42a2e33ffe
Snapshots, automatic and user, now store pointer-based rows that share fragments with the live file instead of duplicating page content. `get-file-snapshot` resolves those pointers on the server so version previews keep rendering plain data, and `restore!` reuses the shared rows. Export still materializes (the package carries no fragments) and import regenerates them. `file-gc` treats the main file and every unpurged snapshot as liveness roots, reads the file unrealized, and reattaches the original pointer wherever the cleaned value is unchanged, so a pass over an untouched file writes no fragments and a pass over an edited file keeps the ids of the pages it did not touch. Snapshot creation and the restore backup take the file row `FOR SHARE`, which serializes them with the pass and closes the race that let a new snapshot reference fragments the pass was about to mark. All backend pointer bindings go through the `fdata/with-pointers`, `with-tracked`, `with-tracked-pointers` and `with-untracked` macros. The loader reads fragments a previous pass marked until `objects-gc` purges them, and the frontend fails loudly with retry instead of dropping an unresolved fragment. Review fixes in this branch: the automatic snapshot attaches before pending migrations, `realize-pointers` is the single verb, `reattach-unchanged` takes the identity fast path, the restore guard takes its revn from the backup read, and `PointerMap.withMeta` generates a fresh id when metadata changes. Tests cover both snapshot writers (red without the lock), snapshot sharing and pin release through the real delete and purge paths, reattach against orphan marking, preview after offload, the pointer binding contracts and the with-meta id change. Closes #12410 AI-assisted-by: muse-spark-1.3-contributor AI-assisted-by: deepseek-v4.1-flash ♻️ Pin no-churn behavior for untouched pages Pin the behavior the churn verification measured: a save keeps the fragment id of every page it does not touch, with a page of eleven keys (PersistentHashMap), a 46-shape objects map and a nine-page index (hash map). Also pin the mixed case: a data-level objects-map flip rewrites the old pointer pages once and the next save keeps the new ids. The memory records the identity rule behind it: re-assoc with the same value returns the same map in array and hash maps alike. Closes #12410 AI-assisted-by: deepseek-v4.1-flash ⚡ Stop loading untouched pages when enabling objects-map `enable-objects-map` wrapped every page on every save, and reading a page's objects forced its PointerMap to load the fragment. A save of one page in a seven-page file therefore made seven fragment reads. Skip unloaded pointers: their fragment was already wrapped by the encode-file that wrote it, so loading it only to wrap it again is a no-op. The save now loads only the pages it edits. A page with a plain fragment (a data-level feature flip) keeps its plain fragment until it is first loaded or edited; a migration that enables the feature must rewrite the data itself. Cover the change with load-count tests for save and restore, update the flip test to the new contract, and drop the stale restore comment. Closes #12410 AI-assisted-by: deepseek-v4.1-flash ⚡ Keep page fragment ids through pending migrations Applying a pending migration on read realized the file, ran the migration and persisted it again; the persist wrapped every plain page in a new PointerMap, so every page got a new fragment id even when the migration did not change it. That leaves the fragment cache cold and rewrites every fragment on the first read after a deploy. Capture the original pointers before realizing, reattach the unchanged positions after migrating (same value comparison file-gc already uses), persist the reattached file and return the realized one: the read contract is plain data. Read-only connections skip the persist and the reattach. A migration that adds objects-map skips the reattach so the pages get wrapped. Move the three helpers to fdata so file-gc and the migration path share them, and cover the path with a real 0031 migration test: the unchanged page keeps its id, the changed page gets a new one, the caller gets realized data and a second read does not migrate again. Closes #12410 AI-assisted-by: deepseek-v4.1-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!
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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