Hi, my name is

Andrew Liu

Focus Family Guide Second Brain Blueberry Flashcards

SOFTWARE ENGINEER

B.S. Computer Science, Pre-Dental Track, UMD 2027

try { interview(andrew) } catch { /* unreachable */ }

I build tools that make complicated ideas easier to understand, for people I actually know.

WARNING: MERGES CLEANLY

Founder of Blueberry, a team of four

// TODO: SCHEDULE THE INTERVIEW

Browser Use docs used by 200+ contributors

MAY CAUSE INTERVIEWS

SAT students up 100 to 300 points

Mentoring 25+ students at KCM ← (Kharis Campus Ministry, see timeline!)

RDKit.js grading in the browser

B.S. Computer Science, Pre-Dental Track, UMD 2027

try { interview(andrew) } catch { /* unreachable */ }

I build tools that make complicated ideas easier to understand, for people I actually know.

WARNING: MERGES CLEANLY

Founder of Blueberry, a team of four

// TODO: SCHEDULE THE INTERVIEW

Browser Use docs used by 200+ contributors

MAY CAUSE INTERVIEWS

SAT students up 100 to 300 points

Mentoring 25+ students at KCM ← (Kharis Campus Ministry, see timeline!)

RDKit.js grading in the browser

00 / Contents

WHERE TO?

You do not have to read this front to back. Pick the part you came for.

Or skip the tour and take the one-page version.

Résumé

02 / On a phone

IN YOUR pocket.

Six screens from the live site and the game, captured at phone size: the periodic table, the reaction search, the calendar, the units, the pathway and a lesson.

Open it on your phone

Open the periodic table,
Game Periodic table
Open the Learn page,
Site Learn
Search the reactions,
Game Reaction search
Walk the pathway,
Game Pathway
Check the exam calendar,
Site Schedule
Play this lesson,
Game Lesson

01BlueberryFounder and product lead
02FlashcardsWhere Blueberry started
03Second BrainPersonal operating system
04Mechanism TrainerInteractive chemistry
05Chemistry Explainer Animation PipelinePython, cairosvg, ffmpeg
06Focus Family GuideDesign for community
07The résumé islandIt is at the bottom of this page.

Founder and product lead / 2026 to now
Blueberry
Where Blueberry started
Flashcards
Personal operating system / 2026
Second Brain
Interactive chemistry
Mechanism Trainer
Python, cairosvg, ffmpeg / 2026
PythonDraws each reaction frame as SVG, in code
cairosvgRasterizes the frames
ffmpegComposites the frames with narration
Explainer videoReplaces hand-animated slides
The spec Interactive chemistry figures for a professor's online textbook
Chemistry Explainer Animation Pipeline
Design for community
Focus Family Guide

Blueberry

Turned a flashcard tool for classmates into an AI-assisted organic chemistry learning platform, leading product and learning design for a team of four. I also wrote the 19-slide investor deck.

See it live Source

See it on a phone

Flashcards

It started as a Grignard reaction deck for my classmates, and turned into a study engine for any question deck.

See it live Source

Now the study decks inside Blueberry.

Second Brain

Five tools in one app: notes, AI chat, nutrition and workout logging, goals, and a project dashboard.

Source

Mechanism Trainer

Draw the molecule. Push the electrons. Understand the reaction.

See it live Source

Now folded into Blueberry.

Chemistry Explainer Animation Pipeline

Renders reaction frames as SVG in code and composites them into narrated explainer videos, replacing hand-animated slides.

Focus Family Guide

A practical publishing guide for the next Focus Family leaders.

See it live Source

PythonTypeScriptReactViteTailwindSupabasePostgreSQLRDKit.jsGoogle Apps ScriptClaude and Gemini APIs

04 / Impact

Second Brain67Memories saved62,267Indexed rows5,449Files indexed11Wiki pagesBlueberry313Commits over time6Packages200Test filesFocus Family Guide16Commits over time19daysFirst to last commit5,474Words in the guide8SectionsEvery repo727Commits I authored18daysLongest streak

67Memories saved

Memories by kind

Memories by kind
kind	memories
decision	37
pref	14
gotcha	11
fact	5

62,267Indexed rows
5,449Files indexed
11Wiki pages

Memories saved

Every saved memory, counted on the day it was written.

Memories saved
date	memories
2026-09-15	3
2026-09-17	4
2026-09-22	7
2026-09-23	10
2026-09-24	15
2026-09-25	17
2026-09-27	19
2026-09-28	27
2026-09-29	32
2026-09-30	40
2026-10-01	52
2026-10-06	64
2026-10-07	67

Tokens to answer, by memory system

The bench.py hard suite: the brain against a fresh session, Claude Code auto memory and qmd.

Tokens to answer, by memory system
arm	tokens (tokens)	correct	n
BRAIN	12145	26	27
fresh default session	44634	20	27
Claude Code auto memory	170118	22	27
qmd (BM25)	12550	17	27

Lookup time
arm	median (ms)	p90
BRAIN	649.9	772.6
GREP	531.1	607.7
GLOB	193.3	280.8

Tokens read per answer
arm	tokens
BRAIN	754
GREP	48335
GLOB	64852

Commits per week
week	commits
2026-08-17	1
2026-08-24	0
2026-08-31	0
2026-09-07	4
2026-09-14	6
2026-09-21	9
2026-09-28	7
2026-10-05	8

How this was measured

Memories saved: second-brain/second-brain/memories/*.md: every "## [date] kind |" heading; dates only, running total by day
Memories by kind: second-brain/second-brain/memories/*.md: the same headings, counted by their kind field
Indexed rows: second-brain/second-brain/index.tsv: data rows after the header, streamed
Files indexed: second-brain/second-brain/index.tsv: distinct values in the first (path) column
Wiki pages: second-brain/second-brain/wiki/pages/*.md: file count

