# software-architecture

Ghostty creator Mitchell Hashimoto saw Ghostty take 18 months to reach a million daily update checks, while its underlying library, libghostty, reached millions of daily users in 2 months—a sign that software is shifting from building the best product to providing the best building blocks.

Hugging Face CTO Thomas Wolf analyzes how AI fundamentally restructures software: return of monoliths, death of Lindy Effect for legacy code, rise of strongly typed langs, new LLM langs, & open source changes. Karpathy predicts: "rewriting large fractions of all software many times over."

Karpathy used DeepWiki MCP and GitHub CLI to have Claude rip fp8 training out of torchao into 150 self-contained lines that ran faster. His bacterial code idea favors low-coupling, dependency-free code agents can extract and transplant.