Foundry, Fuzz Testing, Solidity, Study Project, Chainlink, Chainlink VRF, Web3, Blockchain
    GitHub: https://github.com/paulsimroth/foundry-defi-protocol
    Blog: https://www.paulsimroth.at/blog/projects-defi-protocol-with-stablecoin

- [DAO Smart Contracts](https://github.com/paulsimroth/foundry-dao)
    Description: This project consists of a set of Solidity smart contracts for implementing a decentralized governance system. It includes contracts for managing a token with voting rights, a governor contract for executing proposals, and a timelock controller for enforcing a delay between proposal submission and execution. These contracts leverage OpenZeppelin libraries for secure and efficient governance functionalities.
    Tech Stack: Ethereum, Smart Contracts, Foundry, Solidity, Study Project, Web3, Blockchain
    GitHub: https://github.com/paulsimroth/foundry-dao
    

- [Crypto Knight - Web3 Game](https://gamez.paulsimroth.at/)
    Description: In this project I wanted to make the game I did as a study project some time ago a lot better. The main goal here was to firstly make the UI better and create a more up to standard Next.Js App and also add more functionality to the smart contracts.
    Tech Stack: Ethereum, Smart Contracts, Next.Js, Solidity, Phaser, Web3, Blockchain, Blockchain Gaming, ERC20, ERC1155
    GitHub: https://github.com/paulsimroth/crypto_knight_app
    

## Blockchain
- [Blockchain Data Insights](https://www.paulsimroth.at/blockchain): Explore on-chain data, transaction patterns, and blockchain insights.
- [Blockchain Key Performance Indicators](https://www.paulsimroth.at/blockchain/blockchain-kpis): Explore essential KPIs for evaluating blockchain performance and health.
- [Ethereum Unit Converter](https://www.paulsimroth.at/blockchain/unit-converter): Convert Ethereum units like Wei, Gwei, and Ether easily.
- [Web3 Development Tools](https://www.paulsimroth.at/resources): Explore essential tools for Web3 and blockchain development. 

## Blog
- [Web3 and Blockchain Insights](https://www.paulsimroth.at/blog): Explore insights on Web3, blockchain, and personal projects.

### Blog Posts: 
- [What Is The Verifiable Web](https://www.paulsimroth.at/blog/what-is-the-verifiable-web)
- [What Is Real World Asset Tokenization](https://www.paulsimroth.at/blog/what-is-real-world-asset-tokenization)
- [Blockchain Tech Trends 2025 And Beyond](https://www.paulsimroth.at/blog/blockchain-tech-trends-2025-and-beyond)
- [Trends In Blockchain 2024](https://www.paulsimroth.at/blog/trends-in-blockchain-2024)
- [Blockchain Use Cases](https://www.paulsimroth.at/blog/blockchain-use-cases)
- [Understanding Mica](https://www.paulsimroth.at/blog/understanding-mica)
- [Kpis On The Blockchain In Depth Guide](https://www.paulsimroth.at/blog/kpis-on-the-blockchain-in-depth-guide)
- [Blockchain And Web3 In Banking](https://www.paulsimroth.at/blog/blockchain-and-web3-in-banking)
- [How To Install Foundry On Windows](https://www.paulsimroth.at/blog/how-to-install-foundry-on-windows)
- [My Journey To Becoming A Web3 Developer](https://www.paulsimroth.at/blog/my-journey-to-becoming-a-web3-developer)
- [Blockchain And Web3 In Aviation](https://www.paulsimroth.at/blog/blockchain-and-web3-in-aviation)
- [What Is Web3](https://www.paulsimroth.at/blog/what-is-web3)
- [Projects Multisignature Wallet](https://www.paulsimroth.at/blog/projects-multisignature-wallet)
- [Projects Decentralized Exchange](https://www.paulsimroth.at/blog/projects-decentralized-exchange)
- [Projects Web3 Gaming](https://www.paulsimroth.at/blog/projects-web3-gaming)
- [Projects Real Estate Escrow](https://www.paulsimroth.at/blog/projects-real-estate-escrow)
- [What Is Web3 Gaming](https://www.paulsimroth.at/blog/what-is-web3-gaming)
- [Projects Ethereum Domain Registrar](https://www.paulsimroth.at/blog/projects-ethereum-domain-registrar)
- [Projects Automated Market Maker](https://www.paulsimroth.at/blog/projects-automated-market-maker)
- [Projects Foundry Fund Me](https://www.paulsimroth.at/blog/projects-foundry-fund-me)
- [Projects Foundry Lottery](https://www.paulsimroth.at/blog/projects-foundry-lottery)
- [Projects Defi Protocol With Stablecoin](https://www.paulsimroth.at/blog/projects-defi-protocol-with-stablecoin)
- [Introduction Account Abstraction](https://www.paulsimroth.at/blog/introduction-account-abstraction)
- [Why Should You Care About Web3](https://www.paulsimroth.at/blog/why-should-you-care-about-web3)
- [Core Pillars Of Web3](https://www.paulsimroth.at/blog/core-pillars-of-web3)
- [Blockchain In Enterprise](https://www.paulsimroth.at/blog/blockchain-in-enterprise)
- [Understanding Ethereum A Primer On The Whitepaper](https://www.paulsimroth.at/blog/understanding-ethereum-a-primer-on-the-whitepaper)