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

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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>
This commit is contained in:
Bernd Worsch
2026-06-14 14:21:31 +02:00
parent 26bee2cc84
commit e00c160a43
5 changed files with 419 additions and 12 deletions
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@@ -22,4 +22,5 @@ when multiple files or sources are involved. Findings here inform `spec/` and
| 2026-06-14 | `260614-roam-deep-dive/` | Roam Research — block-graph DataScript DB, transclusion, datalog, Roam Depot extension API; UC-50/51/52 |
| 2026-06-14 | `260614-obsidian-deep-dive/` | Obsidian — file-over-app vaults, plugin API, ecosystem-popularity → UC signal; UC-53/54/55/56 |
| 2026-06-14 | `260614-notion-deep-dive/` | Notion — closed block-DB SaaS, external REST API only, database-as-pages; UC-57/58/59 |
| 2026-06-14 | `260614-shard-spectrum-synthesis/` | Synthesis — shard family matrix + eleven capability spectra across nine systems; feeds SHARD-WP-0002 T11–T16 |
| 2026-06-14 | `260614-shard-spectrum-synthesis/` | Synthesis — shard family matrix + eleven capability spectra across nine systems; feeds SHARD-WP-0002 T11–T16 |
| 2026-06-14 | `260614-joplin-deep-dive/` | Joplin — SQLite-local/Markdown-on-sync, interchange-format attach, E2EE content opacity; UC-60/61 |