* ✨ Add Malli schema for storage metadata with dual decode Phase 1 of the storage_object.metadata migration: reads accept both Transit and plain JSON (sniffed by the marker) and always return the normalized shape; writes validate against a closed per-bucket Malli schema and still serialize as Transit unless the new :storage-metadata-as-json config flag is set. The 0155 migration normalizes existing rows inside Transit (reference to bucket, default bucket, drop of chunk leftovers) and is idempotent; large instances should fake it and run the batched script instead. AI-assisted-by: muse-spark-1.3-contributor * ♻️ Address review findings on storage metadata Phase 1 Collapse the dead :reference leg of the gc-touched bucket fallback (the decode always sets :bucket on non-nil metadata, so it is only reachable with a NULL column) and fix its comment. Pin the write flag off in the transit-assuming metadata tests so the suite proves the same with the flag set, and add coverage for the flag rollback contract, JSON hash survival, NULL metadata in gc-touched, and the 0155 normalization statements. AI-assisted-by: muse-spark-1.3-contributor * ♻️ Backfill NULLs, canonical buckets, comment fix Backfill NULL metadata columns in 0155 via coalesce (the key-missing rule already matches them), derive valid-buckets from the Malli schema dispatch entries so the list lives in one place, and correct the lookup-bucket fallback comment to NULL columns. AI-assisted-by: muse-spark-1.3-contributor * ♻️ Defer corrupt metadata rows in storage gc-touched Decode touched rows individually so one non-map metadata value no longer aborts the whole chunk: corrupt rows are logged and deferred exactly one day in the same transaction, keeping their metadata intact for a later repair, while healthy rows process normally. AI-assisted-by: muse-spark-1.3-contributor * ♻️ Address storage metadata phase 1 review findings Address the review findings on the storage metadata phase 1 branch: - Fix put-and-delete-object: it stored the object with ::sto/expired-at, so the row was already deleted and del-object! returned false. Add delete-expired-object-returns-false to keep the expired-delete case covered. - Cache the Malli decoder and encoder per process. Building them compiles the closed multi-dispatch schema, and decode-metadata runs on every read path (get-object, dedup probes, GC batches). - Catch Exception instead of Throwable in try-decode-row so JVM Errors are not deferred as corrupt metadata. - Add penpot_storage_gc_poison_total, emitted from storage-gc-touched; wire ::mtx/metrics into its handler. - Anchor the encoding sniff to the start of the document so a plain JSON value that begins with a Transit-looking prefix is not read as Transit. - Cover every bucket on both encodings, a JSON roundtrip through the jsonb column, nil metadata, the canonical bucket set and a poison-only GC chunk. - Rename private check-metadata! to check-metadata. AI-assisted-by: deepseek-v4.1-flash * ♻️ Simplify the storage metadata schema to a single map Replace the per-bucket :multi dispatch with a single closed map: the bucket is validated with ::sm/one-of over metadata-buckets (now a plain set) and the remaining keys are typed optional fields. Per-bucket enforcement shrinks to a one-line :fn guard requiring :file-id and :id for file-data, whose ids the GC reads to resolve references. - Drop the dead (sm/register! ::metadata ...): nothing references the schema by keyword. - Define tempfile-bucket and upload-session-bucket in the schema and alias them from app.storage, removing duplicated literals. - Keep content-type required and the map closed, so an unknown bucket or key still fails fast on write. AI-assisted-by: deepseek-v4.1-flash * ♻️ Drop input coercion from encode-metadata encode-metadata no longer runs the json-transformer decoder before validation. On the write path its only effect was coercing string UUIDs to UUID, and every producer already passes native UUIDs (the RPC profile-id, uuid/random, or binfile ids decoded as ::sm/uuid). Reads keep decoding, so stored Transit or JSON values still come back as native types. - Replace encode-accepts-string-uuids with encode-rejects-string-uuids, pinning the stricter contract. - Pass native UUIDs in encode-writes-plain-json-with-flag. AI-assisted-by: deepseek-v4.1-flash * 📚 Document each statement in the storage metadata migration Move the per-statement rules out of the header and add a comment to each UPDATE explaining what it does: drop chunk leftovers, promote the legacy "~:reference" to "~:bucket", drop residual "~:reference", and backfill the default bucket. The header keeps the scope, the encoding note, the `->` vs `?` note and the large-instance warning. AI-assisted-by: deepseek-v4.1-flash * 📚 Unwrap wrapped lines in the backend storage memory One line per bullet or paragraph, as mem:memory-maintenance requires. Only formatting; no content change. AI-assisted-by: deepseek-v4.1-flash * ♻️ Defer storage GC poison rows in their own transaction process-chunk! no longer takes poison-ids; it only processes the healthy chunk. The deferral moves to defer-poison! and process-touched! runs it in its own transaction, separate from the freeze/delete work. The loop still drains while there is chunk or poison, so a batch made only of poison rows does not leave healthy rows behind the LIMIT 10 waiting for the next run. Add a regression test: ten poison rows plus one healthy row with a later touched_at are all handled in the same run. AI-assisted-by: deepseek-v4.1-flash * ♻️ Declare per-bucket metadata requirements in one map Replace the file-data-specific predicate with bucket-requirements, a map from bucket to the extra keys it must carry. metadata-buckets is derived from its keys and a single generic :fn enforces presence, so a new bucket and its contract are one entry. organization now requires :organization-id; file-data keeps requiring :file-id and :id. Update the http-assets test helper to set organization-id for its organization objects. AI-assisted-by: deepseek-v4.1-flash * ♻️ Drop the ! suffix from storage GC helpers Rename the internal helpers in app.storage.gc-touched (process-chunk, defer-poison, mark-freeze-in-bulk, ...) to drop the trailing !. AI-assisted-by: deepseek-v4.1-flash * ♻️ Drop the ! suffix from storage GC deleted helpers Rename the internal helpers in app.storage.gc-deleted (clean-deleted, delete-sobjects, delete-give-up, ...) to drop the trailing !. AI-assisted-by: deepseek-v4.1-flash * 🐛 Fix dedup lookup for JSON-encoded storage metadata get-database-object-by-hash only matched the Transit keys, so once the :storage-metadata-as-json flag wrote plain JSON rows the dedup stopped finding them and duplicated blobs. Match both encodings with a UNION ALL of two indexable branches. - Add migration 0156 with the plain-key dedup index; the legacy 0068 index stays until Transit support is removed. - Cover it with a JSON dedup test and a Transit -> JSON cross test. 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!
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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- 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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License
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Copyright (c) KALEIDOS SUBSIDIARY SL
Penpot is a Kaleidos’ open source project