9 min read
Profiling Liquid: How I Find What Slows a Shopify Page
Theme Inspector shows per-section render time right in Chrome DevTools
The Lab · Written in the open
Lab.
Working notes from the studio. The tools I build, the workflows I keep, the mistakes I paid for.
468 entries · latest 2026-10-21
Latest entry
Scheduled Jobs and Time Zones: The Midnight Bug I Keep Seeing
Cron runs in UTC by default, so a "midnight" job can fire on the wrong local day Define the business day explicitly with a timezone string, never a UTC offset DST shifts your offset twice a year, which silently moves...
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TLDR
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- Cron runs in UTC by default, so a "midnight" job can fire on the wrong local day
- Define the business day explicitly with a timezone string, never a UTC offset
- DST shifts your offset twice a year, which silently moves job times by an hour
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9 min read
Writing Commit Messages That Double as Documentation
A three-part commit structure (what, why, impact) answers 90% of git blame questions
9 min read
Optimistic UI Updates That Never Lie to the User
Optimistic UI shows the result in under 16ms, before the server replies
8 min read
AVIF, WebP or JPEG: Picking an Image Format in 2026
AVIF cuts photo file size 30-50% below JPEG but encodes slower
9 min read
Database Migrations I Can Roll Back at 2am
Every schema change ships with a down step, tested before deploy
9 min read
How I Write Alt Text That Helps Screen Readers and Search
Decorative images get empty alt (alt=""), never missing alt
9 min read
Retry With Backoff and Jitter: The Version I Copy Everywhere
Naive retries hammer a recovering server and turn blips into outages
9 min read
Focus States That Survive a Redesign: A Keyboard-First Checklist
Redesigns silently break focus states; I run a 6-point check before every ship
8 min read
Request Validation at the Edge: A Minimal Pattern I Reuse
Reject bad requests at the edge before they touch real logic or a database
9 min read
Shopify Cart Attributes: Passing Context Through Checkout
Cart attributes carry page context into the order without touching the product itself
9 min read
The Weekly Operating Rhythm That Keeps a Solo Studio Shipping
Monday is planning only, no building, protects the week's focus