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research: Wiki.js deep dive (storage-module engine, DB<->Git Markdown, GraphQL); UC-68/69

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The closest existing engine to shard-wiki's own design: DB-canonical
(Postgres/MySQL/SQLite) but with a pluggable storage-module abstraction
that bidirectionally syncs clean Markdown (+ YAML frontmatter) to Git
(also FS/S3/Azure), each provider acting as backup or source of truth.
Two big findings: (1) the storage-module interface is concrete
adapter-contract prior art alongside Foswiki::Store, and the closer one
(medium = Markdown in Git); (2) the engine-maintained bidirectional Git
mirror is the ideal file-store attach (clean MD + git history) and, being
bidirectional, makes git commit a write path (overlay/patch as a commit,
no API). Also GraphQL API (introspection = capability discovery;
selective fields = efficient projection) and authn-delegated auth modules
+ path-based rule ACL. Added UC-68 (engine-maintained bidirectional Git
mirror, write-by-commit), UC-69 (typed/introspectable API for schema
discovery + selective projection); enriched UC-06/36/38/40/42/57. Catalog
now 69 UCs. Architecture for SHARD-WP-0002 T11/T14: storage-module
abstraction as 2nd adapter-contract prior art, engine-maintained Git
mirror as attach+write surface, GraphQL introspection for capability
discovery.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Bernd Worsch
2026-06-14 17:50:27 +02:00
parent 714eaf6b5a
commit 4543f5dc43
5 changed files with 402 additions and 12 deletions
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@@ -26,4 +26,5 @@ when multiple files or sources are involved. Findings here inform `spec/` and
| 2026-06-14 | `260614-joplin-deep-dive/` | Joplin — SQLite-local/Markdown-on-sync, interchange-format attach, E2EE content opacity; UC-60/61 |
| 2026-06-14 | `260614-logseq-deep-dive/` | Logseq — block-graph on plain Markdown files, in-file block IDs, derived Datalog index; UC-62/63 |
| 2026-06-14 | `260614-localfirst-workspaces-deep-dive/` | Anytype · AFFiNE · AppFlowy — CRDT local-first workspaces (any-sync/Yjs/Yrs), native merge, P2P/E2EE; UC-64/65 |
| 2026-06-14 | `260614-trilium-deep-dive/` | Trilium/TriliumNext — note cloning (DAG hierarchy), attribute inheritance/templates, HTML-native, scripting+ETAPI; UC-66/67 |
| 2026-06-14 | `260614-trilium-deep-dive/` | Trilium/TriliumNext — note cloning (DAG hierarchy), attribute inheritance/templates, HTML-native, scripting+ETAPI; UC-66/67 |
| 2026-06-14 | `260614-wikijs-deep-dive/` | Wiki.js — storage-module engine (DB↔Git Markdown), GraphQL API, pluggable modules ≈ adapter-contract prior art; UC-68/69 |