Deepkit is similar to Java Spring or PHP Symfony/Laravel in that it offers core functions and design patterns to develop complex software. One core difference is that Deepkit is written in TypeScript and uses TypeScript's type system at runtime. Since TypeScript's type system is much more powerful than PHP's or Java's type system, Deepkit can provide more expressiveness and efficiency. This results in a more ergonomic and efficient development experience, especially for larger applications and teams.