Blog Archive

tmux Is Not a Shortcut Cheat Sheet. It Is a Terminal Workflow.

tmux becomes a tool you actually want to use every day only when sessions, windows, panes, reconnects, configuration, and common mistakes all fit into one mental model.

March 18 Group Meeting Notes: Agentic Vending, Pre-Training Data, and Constitutional Classifiers

Cleaned-up listener notes from a March 18 group meeting hosted by my professor, covering Project Vend 2, data poisoning, token-level filtering, duplication, replayed pre-training data, and Anthropic's next-generation constitutional classifiers.

verl, vLLM, and FlashAttention: How the Stack Actually Fits Together

A practical guide to what verl, vLLM, and FlashAttention each do, why they appear in the same post-training setup, and where their responsibilities actually differ.

GRPO and Its Variants: What Actually Changes, and Why It Matters

A long-form engineering guide to GRPO, Dr.GRPO, DAPO, BNPO, REINFORCE++, RLOO, and newer trainer variants, with an emphasis on normalization, length bias, and practical training choices for LLM RL.

PPO Is Not Just a Clip Trick

Why the practical success of PPO comes from the whole implementation stack rather than the clipping term alone.

Gene-Expression Modules, PAM50, and Breast Cancer Pathology

A breast-cancer-focused introduction to gene-expression modules, showing how luminal, proliferation, HER2, basal, immune, and stromal programs relate to PAM50 subtypes, H&E morphology, and IHC.

MCP Is the Interface, Skills Are the Workflow

A practical guide to what MCP actually is, how Skills differ from MCP servers, and how to build both in a way that makes real agents more reliable instead of more complicated.

ER Status, PAM50, ER IHC, and H&E Images in Breast Cancer

A detailed overview of what ER status means in breast cancer, what ER immunohistochemistry and H&E images capture, how PAM50 intrinsic subtypes differ from IHC labels, and why combining ER IHC with H&E makes biological sense.