--- title: An interface change for flake schemas | daily.dev description: Determinate Systems is introducing a breaking interface change to flake schemas in Determinate Nix. The existing `schemas` output currently serves two roles:... canonical: https://daily.dev/posts/an-interface-change-for-flake-schemas-6ckqm9zr2 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: An interface change for flake schemas | daily.dev og:description: Determinate Systems is introducing a breaking interface change to flake schemas in Determinate Nix. The existing `schemas` output currently serves two roles:... og:url: https://daily.dev/posts/an-interface-change-for-flake-schemas-6ckqm9zr2 og:image: https://api.daily.dev/og/posts/6cKqm9zr2.png og:image:alt: An interface change for flake schemas og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # An interface change for flake schemas **[Determinate Systems](https://daily.dev/sources/determinate-systems)** · 3 min read · 0 upvotes · 0 comments ## Summary Determinate Systems is introducing a breaking interface change to flake schemas in Determinate Nix. The existing `schemas` output currently serves two roles: describing a flake's output structure and sharing new schemas with the ecosystem. These roles are being split into two separate outputs: `schemas` (existing behavior) and a new `exportedSchemas` output for publishing custom schemas. The change is available now in flake-schemas 0.5.0 and is not yet breaking, but will become required in the upcoming 1.0 release. Developers are encouraged to migrate to `exportedSchemas` now to avoid future disruption. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Changelog: Determinate Nix 3.21.7](https://daily.dev/posts/changelog-determinate-nix-3-21-7-spb0ixqhl) · Determinate Systems · 0 upvotes · 0 comments - [The Great Nix Flake Check](https://daily.dev/posts/the-great-nix-flake-check-joelq4xlg) · Lobsters · 0 upvotes · 0 comments - [Changelog: FlakeHub Cache edge routing and a few crash fixes](https://daily.dev/posts/changelog-flakehub-cache-edge-routing-and-a-few-crash-fixes-umodwxeoj) · Determinate Systems · 0 upvotes · 0 comments - [Changelog: faster evaluation and FedRAMP cache keys](https://daily.dev/posts/changelog-faster-evaluation-and-fedramp-cache-keys-qbkpwjrox) · Determinate Systems · 0 upvotes · 0 comments --- [View this post on daily.dev](https://daily.dev/posts/an-interface-change-for-flake-schemas-6ckqm9zr2) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"An interface change for flake schemas","url":"https://daily.dev/posts/an-interface-change-for-flake-schemas-6ckqm9zr2","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/an-interface-change-for-flake-schemas-6ckqm9zr2"},"datePublished":"2026-07-26T07:48:19.762Z","dateModified":"2026-07-26T07:49:07.111Z","description":"Determinate Systems is introducing a breaking interface change to flake schemas in Determinate Nix. The existing `schemas` output currently serves two roles:...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/2d34b228b0eb67e05f070b1e8c61a828?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/2d34b228b0eb67e05f070b1e8c61a828?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"Determinate Systems","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Determinate Systems","logo":"https://media.daily.dev/image/upload/s--E2qrkc9w--/c_limit,w_256/f_auto,q_auto/v1785052094/logos/determinate-systems?_a=BAMAMicg0","url":"https://daily.dev/sources/determinate-systems"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/an-interface-change-for-flake-schemas-6ckqm9zr2","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"","timeRequired":"PT3M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Determinate Systems","item":"https://daily.dev/sources/determinate-systems"},{"@type":"ListItem","position":3,"name":"An interface change for flake schemas"}]} ```