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## I have read the CONTRIBUTING.md file. YES ## What kind of change does this PR introduce? This PR adds Public Alpha documentation for Multigres, Supabase's multi-node Postgres high-availability integration. It introduces an overview guide, a compatibility stub, Database sidebar navigation, a Features table row, and a "What you get" card grid. ContentListings items can now omit `href` so those cards are not forced to be links. Linear: MUL-452. ~~🚨 **DO NOT MERGE UNTIL THE PUBLIC ALPHA GOES LIVE** 🚨~~ [@jhydra12 OK'ed merging, FYI] ## What is the current behavior? - Linear item: Documentation for Multigres - Production has no Multigres guides. `https://supabase.com/docs/guides/database/multigres` and `https://supabase.com/docs/guides/database/multigres/compatibility` return 404 - The Database sidebar has no Multigres section - The Features status table does not list Multigres - ContentListings items required a link (`href` was mandatory) ## What is the new behavior? - Overview guide at `/docs/guides/database/multigres` covering alpha status, eligibility, enablement, and what is not included - Compatibility stub at `/docs/guides/database/multigres/compatibility` - Database sidebar: Multigres → Overview, Compatibility (after OrioleDB) - Features table: Database / Multigres / `public alpha` - "What you get" renders as three non-link ContentListings cards - `href` is optional on ContentListings items; markdown export renders unlinked entries when it is omitted ## Additional context - Worktree: ~/GitHub/supabase/supabase-worktrees/nikrichers/mul-452-documentation-for-multigres-ready - Branch commits: Initial Multigres docs draft; Edits (cards, copy, MDX comments); merge master; spelling allow-list for Multigres, Vitess, and sharding - Verification: | Check | Result | | --------------------------------------- | --------------- | | Preview overview | 200 | | Preview compatibility | 200 | | Production overview | 404 (expected) | | Production compatibility | 404 (expected) | | `supa-mdx-lint` on changed MDX | pass | | `vitest` `lib/content-listings.test.ts` | pass (21 tests) | ### Proof: Multigres docs pages render, including non-link What you get cards **Verified:** production 404 · Vercel docs preview 200 #### Overview [(PR preview)](https://docs-git-nikrichers-mul-452-documentation-for-m-6f8a59-supabase.vercel.app/docs/guides/database/multigres) <img width="1388" height="2272" alt="image" src="https://github.com/user-attachments/assets/2780f728-07c0-4320-9826-8f6e68df21e6" /> #### Compatibility [(PR preview)](https://docs-git-nikrichers-mul-452-documentation-for-m-6f8a59-supabase.vercel.app/docs/guides/database/multigres/compatibility) <img width="1388" height="852" alt="image" src="https://github.com/user-attachments/assets/1f8f7181-5b7d-4d01-b376-a2eac923626b" /> ### Test plan - [ ] [Production overview](https://supabase.com/docs/guides/database/multigres) (404) vs [preview overview](https://docs-git-nikrichers-mul-452-documentation-for-m-6f8a59-supabase.vercel.app/docs/guides/database/multigres) - [ ] [Production compatibility](https://supabase.com/docs/guides/database/multigres/compatibility) (404) vs [preview compatibility](https://docs-git-nikrichers-mul-452-documentation-for-m-6f8a59-supabase.vercel.app/docs/guides/database/multigres/compatibility) - [ ] Database sidebar shows Multigres → Overview and Compatibility after OrioleDB - [ ] Overview shows Public Alpha caution, three What you get cards (not links), eligibility, and one-way-migration caution - [ ] Compatibility page is a placeholder that links back to the overview - [ ] Features table lists Database / Multigres / `public alpha` - [ ] `supa-mdx-lint` on `apps/docs/content/guides/database/multigres.mdx`, `apps/docs/content/guides/database/multigres/compatibility.mdx`, and `apps/docs/content/guides/getting-started/features.mdx` <!-- This is an auto-generated comment: release notes by coderabbit.ai --> ## Summary by CodeRabbit * **New Features** * Added Multigres documentation covering availability, setup, compatibility, limitations, migration behavior, and external resources. * Added Multigres to database navigation and feature-status listings. * Added an overview of Multigres benefits, including automatic failover, unchanged connection strings, and consensus-backed write durability. * **Improvements** * Content listings now support informational items without links across layouts. * Improved listing rendering and click tracking for linked and non-linked items. * **Documentation** * Added spelling support for Multigres, Vitess, and sharding terminology. <!-- end of auto-generated comment: release notes by coderabbit.ai --> --------- Co-authored-by: Nik Richers <nik@validmind.ai> Co-authored-by: Cursor Agent <cursoragent@cursor.com>