While building LogicVisor's review system, I was faced with a question I hadn't thought about before: what would happen if users submitted duplicate algorithm solutions? I decided to test it myself. I submitted a solution to a simple palindrome chal...

Let's talk about wallet based auth in NestJS. What this is, is basically an auth system where the user is authenticated and authorized based on their web3 wallet. We'll be doing this with a Solana wallet. The process is quite straightforward: User ...

Imagine you've just watched your first tutorial on authentication. You spin up a login flow, add some JWTs, and call it done. Then you push to production and realize those tutorials skipped the hard parts—token revocation, session management, replay ...