Below is a list of just a few simple ways you can save gas in solidity contracts. The full list is seemingly endless, but all boils down to finding the most efficient way to perform an action with the minimum number of operations. Table of contents State data vs bytecode data The power…

Storage writes are expensive, write less Chances are you have interacted with a smart contract and thought — geez that was expensive. I know I have. The culprit is usually the number of writes to storage or just simply bad logic. I cant help too much with bad logic, that…

A Solidity authorization and permission system If you have used Cooltopia, you will know that you only need to authorize your account once via a signed message. After that, you will no longer see any wallet popups asking for permissions. …

Hopefully, you know that it is impossible to generate a random number purely on-chain. You need to use services like chainlink, but let's be completely honest, pseudo-random is usually good enough for most needs. However, sometimes you need multiple random numbers and things start to get expensive in terms of…

Processing everything on-chain is great, but not always practical and sometimes you might want to do something a little tricky in order to save users gas. Sadly, simply passing the desired data to a contract is not secure and without security measures, people will certainly abuse your contract. There is…

Automated drops — The first air dropper I created was a semi-auto dropper that required a fair amount of manual data entry. Not ideal, prone to human error and slow. At the time it made sense due to time constraints. …

Community is key Let me preface this article by saying, I speak to many NFTs owners and prospective owners. Nothing in this article is directed at any single person or NFT project. It is mostly a reflection of my personal experiences. The Cool Cats team didn't expect things to grow…

Cool Cats launched a little over five weeks ago, although it feels like much longer. In that time I have spotted a few projects using the Cool Cats contract as a base for their NFT. As such, I feel that I should outline contract improvements that I would make. Trimming the fat In…

Cats made of paper — right? Nope. Setting up your first crypto wallet is hard, it's confusing, and almost every tutorial is over complicated and full of jargon. It doesn't have to be. This is where Paper Cats comes in. Friendly NFT/Crypto onboarding We are creating a series of comic-book-style tutorials that use…