Building a distributed system recently, I needed globally unique IDs. Started with auto-increment database IDs, then hit a wall with sharding—diffe…

Last week I helped a colleague debug a database connection issue. After hours of troubleshooting, we found an extra space in the .env file’s `DAT…

Recently, I built a code sharing tool that requires a “no backend, permanent validity” sharing mechanism. After researching several approaches, I c…