docker: dedicated musician entrypoint + fuller runbook section

- docker/entrypoint.musician.sh: on a fresh /data volume, create the
  managed playlists and touch radio_log.log/persistence.log empty so the
  track-forwarding thread waits instead of crashing when Liquidsoap runs
  elsewhere; never overwrites preserved files
- Dockerfile.musician: wire the entrypoint, default CONJURER_MUSICIAN_BASE
  =/data (persist playlists/logs) and CONJURER_STREAM_TEMPLATE=/app/stream.html;
  declare the /data volume
- DOCKER_PROXMOX.md: expand the musician section (two volumes, preserving
  existing playlists, radio-log coupling, stream template)

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

.dockerignore

@@ -0,0 +1,17 @@
+# Keep build contexts lean. Component dirs (conjurer_librarian, conjurer_musician)
+# are intentionally NOT ignored — their images copy them from this same context.
+.git
+.github
+.trunk
+.vscode
+**/__pycache__/
+*.pyc
+*.pyo
+*.log
+*.mp3
+docs/
+tests/
+conftest.py
+pytest.ini
+docker/env/*.env
+secrets/

conjurer_librarian/scrape_bot.py

@@ -4,6 +4,7 @@ This module contains the code for the scrape bot.
 
 import json
 import logging
+import os
 import random
 import re
 import time
@@ -15,9 +16,9 @@ from urllib.request import urlopen
 from requests import ConnectionError as RequestsConnectionError
 from requests import ConnectTimeout, Timeout
 
-SCR_DATABASE_PATH = r"C:\\Database\\chunks\\"
+SCR_DATABASE_PATH = os.getenv("CONJURER_LIBRARIAN_DB_PATH", r"C:\\Database\\chunks\\")
-SCR_FILENAME = "40_chunk.txt"
+SCR_FILENAME = os.getenv("CONJURER_LIBRARIAN_SCRAPE_CHUNK", "40_chunk.txt")
-SCR_ENCODING = "utf-8"
+SCR_ENCODING = os.getenv("CONJURER_ENCODING", "utf-8")
 
 WORK_Q = Queue()
 random.seed()

conjurer_librarian/search_bot.py

@@ -19,22 +19,20 @@ Global Variables:
 """
 
 # TODO: Wpiemdolić to wszystko w klasę z loggerem przysłanym z góry
+import os
 from queue import Empty, Queue
 from threading import Thread
 import time
 q = Queue()
 #TODO: Count number of lines in files and print to approximate on which part of the file search is
 
-# DATA FOR TEST ONLY
+# Deployment data is environment-overridable so the local DOI database can live
-# MAXTHREADS = 5
+# on a mounted volume (Docker/Linux) instead of the hardcoded Windows path.
-# DATABASE_PATH = r'C:\\Database\\chunks_1\\'
+MAXTHREADS = int(os.getenv("CONJURER_LIBRARIAN_MAXTHREADS", "41"))
+DATABASE_PATH = os.getenv("CONJURER_LIBRARIAN_DB_PATH", r"C:\\Database\\chunks\\")
 
-# DEPLOYMENT DATA
+ENCODING = os.getenv("CONJURER_ENCODING", "utf-8")
-MAXTHREADS = 41
+CHUNK = os.getenv("CONJURER_LIBRARIAN_CHUNK", "_chunk.txt")
-DATABASE_PATH = r"C:\\Database\\chunks\\"
-
-ENCODING = "utf-8"
-CHUNK = "_chunk.txt"
 _sentinel = object()
 WORK_Q_SIZE = 35500000
 

constants.py

@@ -158,6 +158,23 @@ else:
 # Values stay as plain strings so existing ``PATH + filename`` concatenation in
 # the command modules keeps working unchanged.
 
