serverAppConfigs/serverAppConfigs-docs/Dankserver/Media Relayout.md

type, title, description, tags, timestamp

type	title	description	tags	timestamp
reference	Media Relayout	Census, plan and apply the movie, TV, music and audiobook libraries: the gates, the refusals, the rollback.	dankserver media-server jellyfin plex procedure	2026-10-30T00:00:00Z

Media Relayout

The movie library on Entropy Volume arrived as release folders — Some.Movie.2019.1080p.WiKiTaLx.x265-FOO/ with the video inside named after the release. Jellyfin matches a movie by folder and file name, so the release noise cost posters, extras and versions. These scripts turn that library into the shape its media server reads — the movies, the TV packs, the TV that turns up in the movie share, the music library, and the audiobooks, whose only reader is Plex — and nothing else in the repo touches a media file.

Script	Touches media?	Output
scripts/media-census.py	reads headers and the servers' own DBs, never writes	enum, probed, and one authority TSV per library
scripts/media-plan.py	no — TSVs in, TSVs out	the plan + the exception report
scripts/media-apply.py	renames, never copies; sweeps only what a run emptied	the moves, plus a journal
scripts/media-tv.py	no — TSV out	a plan that moves TV into the TV library
scripts/media-shows.py	no — TSV out	a plan that re-files the TV library itself
scripts/media-music.py	no — TSV out	a plan that re-files the music library by its tags
scripts/media-audiobooks.py	no — TSV out	a plan that re-files the audiobooks by the book Plex matched

The seams are tests/media_relayout.bats, tests/media_shows.bats, tests/media_music.bats and tests/media_audiobooks.bats; the movie and TV target contracts are quoted from jellyfin.org/docs/general/server/media/movies in media-plan.py's docstring.

Procedure

Run the census on the machine that mounts the library. probe is the slow step (a header read per container) and is niced — it is safe beside a live service because it never competes for the GPU and never writes inside the library.

C=scripts/media-census.py
$C enumerate --root /mnt/entropy/Movies --out /tmp/media-enum.tsv
$C probe     --enum /tmp/media-enum.tsv --out /tmp/media-probed.tsv --jobs 6
$C plex      --root /mnt/entropy/Movies --out /tmp/plex-movies.tsv

plex reads the Plex metadata cache (--db defaults to the path the Plex container bind-mounts at /var/lib/plexmediaserver) with mode=ro&immutable=1: a live server is never locked or written.

Then plan — this reads only the three TSVs, so it costs seconds and can run anywhere, including a laptop:

scripts/media-plan.py --root /mnt/entropy/Movies \
    --enum /tmp/media-enum.tsv --probed /tmp/media-probed.tsv \
    --plex /tmp/plex-movies.tsv --out /tmp/jf-plan.tsv --exceptions /tmp/jf-exceptions.txt

Read /tmp/jf-exceptions.txt before applying. It is not a log: every line is a file the plan could not name a film for, a pile that needs a README, or a collision it refused. The printed gate lines are the go/no-go: problems, bad-names, occupied, double-claim, left-unmoved must all be 0 and unplanned=0 must appear in the report. Any non-zero number means a file that would be filed wrong, and the plan is not run until it is understood.

scripts/media-apply.py apply    --plan /tmp/jf-plan.tsv --root /mnt/entropy/Movies   # dry, writes nothing
scripts/media-apply.py apply    --plan /tmp/jf-plan.tsv --root /mnt/entropy/Movies --apply
scripts/media-apply.py verify   --plan /tmp/jf-plan.tsv --journal /mnt/entropy/media-relayout.jsonl
scripts/media-apply.py sweep    --journal /mnt/entropy/media-relayout.jsonl --root /mnt/entropy/Movies   # dry
scripts/media-apply.py sweep    --journal /mnt/entropy/media-relayout.jsonl --root /mnt/entropy/Movies --apply
scripts/media-apply.py rollback --journal /mnt/entropy/media-relayout.jsonl --root /mnt/entropy/Movies --apply

An apply also leaves the release folders it emptied standing where they were — hundreds of them at the library root — which is what sweep removes, dry-run first, from the same journal.

After it lands, both servers need a scan or the change is invisible.

