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tegwick e00c160a43 research: Joplin deep dive (SQLite-local/Markdown-on-sync, interchange-format attach, E2EE content opacity); UC-60/61

Architecturally distinct from the Obsidian/Roam/Notion trio: content is
Markdown, the local store is SQLite, and the sync representation is a
folder of per-item Markdown+metadata files on a backend of choice
(filesystem, WebDAV, Nextcloud, Dropbox, OneDrive, S3, Joplin
Server/Cloud). Two new findings: (1) attach the sync/interchange mirror,
not the app or the SQLite store, offline and app-independent, landing on
INTENT's WebDAV/Nextcloud/S3 backends (UC-60, distinct from native
on-disk store UC-40 and app-files UC-53); (2) E2EE => content opacity, a
proposed twelfth capability spectrum for encrypted-at-rest shards (UC-61).
Also: Joplin is the file-sync-daemon boundary case (attach the mirror as
pages, never re-sync); store-minted page-level :/id links (addressing
spectrum middle); dual surface (plugin host + local Data API on
localhost:41184). Enriched UC-31/36/38/40/51/55. Catalog now 61 UCs.
Architecture for SHARD-WP-0002 T11/T14: interchange-format attach,
content-opacity field, local-REST sub-mode, format-aware file-store
profiles.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

2026-06-14 14:21:31 +02:00

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SCOPE

One-Liner

Git-based Markdown wiki orchestrator and federation layer — early-stage scaffold with intent, research, and specification groundwork; domain model not yet implemented.

Mode Of Operation

Close the gap between this file and INTENT.md by exploring the problem space (research/), reviewing inbound demand (demand/), refining specifications (spec/), and implementing through registered workplans (workplans/). Learnings update both SCOPE and INTENT where necessary.

Current Status

Layer	State
Code	Python package scaffold (`src/shard_wiki/`, smoke tests only)
Intent	`INTENT.md` established; authorization-in-core amendments drafted
Research	yawex prior art; c2 origins; federation concepts; wikiengines overview (`research/260608-/`); XWiki/TWiki/Foswiki deep dives (`research/260613-/`); Xanadu + ZigZag + Roam + Obsidian + Notion + Joplin deep dives & shard-spectrum synthesis (`research/260614-*/`)
Demand	NetKingdom integration asks captured, not yet negotiated
Spec	Architecture blueprint drafted; UseCaseCatalog 61 UCs from research; PRD/TSD scaffolds
Work	`SHARD-WP-0001` active (6 tasks); `SHARD-WP-0002` active (16 tasks: T1–T10 federation + T11–T16 adapter contract)

In Scope (today)

Establishing repository documentation structure and specification groundwork.
Federation design informed by yawex prior art (page resolution, namespaces, derived views, provenance, overlays).
Authorization model design (delegated authentication, core authorization).
Shard adapter contract and wiki page model (to be specified, then implemented).
Git-backed coordination journal for information spaces.
State Hub workplan registration and consistency sync.

Out Of Scope (today)

A standalone wiki engine UI or rendering pipeline.
Authentication, credential storage, or user directory implementation.
Hard-coded editorial, sync, or conflict-resolution policy.
Generic file mirroring independent of wiki-page semantics.
Production deployment, multi-tenant operations, or enterprise IAM rollout.

Boundary Rule

shard-wiki orchestrates wiki-shaped content across heterogeneous shards. It provides mechanisms (federation, projection, overlay, patching, reconciliation); policy (canonical source, conflict preference, access rules) remains explicit and configurable. Identity comes from pluggable providers; authorization decisions live in core.

Current Planning

Design work is tracked in workplans/SHARD-WP-0001-yawex-requirements.md (yawex-derived resolution, namespaces, overlays) and workplans/SHARD-WP-0002-federation-architecture.md (federation architecture, decisions, tradeoffs). Specification outputs land in spec/. Inbound integration asks remain in demand/ until reviewed and promoted into spec or workplans.

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