+# Container-friendly shortcut: point CONJURER_DATA_DIR at a single mounted
+# volume and every writable data file/dir is rooted under it. The per-variable
+# CONJURER_* overrides below still take precedence, so granular control remains
+# possible and the native (Pi) deployment is unaffected when it is unset.
+_DATA_DIR = os.getenv("CONJURER_DATA_DIR")
+if _DATA_DIR:
+    LOGFILE = os.path.join(_DATA_DIR, "discord.log")
+    SETTINGS_FILE = os.path.join(_DATA_DIR, "settings.json")
+    MEMORY_FIVE_SIARA = os.path.join(_DATA_DIR, "pamiec.json")
+    MEMORY_FIVE_MUZYKA = os.path.join(_DATA_DIR, "pamiec_muzyki.json")
+    SYSTEM_GPT_SETTINGS = os.path.join(_DATA_DIR, "system_gpt_settings.json")
+    ACCIDENT_LOG = os.path.join(_DATA_DIR, "accident_log.json")
+    LOGSTORE = os.path.join(_DATA_DIR, "logs") + os.sep
+    GRAPHICS_PATH = os.path.join(_DATA_DIR, "Conjurer_graphics") + os.sep
+    MUSIC_FOLDER = os.path.join(_DATA_DIR, "music") + os.sep
+    DIR_PATH_SADOX = os.path.join(_DATA_DIR, "Fansadox") + os.sep
+
 LOGFILE = os.getenv("CONJURER_LOG_FILE", LOGFILE)
 NETRC_FILE = os.getenv("CONJURER_NETRC_FILE", NETRC_FILE)
 SETTINGS_FILE = os.getenv("CONJURER_SETTINGS_FILE", SETTINGS_FILE)

docker/Dockerfile.bot

@@ -0,0 +1,56 @@
+# Conjurer main Discord bot.
+# Build from the repository root:
+#   docker build -f docker/Dockerfile.bot -t conjurer-bot .
+FROM python:3.11-slim
+
+# System dependencies:
+#   ffmpeg        - audio download/convert (yt_dlp) and Discord voice
+#   libopus0      - Discord voice (PyNaCl / discord-ext-voice-recv)
+#   poppler-utils - pdf2image (librarian/latex previews)
+#   git           - required by the git+https entry in requirements
+#   build-essential - native wheels (PyNaCl etc.)
+RUN apt-get update && apt-get install -y --no-install-recommends \
+        ffmpeg \
+        libopus0 \
+        poppler-utils \
+        git \
+        build-essential \
+        curl \
+        ca-certificates \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+
+# Optional: Tectonic for the $latex command. Remove this layer if unused.
+RUN curl -fsSL https://drop-sh.fullyjustified.net | sh \
+    && mv tectonic /usr/local/bin/tectonic \
+    || echo "tectonic not installed - the LaTeX feature will be disabled"
+
+COPY requirements_bot.txt ./
+RUN pip install --no-cache-dir --upgrade pip \
+    && pip install --no-cache-dir -r requirements_bot.txt
+
+# Vendored forks take import precedence over the pip packages of the same name,
+# because /app (the script dir) is first on sys.path when running `python bot.py`.
+COPY yt_dlp ./yt_dlp
+COPY spotify_dl ./spotify_dl
+
+# Bot sources + default config/asset templates. Runtime state (conversation
+# history etc.) is read from the mounted /data volume via CONJURER_DATA_DIR,
+# so these committed copies only act as first-run fallbacks.
+COPY *.py ./
+COPY settings.json system_gpt_settings.json accident_log.json pamiec.json pamiec_muzyki.json ./
+COPY fuckery.jpg willowisp.png wod_beacon.jpg ./
+COPY docker/entrypoint.bot.sh /usr/local/bin/entrypoint.sh
+RUN chmod +x /usr/local/bin/entrypoint.sh
+
+ENV PYTHONUNBUFFERED=1 \
+    CONJURER_DATA_DIR=/data \
+    CONJURER_DISCORD_HOST=0.0.0.0 \
+    CONJURER_DISCORD_PORT=5000
+
+VOLUME ["/data"]
+EXPOSE 5000
+
+ENTRYPOINT ["/usr/local/bin/entrypoint.sh"]
+CMD ["python", "bot.py"]