# Run this from the host shell through `podman exec`, never from a neighbour
# container: Plex's HTTPD closes without a single byte on any request that
# arrives from another container's netns (10.89.x.x reads as "empty reply", not
# as a 401). The token rides stdin, never argv, where any process on the host
# could read it out of /proc/<pid>/cmdline.
umask 077
podman exec plex sh -c "sed -n 's/.*PlexOnlineToken=\"\\([^\"]*\\)\".*/\\1/p' \
  '/config/Library/Application Support/Plex Media Server/Preferences.xml'" >/tmp/px.tok
podman exec -i plex sh -c 'read -r T
  for k in $(curl -s -H "X-Plex-Token: $T" -H "Accept: application/json" \
      http://127.0.0.1:32400/library/sections | grep -o "\"key\":\"[0-9]*\"" | cut -d\" -f4); do
    curl -s -o /dev/null -w "plex section $k: %{http_code}\n" -X POST \
      -H "X-Plex-Token: $T" "http://127.0.0.1:32400/library/sections/$k/refresh"
  done' </tmp/px.tok

Jellyfin's scan key lives in ~/.config/secrets/jellyfin (mode 600; the same value is JELLYFIN_API_KEY in the ignored dankserver/.env). It rides a mode-600 curl config, never a header argument, and it must use the MediaBrowser form — Jellyfin 12.4 refuses a bare X-Emby-Token for any key:

umask 077
{ printf 'header = "Authorization: MediaBrowser Token=\\"%s\\""\n' \
    "$(cat ~/.config/secrets/jellyfin)"
  echo 'url = "http://127.0.0.1:8096/Library/Refresh"'
  echo 'request = "POST"'; } >/tmp/jf.hdr
curl -s -K /tmp/jf.hdr -o /dev/null -w "jellyfin scan: %{http_code}\n"
shred -u /tmp/jf.hdr

204 is acceptance; the scan then runs on the server's own schedule.

Proving the move landed

A scan answers 204 whether or not it finds anything, so proof is the journal replayed against both servers' own tables: every move row has a row at its dst, and zero rows still name its src. There is no sqlite3 binary on these hosts and none inside either container — read the DBs with the host python3 and mode=ro&immutable=1, which takes no lock while the server runs.

	path	path column	shape
Jellyfin	/home/dank/Containers/jellyfin/config/data/jellyfin.db	BaseItems.Path	one BaseItems table; Type holds the .NET class (…Entities.TV.Episode). There is no MediaItems/TypedItems.
Plex	/var/lib/plexmediaserver/Library/Application Support/Plex Media Server/Plug-in Support/Databases/com.plexapp.plugins.library.db	media_parts.file	join media_parts → media_items → metadata_items; filter deleted_at is null on both or deleted scans pollute the count.

Jellyfin stores container-side paths. The share binds /mnt/entropy → /data in that container, so a journal src of /mnt/entropy/TVShows/… is stored as /data/TVShows/…. Plex is bound at the same path it has on the host, so its rows match the journal verbatim.

Three doors that look right and are not: GET /search?query= matches metadata titles, never file paths; ?path= on /library/sections/N/all makes Plex's HTTPD close without a single byte; and the same HTTPD drops requests that carry no Accept and client-identifier header (see the scan block above for the form that works).

TV in the movie library

A box set that arrives in the movie share stays there until someone moves it: media-plan.py refuses to file TV and parks each series in _TV needs a TV library - <series>. scripts/media-tv.py is the mover. It walks the movie library itself (no census needed), groups episode-shaped names by series, and writes a plan in the executor's own format:

scripts/media-tv.py --root /mnt/entropy/Movies --library /mnt/entropy/TVShows \
    --out /mnt/entropy/media-tv-plan.tsv
scripts/media-apply.py apply --plan /mnt/entropy/media-tv-plan.tsv --root /mnt/entropy
scripts/media-apply.py apply --plan /mnt/entropy/media-tv-plan.tsv --root /mnt/entropy \
    --journal /mnt/entropy/media-relayout-tv.jsonl --apply
scripts/media-apply.py sweep --journal /mnt/entropy/media-relayout-tv.jsonl \
    --root /mnt/entropy --apply

The shape it writes is the one both matchers read — Monk (2002)/Season 05/ Monk - S05E03 - Mr. Monk and the Big Game.mkv — keeping the file's own name, because the publisher's spelling beats a re-derivation, with the year taken from the box-set folder. What it refuses it prints and leaves alone:

• fewer than --min (5) files under one series name: one file named Part 2 is a film, not a series;
• an episode whose name states no season number — no invented Season 01;
• a destination two files both claim: the executor refuses the whole plan before its first rename, and only Frank decides which copy is the keeper.
• an episode the destination library already holds at the same byte count. The movie share carried a second copy of the whole Monk box set — 124 episodes both sides, the same episode list, every byte count identical, 31.5 GiB each way, and head+tail blake2b identical on a 6-episode sample. The mover leaves such a series in place and says so; a duplicate is deleted or kept by Frank, never copied into one library by a tool.

