Recent episodes
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- 045: Patrick Pierre of Code that ConvertsJuly 17, 2025
- Episode 44 - Mohammad Hashemi with GadgetJuly 3, 2025

047: Theme Blocks, AI Tools, and Barcelona Adventures
In this episode of Liquid Weekly, Karl and Taylor reconnect after Taylor's anniversary trip to Barcelona, diving into their latest Shopify development work including theme blocks, app development challenges, and the evolving AI tooling landscape.
Episode Highlights:
- Taylor's experience transitioning from sections/blocks to theme blocks and the mental shift required
- Karl's EtherCycle app development progress and webhook filtering solutions
- Discussion of AI coding tools: Claude Code, Cursor, Kiro, and GPT-5 comparisons
- Taylor's Barcelona travel stories and balancing client work while on vacation
- The challenges merchants face adapting to theme blocks in themes like Horizon
- Karl's clever solution for filtering Shopify webhooks per shop to reduce infrastructure overhead
- Four-year anniversary milestone for the Liquid Weekly newsletter
00:00 - Introduction and Barcelona recap
15:30 - Theme blocks learning curve and documentation
28:45 - AI coding tools comparison and workflow
35:20 - App development updates and webhook solutions
45:10 - Travel work-life balance and client management
52:30 - Shopify Dev Changelog
57:00 - Picks of the Week
Resources:
- Horizon theme (now open source) - https://github.com/Shopify/horizon
- Jan's Horizon customization video - https://www.shopifyacademy.com/video-...
- Shopify customize webhook filters - https://shopify.dev/docs/apps/build/w...
- Raycast - https://raycast.com/?via=taylor
- Warp terminal - https://app.warp.dev/referral/2WY6RV
- Kiro AI coding tool - https://kiro.dev/
- Claude Code - https://www.anthropic.com/claude-code
- Cursor CLI - https://cursor.com/en/cli
Dev Changelog:
- Request app reviews in admin with the new Reviews API - https://shopify.dev/changelog/request...
- New: Support for nested cart lines - https://shopify.dev/changelog/new-sup...
- [action required] _tracking_consent, _landing_page, _orig_referrer cookies will no longer be set - https://shopify.dev/changelog/trackin...
- [action required] _shopify_y and _shopify_s cookies will no longer be set - https://shopify.dev/changelog/shopify...
- [action required] Deprecation of the checkout_and_accounts_configurations/update webhook - https://shopify.dev/changelog/depreca...
Picks of the Week:
Karl: Taylor (awwwww)
Taylor: Kindle Paperwhite - https://amzn.to/3UL74CB