I’m Andy Carlberg, Digital Strategist.
I challenge assumptions and fix what’s broken in business. This is where I share my perspective on diagnosing organizational friction, architecting resilient technology roadmaps, and achieving sustainable team efficiency.
I also write about personal finance, homelab infrastructure, and the strategic use of narrative and communication.12/4/2025
Day 4 required solving an iterative spatial problem. I used spatial indexing for efficient neighbor counting and a BFS simulation to model the cascading removal of paper rolls.
12/3/2025
The Day 3 challenge demanded maximizing a 12-digit sequence, testing our system's architectural resilience. See the journey from flawed assumptions to implementing the optimized stack, ensuring robustness against extreme scale via BigInt.
12/2/2025
A Principal Architect's breakdown of AoC Day 2. See how TDD and architectural discipline hold up under new requirements, and the limits of AI in generating governed tests.
12/1/2025
Architects don't just solve problems; we prevent them. See why applying enterprise-grade TDD and strategic overkill to Advent of Code is the only way to build resilience. Day 1.