A sidecar that shares an episode's own name (.srt, .nfo) moves with it.

Below the threshold the mover prints and leaves, so a lone downloaded episode of a real show stays in the movie library on purpose — six did on 2026-10-30. Filing one by hand is the same executor on a hand-written plan and the same journal; the trap is the series year. Read it from the file's own name or the folder it owns, never from the title whose bonus folder it happens to be parked in — The Cleveland Show S03E07 inside Die Hard (1988)/extras/ is not a 1988 show. A name whose marker is Part 2 is a film and stays put.

The TV library's own relayout

/mnt/entropy/TVShows is scene packs rather than a library, and Jellyfin has already matched and numbered most of it. scripts/media-shows.py re-files that library into the same shape, and it never guesses: every series name and every episode number it writes traces to an authority, and what has none is parked for a human to read.

# 1. The authority: Jellyfin's own matched rows (the DB opens read-only).
python3 scripts/media-census.py jellyfin --root /mnt/entropy/TVShows \
    --out /tmp/tv_titles.tsv
# 2. What is on disk (stat only), and the runtimes the film arm needs.
python3 scripts/media-census.py enumerate --root /mnt/entropy/TVShows \
    --out /tmp/tv_enum.tsv
python3 scripts/media-census.py probe --root /mnt/entropy/TVShows \
    --enum /tmp/tv_enum.tsv --jobs 6 --out /tmp/tv_probed.tsv
#    The probe is the slow step: ffprobe reads both ends of every file.
# 3. The plan. --tmdb needs TMDB_API_KEY; without it a series no provider dated
#    is simply named without a year, which Jellyfin accepts.
python3 scripts/media-shows.py --root /mnt/entropy/TVShows --enum /tmp/tv_enum.tsv \
    --titles /tmp/tv_titles.tsv --probed /tmp/tv_probed.tsv --out /mnt/entropy/media-relayout-shows-plan.tsv \
    --exceptions /mnt/entropy/media-relayout-shows-exceptions.txt
# 4. Read the exceptions file FIRST — it is the review, not a log. Same executor
#    as above, but on this arm's OWN journal: a shared journal cannot be unwound.
scripts/media-apply.py apply --plan /mnt/entropy/media-relayout-shows-plan.tsv \
    --root /mnt/entropy --journal /mnt/entropy/media-relayout-shows.jsonl --apply

Evidence, strongest first — the order the planner believes things:

• the episode marker the file's own name states (S01E02-E03, 1x04);
• the Season NN folder it sits in and the number its name leads with inside it: Season 19/01 Charles Barkley, Nirvana.avi is S19E01;
• the provider row: identity (the series name and its year), and the numbering of a file whose own name says nothing;
• a bonus folder anywhere above the file, or Jellyfin's ExtraType → the series' canonical extra folder;
• a runtime over SHORT_MAX makes it film-shaped, and it leaves for --movies only when a movie provider names it — otherwise it parks.

Two refusals carry the design, and a dry run on the real library found both:

• Folders resolve a series; they never invent one. A folder's words may resolve a file to a series a provider has already named — (CBB) Tengen Toppa Gurren Lagann - The Complete Series (BD 1080p) names the registered Tengen Toppa Gurren Lagann — but a bonus subfolder is not a show. An early run made …/03. Extra/01. NCOP/NCOP 01.mkv into a root series called 01 NCOP.
• A scraped row does not outrank the filesystem. Jellyfin numbers multi-season packs badly: every file under SNL 16-20/Season 16..19 carries season 16 episode 20, and one Gundam row says season 2004. The folder, then the file's own leading number, win; a row that still insists on season 1989 parks its file instead of creating Season 1989.

The provider's name is copied verbatim, warts included: Jellyfin carries a Series named Black Clover 001 (92 episodes, no year) because it matched a pack off a filename. Renaming a show is Jellyfin's work — a folder rename never touches its provider ids — so the mover keeps the name it is handed and strips only the pack index a release leads with (4a. Seed DESTINY → Seed DESTINY).

