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+# more-perfect-union-palantir-20250417
+
+Single-video YouTube import into the **STOCK** Jellyfin at `tv.s8n.ru`
+(container `jellyfin-stock`), **Education** library
+(`collectionType=movies`, internet providers disabled, fresh path).
+
+First import for channel `More Perfect Union` — creates the channel folder
+under `/media/education/`.
+
+## Provenance
+
+- **Source:** YouTube — `https://www.youtube.com/watch?v=DZ95Gmvg_D4`
+- **Channel:** More Perfect Union
+- **Title:** "I Worked At Palantir: The Tech Company Reshaping Reality"
+- **Upload date:** 2025-04-17
+- **Duration:** 16:31
+- **Tool:** `yt-dlp` on onyx
+- **Format selector:** `bv*[height<=1080][ext=mp4]+ba[ext=m4a]/b[height<=1080][ext=mp4]/bv*[height<=1080]+ba/b[height<=1080]/b` → `--merge-output-format mp4` (source native 1080p AV1+AAC)
+- **Subs:** `--write-subs --sub-langs 'en' --embed-subs --convert-subs srt` — author-provided English subs embedded AND sidecar `.en.srt`
+- **Thumbnail:** `--write-thumbnail --convert-thumbnails jpg` → sidecar `.jpg`, Primary via Local Posters
+- **yt-dlp output template:** `-o "%(title)s — %(upload_date)s.%(ext)s"`
+- **Staging path on onyx:** `/home/admin/staging-jelly/More Perfect Union/`
+
+### Filename normalisation
+
+Raw yt-dlp output (with fullwidth colon substitute):
+`I Worked At Palantir： The Tech Company Reshaping Reality — 20250417.mp4`
+
+Applied playbook §1f rules:
+- Replaced U+FF1A FULLWIDTH COLON (yt-dlp's safe substitute for `:`) with
+  ` - `. Playbook §1f forbids ASCII `:`; the fullwidth fallback is
+  cosmetically ugly and breaks search.
+
+Final filename (per playbook §1d Education pattern — date as suffix, em-dash):
+`I Worked At Palantir - The Tech Company Reshaping Reality — 20250417.mp4`
+
+## Target
+
+- **Server:** `jellyfin-stock` on nullstone, `https://tv.s8n.ru`
+- **Library:** Education (`collectionType=movies`, `EnableInternetProviders=false`)
+- **Library Item ID:** `484cf52875118e03bd7effc72621bec0`
+- **Movie Item ID:** `d9127cf53df5f81565bc217305179962`
+- **Path on host:** `/home/user/media/education/More Perfect Union/I Worked At Palantir - The Tech Company Reshaping Reality — 20250417.mp4`
+
+### Sidecar files
+
+| Kind | File |
+|---|---|
+| Media | `… — 20250417.mp4` (89,599,403 B, ~85 MiB) |
+| Subtitle | `… — 20250417.en.srt` (22,955 B) |
+| Thumbnail | `… — 20250417.jpg` (56,398 B) — Primary via Local Posters |
+
+## Counts
+
+| | Before | After | Delta |
+|---|---:|---:|---:|
+| Education library items | 11 | 12 | +1 |
+| `More Perfect Union/` channel folder | — | created | new channel |
+
+## Stream summary
+
+```
+Container: mp4   Size: 85.5 MiB   Duration: 16:31
+  Video    av1       und  1080p AV1 SDR
+  Audio    aac       eng  English AAC stereo
+  Subtitle mov_text  eng  English — Default — MOV_TEXT (embedded)
+  Subtitle subrip    eng  English — SUBRIP — External (.en.srt)
+```
+
+AV1 1080p source — direct-play in any AV1-capable client (Chromium 100+,
+recent VLC, mpv).
+
+## Subtitle status
+
+- Embedded: yes — one English `mov_text` track from `--embed-subs`.
+- External sidecar: yes — `.en.srt`.
+- Source: channel-published (author-provided) — yt-dlp `--sub-langs 'en'`
+  fetches manual subs only, never auto-CC.
+- Action: none. No WhisperX rebuild needed.
+
+## Verification checks
+
+- [x] Folder/filename canonical (playbook §1d — date suffix, em-dash, no Season dir).
+- [x] No forbidden chars in path.
+- [x] Permissions `user:user` 644 / 755.
+- [x] `Scan Media Library` triggered via `/ScheduledTasks/Running/<id>`,
+      `LastExecutionResult.Status=Completed`.
+- [x] Item resolved as `Type=Movie` in Education library.
+- [x] `ImageTags.Primary` present (Local Posters from sidecar `.jpg`).
+- [x] Embedded + external subtitle streams both registered.
+- [x] `LockData=true` set after manual Name override (see Notes).
+- [ ] Direct-play in mobile / Smart-TV client not exercised.
+
+## Notes / surprises
+
+### JF single-file-in-channel-folder leaked folder name as title
+
+First import for a brand-new channel folder produces exactly **one** file in
+`/media/education/More Perfect Union/`. JF's movie resolver applied the
+folder-name-as-title heuristic and registered the item as
+`Name="More Perfect Union"` — wiping the actual episode title.
+
+This matches the documented pattern in
+`feedback_jellyfin_single_file_channel`: movie-in-own-folder → folder name
+wins. Fix: PUT `/Items/<id>` with corrected `Name` + `LockData=true` so
+future scans don't revert it.
+
+Working fix:
+
+```bash
+TOK=<admin>
+ITEM=d9127cf53df5f81565bc217305179962
+USER_ID=2ad8033c4f97486788d4a4b4915b9c0f
+
+curl -sf -H "X-Emby-Token: $TOK" \
+  "$SERVER_URL/Users/$USER_ID/Items/$ITEM" \
+  | jq '.Name = "I Worked At Palantir - The Tech Company Reshaping Reality — 20250417" | .LockData = true' \
+  | curl -sf -X POST -H "X-Emby-Token: $TOK" -H 'Content-Type: application/json' \
+      --data @- "$SERVER_URL/Items/$ITEM"   # → HTTP 204
+```
+
+Generalises to all single-file YouTube imports: drop a second file into the
+channel folder before scanning, OR accept the post-import `Name`+`LockData`
+override. Once the channel has ≥2 files, JF parses filenames correctly.