docker/Dockerfile.librarian

@@ -0,0 +1,27 @@
+# Conjurer librarian (Crossref search + local DOI database lookup).
+# Build from the repository root:
+#   docker build -f docker/Dockerfile.librarian -t conjurer-librarian .
+FROM python:3.11-slim
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+        build-essential \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+
+COPY conjurer_librarian/requirements_librarian.txt ./
+RUN pip install --no-cache-dir --upgrade pip \
+    && pip install --no-cache-dir -r requirements_librarian.txt requests
+
+COPY conjurer_librarian/ ./
+
+ENV PYTHONUNBUFFERED=1 \
+    CONJURER_LIBRARIAN_HOST=0.0.0.0 \
+    CONJURER_LIBRARIAN_PORT=5001 \
+    CONJURER_LIBRARIAN_DB_PATH=/doi/
+
+# The local DOI chunk database (large) is mounted here.
+VOLUME ["/doi"]
+EXPOSE 5001
+
+CMD ["python", "conjurer_librarian.py"]

docker/Dockerfile.musician

@@ -0,0 +1,35 @@
+# Conjurer musician (Flask file/playlist service backing the radio).
+# Build from the repository root:
+#   docker build -f docker/Dockerfile.musician -t conjurer-musician .
+#
+# NOTE: this containerises the musician *web service* only. The Liquidsoap
+# radio (radio_conjurer.liq) and any Samba/NFS share tooling run separately.
+FROM python:3.11-slim
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+        build-essential \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+
+COPY conjurer_musician/requirements_musician.txt ./
+RUN pip install --no-cache-dir --upgrade pip \
+    && pip install --no-cache-dir -r requirements_musician.txt
+
+COPY conjurer_musician/ ./
+COPY docker/entrypoint.musician.sh /usr/local/bin/entrypoint.sh
+RUN chmod +x /usr/local/bin/entrypoint.sh
+
+ENV PYTHONUNBUFFERED=1 \
+    CONJURER_MUSICIAN_HOST=0.0.0.0 \
+    CONJURER_MUSICIAN_PORT=5000 \
+    CONJURER_MUSIC_FOLDER=/music \
+    CONJURER_MUSICIAN_BASE=/data \
+    CONJURER_STREAM_TEMPLATE=/app/stream.html
+
+# /music = the mp3 library (read-only ok); /data = writable playlists + logs.
+VOLUME ["/music", "/data"]
+EXPOSE 5000
+
+ENTRYPOINT ["/usr/local/bin/entrypoint.sh"]
+CMD ["python", "conjurer_musician.py"]

docker/compose.bot.yaml

@@ -0,0 +1,22 @@
+# Main bot VM. Run from the repository root:
+#   cp docker/env/bot.env.example docker/env/bot.env   # then edit
+#   docker compose -f docker/compose.bot.yaml up -d --build
+services:
+  conjurer-bot:
+    build:
+      context: ..
+      dockerfile: docker/Dockerfile.bot
+    image: conjurer-bot:latest
+    container_name: conjurer-bot
+    restart: unless-stopped
+    env_file:
+      - env/bot.env
+    ports:
+      # Flask comm layer — musician/librarian POST results here (/prepped_tracks, /conjurer).
+      - "5000:5000"
+    volumes:
+      # Persistent state (conversation history, settings, logs). Populate this
+      # host dir with your existing pamiec.json etc. to preserve command history.
+      - /srv/conjurer/data:/data
+      # Tokens: a read-only netrc covers discord/openai/spotipy/youtube in one file.
+      - /srv/conjurer/secrets/.netrc:/secrets/.netrc:ro

docker/compose.librarian.yaml

@@ -0,0 +1,20 @@
+# Librarian VM. Run from the repository root:
+#   cp docker/env/librarian.env.example docker/env/librarian.env   # then edit
+#   docker compose -f docker/compose.librarian.yaml up -d --build
+services:
+  conjurer-librarian:
+    build:
+      context: ..
+      dockerfile: docker/Dockerfile.librarian
+    image: conjurer-librarian:latest
+    container_name: conjurer-librarian
+    restart: unless-stopped
+    env_file:
+      - env/librarian.env
+    ports:
+      - "5001:5001"
+    volumes:
+      # Local DOI chunk database (0_chunk.txt ... N_chunk.txt).
+      - /srv/librarian/doi:/doi:ro
+      # Optional: netrc holding Crossref credentials (or use CONJURER_CROSSREF_MAILTO).
+      - /srv/librarian/secrets/.netrc:/secrets/.netrc:ro