The music library's own relayout

/mnt/entropy/Music is rips and discography packs, and Jellyfin has matched and tagged almost all of it. scripts/media-music.py re-files it into the shape Jellyfin's music scanner reads —

Music/<album artist>/<Album> (<year>)/NN - <Title>.ext

— and the authority is the tag row of the track, never the name the ripper gave the file.

# 1. The authority: Jellyfin's audio rows, one per track, with the album and
#    artist ids its own database carries (the DB opens read-only).
python3 scripts/media-census.py music --root /mnt/entropy/Music \
    --out /tmp/music_rows.tsv
# 2. What is on disk (stat only).
python3 scripts/media-census.py enumerate --root /mnt/entropy/Music \
    --out /tmp/music_enum.tsv
# 3. The plan.
python3 scripts/media-music.py --root /mnt/entropy/Music --enum /tmp/music_enum.tsv \
    --rows /tmp/music_rows.tsv --out /tmp/music_plan.tsv \
    --exceptions /tmp/music_exceptions.txt
# 4. Read the exceptions file FIRST — it is the review, not a log. Then the same
#    executor, journal and rollback as above, on its own journal.
scripts/media-apply.py apply --plan /tmp/music_plan.tsv --root /mnt/entropy \
    --journal /mnt/entropy/media-relayout-music.jsonl --apply

The group is what the tags assert, not where the files sit: (album-artist tag, album, year). One album arrives as three disc folders and as two copies of one rip, and one MusicBrainz release group is one album. A compilation is one album whose tracks name many performers, so it files once under Various Artists: keying on the performer would file one album once per artist. Two different album-artist tags on one album name are two albums, which is what Jellyfin's two album items say.

What it refuses:

+- A sidecar is placed by the audio around it, never by its own name. A .lrc, .txt or picture that shares a track's stem follows that track and takes the name the track now has, or Jellyfin cannot find it; anything else goes to the album its own folder was placed in, or to the folder whose discs sit one level below it. A folder whose audio belongs to two albums parks its sidecar rather than guessing. +- An image album keeps its name. A folder holding one audio file and a .cue is a whole album in one file; numbering it 01 - … tells Jellyfin to index it as one track. +- A video container parks, because Jellyfin will not index it as music and a rename to .m4a would claim it is; audio no provider row names parks too, because unmatched audio is a tagging job, not a renaming job.

The plan applies on 2026-10-31 through /mnt/entropy/media-relayout-music.jsonl; its rollback is that journal run through media-apply.py rollback --apply. ONE writer at a time on this array: two rename passes race, and neither journal tells.

The audiobook library's own relayout

/mnt/entropy/Audiobooks is the one library here that Jellyfin does not read at all — its music scanner has no audiobook concept — while Plex indexes all of it as Artist → Album → Track: the album is the BOOK, that book's single artist is the NARRATOR, both matched out of the files' own tags. Today one book is split across … [Part 1], … [Part 2] folders three or four deep inside a collection pack, so a scan serves three quarters of a novel; scripts/media-audiobooks.py re-files the tree so the property both servers' book scanners assume is true —

Audiobooks/<Narrator>/<Book> (<year>)/<the file keeps its own name>

# 1. The authority: Plex's chapter rows for this root (the DB opens read-only).
python3 scripts/media-census.py audiobooks --root /mnt/entropy/Audiobooks \
    --out /tmp/ab_rows.tsv
# 2. What is on disk (stat only).
python3 scripts/media-census.py enumerate --root /mnt/entropy/Audiobooks \
    --out /tmp/ab_enum.tsv
# 3. The plan.
python3 scripts/media-audiobooks.py --root /mnt/entropy/Audiobooks \
    --enum /tmp/ab_enum.tsv --rows /tmp/ab_rows.tsv --out /tmp/ab_plan.tsv \
    --exceptions /tmp/ab_exceptions.txt
# 4. Read the exceptions file FIRST. Then the same executor, journal and rollback
#    as above, on its own journal, and refresh the Plex section as in step 5 of
#    the movie Procedure — from inside the container, never over the host port.
scripts/media-apply.py apply --plan /tmp/ab_plan.tsv --root /mnt/entropy \
    --journal /mnt/entropy/media-relayout-audiobooks.jsonl --apply

The group is the identity Plex asserts in its own database — (narrator, book, year) — so one book arriving in four part folders becomes one folder, and a 1965 and a 2020 recording that share a title stay two books.

