YYang & You— /now
UPDATED 3 DAYS AGO · WEEK 38 · 2026— Kept in ink.

What I'm
doing now.

A /now page, in the tradition of Derek Sivers — an honest note about the three or four things I'm actually spending my hours on right now. Not the About page, not the résumé. Just the current.

Updated whenever the week gives me something worth writing down.

CHAPTER 01 · Work

What I'm making

Three chapters in flight

An eval pipeline for our RAG system, that finally tells me the truth.

I'm pulling real production Q&A pairs offline, running three rerank strategies against them, and doing proper significance tests on the outcomes. Version 2 currently beats baseline by 6.4 percentage points—two more weeks of validation before I trust the number.

STACK · Python · Weaviate · Cohere Rerank · pytest

A long essay on agent memory — and why it's not what most people think.

Trying to write clearly about the three-layer picture — short-term, episodic, semantic — and pair it with a small working example. Rewriting chapter three a third time this week.

STACK · Long-form · ~6,000 words · Diagrams TBD

A one-week hack: self-hosted search over my own notes.

All my notes are in plain markdown. I want a tiny search box that finds things by meaning, not just keyword. Probably a weekend project if the eval pipeline wraps up on time.

STACK · FastAPI · SQLite-vec · Alpine.js
CHAPTER 02 · Body

What I'm training

The sub-50 project

10 kilometers, under 50 minutes.

Current PR is 52:14 from last October. The plan is three runs a week — easy, intervals, long — with a 5km time trial every fourth week. This week was 400m×12 at 3'45" pace. The body is adapting faster than the mind.

STACK · Easy 6km · Intervals 400m×12 · Long 12km
CHAPTER 03 · Mind

What I'm reading

Books in rotation

Deep Work, third time through.

Every re-read hits different. This time it's the chapter on attention residue — the cost of context switching is higher than I remembered. Trying 90-minute blocks again, phone in another room.

STACK · Cal Newport · 2016

The Creative Act by Rick Rubin.

Recommended by three different people in one week. That's usually a sign.

STACK · Rick Rubin · 2023