docker/compose.musician.yaml

@@ -0,0 +1,21 @@
+# Musician VM (optional — you plan to adapt/implement this yourself).
+# Run from the repository root:
+#   cp docker/env/musician.env.example docker/env/musician.env   # then edit
+#   docker compose -f docker/compose.musician.yaml up -d --build
+services:
+  conjurer-musician:
+    build:
+      context: ..
+      dockerfile: docker/Dockerfile.musician
+    image: conjurer-musician:latest
+    container_name: conjurer-musician
+    restart: unless-stopped
+    env_file:
+      - env/musician.env
+    ports:
+      - "5000:5000"
+    volumes:
+      # The mp3 library the service indexes and serves.
+      - /srv/musician/music:/music
+      # Runtime playlists/logs the service writes.
+      - /srv/musician/data:/data

docker/entrypoint.bot.sh

@@ -0,0 +1,16 @@
+#!/bin/sh
+# Seed the data volume with the baked-in default JSON state on first run only.
+# Existing files (e.g. your preserved pamiec.json history) are never overwritten.
+set -e
+
+DATA="${CONJURER_DATA_DIR:-/data}"
+mkdir -p "$DATA"
+
+for f in settings.json system_gpt_settings.json pamiec.json pamiec_muzyki.json accident_log.json; do
+    if [ ! -e "$DATA/$f" ] && [ -e "/app/$f" ]; then
+        cp "/app/$f" "$DATA/$f"
+        echo "entrypoint: seeded $f into $DATA"
+    fi
+done
+
+exec "$@"

docker/entrypoint.musician.sh

@@ -0,0 +1,23 @@
+#!/bin/sh
+# Prepare the musician's writable volume so the web service starts cleanly on a
+# fresh container. Existing files are never overwritten (preserves your data).
+set -e
+
+DATA="${CONJURER_MUSICIAN_BASE:-/data}"
+MUSIC="${CONJURER_MUSIC_FOLDER:-/music}"
+mkdir -p "$DATA" "$DATA/logs" "$MUSIC"
+
+# The track-forwarding thread tails the Liquidsoap radio logs. When the radio
+# runs separately (or hasn't started yet) these files may not exist; create
+# them empty so the tailer waits instead of crashing.
+for f in radio_log.log persistence.log; do
+    [ -e "$DATA/$f" ] || : > "$DATA/$f"
+done
+
+# Ensure the managed playlists exist (routes/rescan also create them; this just
+# avoids a first-tick race before the initial scan).
+for f in all_playlist.playlist hit.playlist request.playlist priority_queue.playlist; do
+    [ -e "$DATA/$f" ] || : > "$DATA/$f"
+done
+
+exec "$@"

docker/env/bot.env.example

@@ -0,0 +1,38 @@
+# Copy to docker/env/bot.env and fill in. Do NOT commit the real file.
+
+# --- Secrets ------------------------------------------------------------
+# Option A: mount a netrc (recommended — covers discord/openai/spotipy/youtube).
+CONJURER_NETRC_FILE=/secrets/.netrc
+# Option B: pass tokens directly (these take precedence over netrc).
+# DISCORD_TOKEN=
+# OPENAI_API_KEY=
+# YOUTUBE_USERNAME=
+# YOUTUBE_PASSWORD=
+
+# --- Data ---------------------------------------------------------------
+# Single mounted volume; all writable state is rooted here.
+CONJURER_DATA_DIR=/data
+
+# --- Flask comm layer (inbound from musician/librarian) -----------------
+CONJURER_DISCORD_HOST=0.0.0.0
+CONJURER_DISCORD_PORT=5000
+
+# --- Internal service auth ----------------------------------------------
+# Set the SAME value on bot + musician + librarian. Empty = auth disabled.
+CONJURER_API_KEY=
+
+# --- Where the bot reaches the other services (other Proxmox VMs) --------
+CONJURER_FILE_SERVICE=http://MUSICIAN_VM_IP:5000
+CONJURER_RADIO_HARBOR=http://MUSICIAN_VM_IP:54321
+CONJURER_LIBRARIAN_SERVICE=http://LIBRARIAN_VM_IP:5001
+
+# --- Conan Exiles bridge (optional; empty/0 = disabled) -----------------
+# CONAN_GM_ROLE_ID=0
+# CONAN_RCON_HOST=
+# CONAN_RCON_PORT=25575
+# CONAN_RCON_PASSWORD=
+# CONAN_CHAT_CHANNEL_ID=0
+# CONAN_EVENTS_CHANNEL_ID=0
+# CONAN_JOIN_CHANNEL_ID=0
+# CONAN_LOG_MODE=local
+# CONAN_LOG_PATH=