Two laws are forced by what the rows actually hold:

+- A chapter is never renumbered. Most books contain chapters whose index Plex does not know, so a number written into a name would be invented — and it would buy nothing, because both servers order playback by the embedded track tag, not by the file name. A wrong number in a name is the number a human later trusts. Fix order in the tags: a Plex scan re-reads tags and never renames a file. +- The shelf is the narrator, not the author. Every book has exactly one artist row and it is the narrator; the author survives only inside some album titles (Kryptos by Graham McNeill) and in no column Plex stores, so deriving it would mean parsing titles where a ripper wrote one and inventing it everywhere else. The author stays visible in the folder name Plex itself shows.

What it refuses, the music arm's list with one addition: a video container, audio no chapter row names, and a loose file in a folder holding two books all park under _unsorted with the path they have today — and so does a chapter whose row names no book or no narrator: a placeholder ([Unknown Album], [Unknown Artist]) that unrelated books share, or a chapter number mistagged as the artist (0.4). Various Artists is not a placeholder — that is a multi-cast read.

The plan stands reviewed at /mnt/entropy/media-relayout-audiobooks-plan.tsv (55,114 moves, 7,764 parked, executor preflight refused nothing); it applies on its own journal, behind the music writer, and then refreshes the Plex section.

Laws

• A moved file is a 404 in Plex until its section is rescanned. The database keeps the release-folder path, so playback fails Couldn't find the file to stream while the scanner works through the section. Never read such a 404 as a lost file: the file is where the journal says it is.

• Plex's matched title outranks the filename, and a Plex year of 0 means indexed but never matched — trusting it named folders Title (0), which is a Jellyfin item with no year, no poster and no identity. A year that is not a plausible year is no information.

• <>:"/\|?* never survive a name. Plex's own title for V/H/S/2 is V/H/S/2; kept verbatim it became Movies/V/H/S/2 (2013)/ — a tree five levels deep that neither matcher reads as a movie.

• A folder inside a movie's folder is bonus territory even when its name is misspelled. Saboteur (1942)/Exrtas/Saboteur - A Closer Look is a typo for Extras; the vocabulary rule never fired, the featurette became a movie folder, and its words then out-scored the real film and drew that box set's other extras into it. The rule that replaced it needs no metadata: the folder holding the longest film owns the shorter video filed under it, unless that file's own name carries a different year — which is another film speaking.

• Matching words are split on everything that is not a letter or a digit. Splitting on separators but not on / left tokens like (1960)/extras that no other name could ever agree with, so a film could not be found by the folder holding it, and extras drifted into a neighbour. A bare number counts only when it could be a release year, so 1080 and 2160 never pose as agreement between two names.

• Compare two media libraries with the series engine, never a path substring. Filtering paths for monk also returns Monkey Dust, and letting whichever file a walk happens to reach first stand for an episode paired two libraries into a fake duplicate — the same sloppiness pointed the other way deletes a file that is unique. The comparison is media-titles.ep_of on both sides: series, season, episode, bytes, and a hash before anything is trashed.

• A deletion is staged on the item's own filesystem. The trash rule names ~/.AGENTTRASH, but /home and /mnt/entropy are different devices: a 31 GiB stage there is a copy rather than a rename, it has to fit in the 187 GiB of free space, and rename(2) refuses it anyway. Trash goes beside the item — /mnt/entropy/.AGENTTRASH/<date>-<topic>/ — so it costs one inode change and rolls back exactly like the move that made it.

• A Jellyfin 401 is the header, not the key. 12.4 authenticates only Authorization: MediaBrowser Token="…" and refuses a bare X-Emby-Token for every key, valid or not. This page carried "no credential on this box can trigger a scan, the two Seerr keys answer 401" for weeks because of that header — the keys were innocent. Before believing a 401, prove the key against the server's own table: select count(*) from ApiKeys where AccessToken = ? on jellyfin.db opened mode=ro&immutable=1.

• A scan that must see a new folder has to be recursive. POST /Library/Refresh is the incremental pass, and inotify does not cross a rootless podman bind, so folders created on the host stay invisible to it. The move is POST /Items/{id}/Refresh?Recursive=true (204) per library, the id from GET /Library/VirtualFolders — its field is ItemId, not Id — and that same record's RefreshStatus is the progress read.

• A file whose name carries no words is bonus material, not a folder. .Extra 1 ( 1H 27min multisub ).mkv parses to 1; a movie folder named 1 is not a movie. It becomes a review line telling a human to name the file.

