Canvas lays out every page of a store in one visual workspace, where merchants can edit directly or describe what they want and have Sidekick build it. It’s launching alongside the online store editor and will roll out to merchants over the coming days. Many merchants rely on your app to power thei…

Seems to be the end of themes.. And possibly the start of vibe coded stores that turn into chaos overtime.

@Jordan_Graham will merchants be warned that they cannot use app blocks? If they’re not we will receive a wave of emails asking why the app is not working in their “canvas” themes.

@Jordan_Graham - Is there any rough timeframe for when theme app extensions are expected to be supported in Canvas? It seems pretty concerning, and honestly a little crazy, to roll out and recommend (I assume) a new storefront editing experience to merchants when apps and app blocks aren’t supporte…

@Nick_Lepine And how about my question? [image] Soufiane_Ghzal: will merchants be warned that they cannot use app blocks?

We do not want to meet Canvas! We are overwhelmed with all these changes! Enough! We do not have billion dollar market cap with 100s of developer to keep up!

@Soufiane_Ghzal Yes. For the short period where apps won’t be supported in Canvas, Sidekick is aware and handles this gracefully. [image]

Does that mean 99% of apps will break after canvas is released? How is the most popular app in Shopify supposed to display review cards and collect reviews if theme app extensions won’t work anymore? Judge.me Product Reviews App - Collect unlimited product reviews, star ratings, testimonials | Shop…

I think shopify is trying to please investors: rushing releases, skipping QA, forgetting common sense, forgetting good engineering, screwing companies who helped them to grow, and embracing mediocrity. That’s the beginning of the enshitification process. You have to think that this release not onl…

actually OP sent us an email 1 hour prior announcing Canvas to everybody else… :smiley: with “we understand this will be disruptive to you, so I wanted to reach out directly to start the conversation.” Conversation about what exactly?

Meet Canvas: a new way for merchants to design their online store with Sidekick.

Extensions

Nick_Lepine October 1, 2026, 4:22pm 5

@Ollie_autoBlogger We plan to support theme app extensions in Canvas within the next few weeks.
Canvas is still early and evolving daily!

Topic		Replies	Views
Introducing Canvas: a new way for merchants to design their online store with Sidekick. Theme Store	1	272	October 2, 2026
Sidekick Should Verify Theme App Embed & Block/Section Placement - Not Just Guide Extensions theme-app-extension	3	94	August 5, 2026
Cart based app extensions can't be previewed in the theme editor Extensions theme-app-extension	2	75	August 25, 2026
Saving the theme thorugh app/extension Extensions theme-app-extension	3	115	July 15, 2025
App store requirement: direct merchants to theme store Shopify App Store app-store	7	248	March 19, 2026

Meet Canvas: a new way for merchants to design their online store with Sidekick.

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