docker/env/librarian.env.example

@@ -0,0 +1,21 @@
+# Copy to docker/env/librarian.env and fill in.
+
+CONJURER_LIBRARIAN_HOST=0.0.0.0
+CONJURER_LIBRARIAN_PORT=5001
+
+# Same shared secret as the bot (empty = auth disabled).
+CONJURER_API_KEY=
+
+# Where to POST search results back to (the bot's comm layer).
+CONJURER_MAIN_BOT=http://BOT_VM_IP:5000
+
+# Crossref polite-pool contact (or put credentials in netrc under "crossref").
+CONJURER_CROSSREF_MAILTO=you@example.com
+
+# Local DOI chunk database (mounted volume): expects 0_chunk.txt .. N_chunk.txt
+CONJURER_LIBRARIAN_DB_PATH=/doi/
+CONJURER_LIBRARIAN_MAXTHREADS=41
+CONJURER_LIBRARIAN_CHUNK=_chunk.txt
+
+# Optional netrc (for Crossref credentials)
+CONJURER_NETRC_FILE=/secrets/.netrc

docker/env/musician.env.example

@@ -0,0 +1,17 @@
+# Copy to docker/env/musician.env and fill in.
+
+CONJURER_MUSICIAN_HOST=0.0.0.0
+CONJURER_MUSICIAN_PORT=5000
+
+# Same shared secret as the bot (empty = auth disabled).
+CONJURER_API_KEY=
+
+# Where to POST "now playing" / prepped-track updates (the bot's comm layer).
+CONJURER_MAIN_BOT=http://BOT_VM_IP:5000
+
+# The mp3 library (mounted volume).
+CONJURER_MUSIC_FOLDER=/music
+
+# Runtime paths (mounted volume) — playlists/logs the service writes.
+CONJURER_MUSICIAN_BASE=/data
+CONJURER_LOGSTORE=/data/logs