• The executor renames and nothing else. rename(2) cannot cross a filesystem, so a plan that would is refused rather than silently copying tens of terabytes.

• The journal is a write-ahead log: the intent is fsynced before the rename. An interrupted run therefore leaves only two states — an intent whose move happened, and an intent whose move never ran — and the next run finishes the job without moving anything twice. A file that moved with no journal line did not move through this tool, and the tool refuses to guess on its behalf.

• The journal lives BESIDE the library root, never inside it (default: media-relayout.jsonl next to the root): a log inside the library is a file Jellyfin indexes.

• Refusals are all-or-nothing. An occupied target, a vanished source or a duplicate destination stops the run before the first rename, so the operator fixes one thing and re-runs instead of untangling a half-applied plan. --force relaxes only the opinion guards; it never permits overwriting.

• A sweep deletes only what the journal proves the run emptied. A folder is eligible when a journalled file moved out of it or out of something under it, it now holds nothing but empty directories, no journalled destination lives beneath it, and it is not a folder the run created. A folder nobody moved — someone's placeholder — cannot be selected at all, and a symlink anywhere inside disqualifies the subtree, because the thing behind a link is not this tool's to delete. Every removal is journalled as rmdir and rollback recreates the folder, so the sweep is undone by the same command as the moves. Proof carries downward: inside a folder the journal proves emptied, every empty directory goes with it. A release's Screens/ or Sample/ is never a move source itself, so 146 of them held their emptied parents on disk after the first sweep. A failed rmdir is not a removal: only a folder that is really gone leaves scope, so the next sweep finishes what a permission problem stopped.

• An episode-shaped name marks a SERIES, not a film — and the series is the name BEFORE the marker. Monk - S05E03 - Mr. Monk and the Big Game is series Monk. Keyed on the whole title instead, every episode became a group of one and never reached the five-episode size that calls something a series, so a box set was filed as 124 movies in 124 folders. The threshold still earns its keep: a lone film named Part 2 stays a film. Episodes of a series are parked in _TV needs a TV library - <series> for a human to move to a TV source — the movie tool never files TV.

• One journal is one undo. The TV move runs on its own journal, and with --root set to the share that holds BOTH libraries: the executor refuses any path outside --root, and a journal shared with the movie relayout would undo both runs when only one of them is wanted.

• Sidecar metadata does not follow a rename, because it lives on another filesystem. The media servers write .nfo and artwork through the Media Metadata View (NVMe upper layer); this tool moves bytes on the raw array path. After any sweep or TV move, run scripts/media-view.sh reap, then the same command with --apply: the sidecars left at the old coordinates become ghost folders — artwork and an .nfo with no video — that both servers browse and report as content.

• Nothing deletes through the metadata view. A delete there writes an overlayfs whiteout in the upper layer, which hides the array's copy without removing it; the file returns when the view is unmounted. Deletions in this pipeline happen on the raw path only, which is what the journal can undo.

• The music album key is case-folded; the folder name is not. Master Of Puppets and Master of Puppets are one album to the matcher, so the spelling that reaches the folder is the one most tracks carry. Taking it from whichever row sorted first made the folder name depend on row order, and re-planning an already-filed library renamed albums that were already in place.

• An occupied path is never a destination, not even when its occupant is scheduled to leave: the executor refuses an occupied target, so a plan that aims at one fails after the renames that were supposed to clear it. A file standing where the contract puts it is a keep, and a file already carrying a collision suffix keeps that suffix — otherwise the plan is a shuffle, not a fixed point, and a re-run moves albums that are already right.

• media-census.py music reads the BaseItemProviders table, not the item's JSON. This Jellyfin build carries an empty ProviderIds inside BaseItems.Data for albums, so a census that parses the JSON finds no MusicBrainz or Spotify id on any album and reads as "the library is untagged".

Rollback

One command, from the journal of the run: media-apply.py rollback --journal …/media-relayout.jsonl --apply. It recreates any folder a sweep removed, restores every source path, removes only the folders that run created and that are now empty, and refuses everything if any moved file cannot be accounted for. A rolled-back journal refuses to roll back twice.

See Also

Jellyfin, Plex, Media Metadata View, Entropy Volume, Testing Policy, Storage Policy

Citations

• Jellyfin Movie documentation — folder/file naming, extras subfolders, Movie (2013) - 216p.mkv version and - 4K.mkv handling: https://jellyfin.org/docs/general/server/media/movies