Bits2Bricks

Technical tutorials bridging software and physical engineering by Yago Mendoza.

- The complete OpenClaw playbook: The full OpenClaw stack: architecture, VPS deployment, skills, channels, security, and every containment technique ranked by effort and protection. - How LLMs learn: A ground-up explanation of how language models are trained after pretraining — SFT, DPO, RL, RLHF, reward hacking, KL divergence, and the DeepSeek-R1 pipeline. - Transformers from scratch: A patient, ground-up explanation of transformer architecture — how tokens become predictions, what attention really computes, where facts live, and why it all scales. - MCP before and after: The Model Context Protocol turned every external service into a tool call. Here's what changed, what broke, and what's coming next. - Claude Code from zero to production: The complete Claude Code stack: installation, CLAUDE.md, skills, hooks, permissions, MCP servers, agent teams, Cowork, UI tools, and the workflow that ties them together.