TLifeTime zones8 min read
Engineering a Tết countdown across time zones
From one Vietnamese midnight to a reliable countdown across apps, widgets, and devices.
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Notes for building useful products and lasting habits.
Practical writing about reading, time, offline data, and the decisions behind focused everyday apps.
Date math8 min read
Date calculation edge cases that break utility apps
Local dates, holidays, inclusive counting, and the off-by-one errors users actually notice.
Read articleOffline-first8 min read
Designing an offline-first reading journal
A local-first architecture that keeps reading sessions, notes, and quotes safe without a network.
Read articleReading habit9 min read
How to Build a Reading Habit That Actually Lasts
A practical way to make reading part of ordinary days through smaller goals, reliable cues, and a record that supports rather than judges.
Read articleReading slump9 min read
How to Get Out of a Reading Slump Without Turning Reading Into Homework
Reduce pressure, choose a book that fits your attention, and rebuild a reading rhythm through sessions small enough to enjoy.
Read articleReading journal9 min read
Reading Journal or Book Tracker? Choose a System You’ll Keep Using
Understand the difference between a reading log, book tracker, and reading journal, then combine only the parts that support your reading life.
Read articleBook Memory9 min read
Meet Book Memory: Track Your Reading and Remember What Matters
A focused reading companion for sessions, progress, notes, quotations, reading history, and personal EPUB, MOBI, and PDF files.
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