Cue, Kubernetes, Docker
I like tools that make infrastructure and configuration explicit, composable, and automatable. Cue is interesting because it treats configuration as logic. Kubernetes provides a consistent API for operating software. Docker makes environments and builds more repeatable.
TypeScript, Node.js, Linux
I like TypeScript because it catches more problems before runtime while staying flexible. Node.js is excellent for stateless services, developer tooling, and glue code. Linux remains the best common denominator across local development and production systems.
Bash and Prettier
Bash is still one of the best ways to connect disparate systems. Prettier removes formatting arguments so diffs can focus on meaning instead of style.