1c4d3580d4
The move mirror re-pointed a parent edge for every shape a :mov-objects change named, so the fold followed a move the document refused. Two measured consequences: moving a shape into its own subtree left the fold disagreeing with a rebuild, and moving a shape under its own descendant closed a cycle in the fold's parent edges, after which the fold had not returned eight seconds later with app.graph.overlay.sync/subtree-eids on the stack. The gate is all-or-nothing for the whole change, which is the half a per-shape mirror cannot see: process-change :mov-objects proceeds only when the change names a shape, the parent exists, and every named shape passes its own is-valid-move?, so one invalid shape in a batch of ten moves none of them. The mirror now asks the same question of the running state, in the change's own order. It asks rather than answers, because a predicate written again in the applier would be a second definition of which moves are legal, and the two would drift the first time Penpot changes a nesting rule. So calculate-invalid-targets and the predicate move out of the change method into valid-move? at the namespace level, taking the objects view and the two flags, with the method's own call site delegating to them and no behaviour changed. The objects view is what the answer takes rather than a container: the decision walks the moved shape's subtree down :shapes and the destination's chain up :parent-id, reading :component-id and :shape-ref off every shape it meets, and the overlay holds all of those, which is why the same predicate answers for an index. subtree-eids gains the guard the cycle case needs, so a cyclic index fails loudly instead of spinning: the walk tracks the shapes it has entered and returns. Six new tests, and each mutation of the repair fails by name rather than in an unrelated test: dropping the gate fails seven assertions across the three gate tests, weakening every? to some fails the three that pin the change-level reading, asking the predicate about the wrong destination fails the same seven, and removing the walk guard fails the two that pin the cycle. backend-tests.graph-overlay-sync-test: 29 tests, 228 assertions, 0 failures. Entry: pp:graph:decide-a-move-the-way-the-document-does open -> done AI-assisted-by: deepseek-flash
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Penpot is the open-source design platform for teams that build digital products at scale.
Penpot’s key strength lies in giving you full ownership of your design infrastructure. Built on open source and designed for self-hosting, it puts teams in complete control of their design environment supporting strict compliance and governance requirements. Whether used in the browser or deployed on your own servers, Penpot works with open standards like SVG, CSS, HTML, and JSON.
Real-time collaboration strengthens this foundation, helping teams scale and bring design closer to the product through top-tier capabilities. Additionally, developers feel at home using Penpot, because design is expressed as code, enabling a direct translation and shipping products faster.
Best-in-class native Design Tokens provide a single source of truth between design and development. They ensure consistency, improve collaboration, and make it easier to manage complex design systems.
The MCP server takes it further by enabling multi-directional workflows between design and code. A powerful open API and plugin system makes the workspace programmable, enabling automation, AI-driven workflows, and integrations with the tools and systems you already use.
With CSS Grid and Flex Layout, teams can design responsive interfaces that behave like real code from the start.
Combined, these features turn Penpot into a full-stack design platform for building scalable design systems and fully integrated product development processes.
If your organization is scaling and needs extra support, we’re here to help. Talk to us
Table of contents
Why Penpot
Penpot connects design, code, and AI workflows through a code-based approach, making designs readable by developers and AI via the MCP server. This approach helps teams ship what’s actually designed and manage design systems at scale with powerful design tokens. As a self-hosted, open-source and real-time collaboration platform, Penpot offers full flexibility, security, and ownership without vendor lock-in. Learn more about why Penpot is the platform for your team.
Plugin system
Penpot plugins let you expand the platform's capabilities, give you the flexibility to integrate it with other apps, and design custom solutions.
Designed for developers
Penpot was built to serve both designers and developers and create a fluid design-code process. You have the choice to enjoy real-time collaboration or play "solo".
Inspect mode
Work with ready-to-use code and make your workflow easy and fast. The inspect tab gives instant access to SVG, CSS and HTML code.
Integrations
Penpot offers integration into the development toolchain, thanks to its support for webhooks and an API accessible through access tokens.
Building Design Systems: design tokens, components and variants
Penpot brings design systems to code-minded teams: a single source of truth with native Design Tokens, Components, and Variants for scalable, reusable, and consistent UI across projects and platforms.
Getting started
Penpot is the only design & prototype platform that is deployment agnostic. You can use it in our SAAS or deploy it anywhere.
Learn how to install it with Docker, Kubernetes, Elestio or other options on our website.
Penpot Enterprise
Penpot Enterprise is our paid plan for organizations that need to scale their design work across multiple teams with advanced governance, security, and administration. Manage teams and access from a centralized Admin Console, configure advanced permissions, and connect your identity provider through SSO. Available for cloud and self-hosted environments, it combines enterprise controls with Penpot’s open-source foundation and open standards.
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We love the Open Source software community. Contributing is our passion and if it’s yours too, participate and improve Penpot. All your designs, code and ideas are welcome!
Want to go a step further? Become a Penpot Ambassador and help grow the Penpot community in your region while contributing to a global, open design ecosystem.
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Anyone who contributes to Penpot, whether through code, in the community, or at an event, must adhere to the code of conduct and foster a positive and safe environment.
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Choose your way:
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- Contribute to Penpot's code: Watch this video by Alejandro Alonso, CIO and developer at Penpot, where he gives us a hands-on demo of how to use Penpot’s repository and make changes in both front and back end.
To find (almost) everything you need to know on how to contribute to Penpot, refer to the contributing guide.
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Copyright (c) KALEIDOS SUBSIDIARY SL
Penpot is a Kaleidos’ open source project