313Commits over time

6Packages
200Test files

Commits over time

Commits over time
date	commits
2026-07-31	2
2026-08-01	15
2026-08-02	42
2026-08-03	58
2026-08-04	83
2026-08-05	98
2026-08-06	121
2026-08-07	124
2026-08-08	129
2026-08-10	131
2026-08-11	144
2026-08-12	152
2026-08-13	166
2026-08-14	175
2026-08-15	184
2026-08-16	186
2026-08-18	188
2026-08-19	205
2026-08-20	206
2026-08-21	210
2026-09-07	220
2026-09-08	230
2026-09-09	233
2026-09-10	236
2026-09-11	237
2026-09-12	238
2026-09-17	246
2026-09-18	248
2026-09-22	256
2026-09-23	262
2026-09-24	268
2026-09-25	273
2026-09-27	276
2026-09-28	286
2026-09-29	288
2026-09-30	298
2026-10-01	313

What is inside
item	items
decks	18
questions	415
lessons	12
reactions	43

How this was measured

Commits over time: git -C grignard/grignard-app-source log --format=%ad --date=short, running total by day
Packages: grignard/grignard-app-source/packages/*/package.json: count
Test files: grignard/grignard-app-source: *.test.* files under src/ and packages/, node_modules excluded

16Commits over time

19 daysFirst to last commit
5,474Words in the guide
8Sections

Commits over time

Commits over time
date	commits
2026-09-09	4
2026-09-14	5
2026-09-15	11
2026-09-27	15
2026-09-28	16

How this was measured

Commits over time: GitHub API, andliu7/ff_technical_instructions commits, running total by day
First to last commit: GitHub API: days from the first commit (2026-09-09) to the last (2026-09-28)
Words in the guide: ff_technical_instructions/repo2/index.html: words of visible text
Sections: ff_technical_instructions/repo2/index.html: h2 sections

727Commits I authored

18 daysLongest streak

Commits, day by day

Every commit I authored, in every repo, one block per day.

Commits, day by day
date	commits
2026-07-27	0
2026-07-28	0
2026-07-29	0
2026-07-30	0
2026-07-31	2
2026-08-01	18
2026-08-02	55
2026-08-03	16
2026-08-04	25
2026-08-05	15
2026-08-06	25
2026-08-07	26
2026-08-08	8
2026-08-09	0
2026-08-10	2
2026-08-11	13
2026-08-12	8
2026-08-13	14
2026-08-14	9
2026-08-15	9
2026-08-16	2
2026-08-17	0
2026-08-18	2
2026-08-19	33
2026-08-20	48
2026-08-21	57
2026-08-22	0
2026-08-23	0
2026-08-24	0
2026-08-25	4
2026-08-26	26
2026-08-27	7
2026-08-28	16
2026-08-29	10
2026-08-30	0
2026-08-31	0
2026-09-01	14
2026-09-02	6
2026-09-03	11
2026-09-04	10
2026-09-05	23
2026-09-06	3
2026-09-07	11
2026-09-08	12
2026-09-09	7
2026-09-10	4
2026-09-11	1
2026-09-12	1
2026-09-13	4
2026-09-14	33
2026-09-15	11
2026-09-16	1
2026-09-17	10
2026-09-18	2
2026-09-19	0
2026-09-20	0
2026-09-21	0
2026-09-22	9
2026-09-23	6
2026-09-24	7
2026-09-25	13
2026-09-26	0
2026-09-27	7
2026-09-28	14
2026-09-29	8
2026-09-30	12
2026-10-01	16
2026-10-02	0
2026-10-03	0
2026-10-04	0
2026-10-05	0
2026-10-06	15
2026-10-07	6

How this was measured

Commits, day by day: git log --branches in 8 of my repos, my own addresses only, deduped by hash, counted per day
Longest streak: git log --branches in 8 of my repos, my own addresses only, deduped by hash: the longest run of days with a commit

05 / Along the way

ALONG THE way

Press any key to skip

College Park, MD
Expected May 2027
Coursework
B.S. Computer Science, Pre-Dental Track, UMD
Machine Learning
Computational Genomics
Algorithms
Data Science
Programming Languages
Computer Systems
Web Development
- UMD Barbell Club
- Focus Family at KCM
- The UMD garden
Jan 2025 to now
Focus Family Leader
Kharis Campus Ministry (KCM)
Kharis means grace in Greek! Grace is being given something you do not deserve. A ministry of 100+ members.
The link between advisors, officers and leaders. Mentoring 25+ students, writing the guides that let other leaders run events without help, and a weekly digest email that reads the master calendar and summarizes shared folders with the Gemini API.
Jun to Aug 2025
AI Intern
Minnodi LLC
Built documentation and onboarding for Browser Use, an open-source AI agent platform with 2,000+ users. Guides adopted by 200+ contributors, and defects fixed across 20+ real web environments, each checked against a live agent run. Remote, async, across time zones.
Jun 2025 to Jan 2026
Math and Sciences Tutor
Education One
Taught anatomy, biology, genetics, chemistry and physics. SAT students improved 100 to 300 points on data-driven practice. Automated grading, duplicate checks and billing alerts in Apps Script: about 30% better margins and $2,000+ in losses caught.
Aug 2026 to now
Founder and Product Lead
Blueberry
Leading product direction and learning-science design for a team of four. Architected the React 19 and TypeScript monorepo (chem-core, curriculum, validators, interaction) on Supabase, and wrote the 19-slide investor deck.
Résumé