# 260614 — TiddlyWiki deep dive

Deep dive on **TiddlyWiki** (TW5): an entire wiki — tiddlers **plus** the app engine — in
**one self-contained HTML file**, the **whole-file write-granularity** anchor of the
synthesis matrix, with a Node.js **file-per-tiddler** (`.tid`) substrate as the git-diffable
alternative, a tiddler/field record model, and **filter expressions** as the native query
language.

- `findings.md` — the single-file model, tiddler data model, dual substrate, filters,
  capability profile, INTENT mapping, UC seed (UC-78), architecture notes for SHARD-WP-0002,
  open questions, sources, traceability.

Catalog yield: UC-78 (attach a single-file self-contained wiki as one shard — parse tiddlers
out, project; write = rewrite the whole file, the coarsest write-granularity anchor).
Enriched UC-35/40/34/52/43. Feeds SHARD-WP-0002 T11 (write-granularity extreme) and T14
(single-file vs file-per-tiddler binding).