docs/deployment/DOCKER_PROXMOX.md

@@ -0,0 +1,253 @@
+# Conjurer on Docker / Proxmox
+
+Runbook for running Conjurer as Docker containers across Proxmox VMs:
+
+| Component | VM | Container | Port | Image |
+|-----------|----|-----------|------|-------|
+| **Main bot** | VM-bot | `conjurer-bot` | 5000 (Flask comm) | `docker/Dockerfile.bot` |
+| **Librarian** | VM-librarian | `conjurer-librarian` | 5001 | `docker/Dockerfile.librarian` |
+| **Musician** | VM-musician | `conjurer-musician` | 5000 (+ radio) | `docker/Dockerfile.musician` |
+
+The three talk to each other over HTTP on the Proxmox LAN. Direction of calls:
+
+```
+   bot  --(/mp3,/get_music,/add_to_priority,...)-->  musician
+   bot  --(/query)-------------------------------->  librarian
+musician --(/prepped_tracks)-------------------->    bot
+librarian --(/conjurer results)----------------->    bot
+```
+
+Everything is configured through `CONJURER_*` environment variables (see the
+`docker/env/*.env.example` files). Nothing is hardcoded to a host path anymore.
+
+---
+
+## 0. Prerequisites (per VM)
+
+Create a small Linux VM in Proxmox (Debian 12 / Ubuntu 22.04+ is fine), then
+install Docker:
+
+```bash
+sudo apt-get update && sudo apt-get install -y ca-certificates curl git
+curl -fsSL https://get.docker.com | sh
+sudo usermod -aG docker "$USER"   # log out/in afterwards
+```
+
+Clone the repo on each VM (they build from it):
+
+```bash
+sudo mkdir -p /opt && cd /opt
+git clone https://github.com/migatu/conjurer.git
+cd conjurer
+```
+
+> All `docker compose` commands below are run **from the repo root** (`/opt/conjurer`),
+> because the compose files use `context: ..` relative to `docker/`.
+
+---
+
+## 1. Main bot (VM-bot)
+
+### 1a. Prepare host directories
+
+```bash
+sudo mkdir -p /srv/conjurer/data /srv/conjurer/secrets
+```
+
+### 1b. Preserve existing command history  ⭐
+
+The bot's conversation memory and settings live in JSON files. Copy them from
+your current deployment (e.g. the Pi's `/home/pi/Conjurer/`) into the data
+volume so the history carries over:
+
+```bash
+# run on the Pi, or scp the files across, then place them here:
+sudo cp pamiec.json            /srv/conjurer/data/   # AI conversation history
+sudo cp pamiec_muzyki.json     /srv/conjurer/data/   # music-DJ memory
+sudo cp settings.json          /srv/conjurer/data/   # word/cyclic reactions
+sudo cp system_gpt_settings.json /srv/conjurer/data/
+sudo cp accident_log.json      /srv/conjurer/data/   # if present
+```
+
+If you skip this, the container starts with the (empty) template files baked
+into the image and history begins fresh.
+
+### 1c. Tokens
+
+Drop your existing netrc (the one with `discord`, `openai`, `spotipy`,
+`youtube` entries) into the secrets dir:
+
+```bash
+sudo cp ~/.netrc /srv/conjurer/secrets/.netrc
+sudo chmod 600 /srv/conjurer/secrets/.netrc
+```
+
+(Alternatively skip netrc and set `DISCORD_TOKEN` / `OPENAI_API_KEY` in the env
+file — those take precedence.)
+
+### 1d. Configure and launch
+
+```bash
+cp docker/env/bot.env.example docker/env/bot.env
+# edit docker/env/bot.env: set CONJURER_FILE_SERVICE / _LIBRARIAN_SERVICE to the
+# other VMs' IPs, and CONJURER_API_KEY (same value on all three) if you want auth.
+
+docker compose -f docker/compose.bot.yaml up -d --build
+docker logs -f conjurer-bot
+```
+
+Look for `Loading … module done` for each cog, `Loading conanjurer commands
+module done`, and `All systems: operational`.
+
+---
+
+## 2. Librarian (VM-librarian)
+
+### 2a. Mount the DOI database
+
+The librarian checks keyword hits from Crossref against a local database of
+DOI chunk files (`0_chunk.txt … N_chunk.txt`). Put that database on the VM and
+point the volume at it:
+
+```bash
+sudo mkdir -p /srv/librarian/doi /srv/librarian/secrets
+# copy/replicate your chunk files into /srv/librarian/doi/
+```
+
+> The old Windows path `C:\Database\chunks\` is now `CONJURER_LIBRARIAN_DB_PATH`
+> (defaults to `/doi/` in the container). `CONJURER_LIBRARIAN_MAXTHREADS` (41)
+> and `CONJURER_LIBRARIAN_CHUNK` (`_chunk.txt`) are configurable too.
+
+### 2b. Configure and launch
+
+```bash
+cp docker/env/librarian.env.example docker/env/librarian.env
+# edit: CONJURER_MAIN_BOT=http://BOT_VM_IP:5000, CONJURER_CROSSREF_MAILTO, CONJURER_API_KEY
+
+docker compose -f docker/compose.librarian.yaml up -d --build
+docker logs -f conjurer-librarian
+```
+
+---
+
+## 3. Musician (VM-musician)
+
+The web service is container-ready (`docker/Dockerfile.musician` +
+`compose.musician.yaml`). It containerises the **Flask file/playlist service
+only** — the Liquidsoap radio (`radio_conjurer.liq`), `script.params` and any
+Samba/NFS share tooling are separate and typically stay on the host or a
+dedicated setup (you'll adapt those yourself).
+
+### 3a. Two volumes: the library and the writable state
+
+| Mount | Container path | Holds |
+|-------|---------------|-------|
+| `/srv/musician/music` | `/music` (`CONJURER_MUSIC_FOLDER`) | your mp3 library (indexed/served) |
+| `/srv/musician/data` | `/data` (`CONJURER_MUSICIAN_BASE`) | playlists, logs, `radio_log.log`/`persistence.log` |
+
+```bash
+sudo mkdir -p /srv/musician/music /srv/musician/data
+# point /srv/musician/music at (or copy in) your mp3s
+```
+
+### 3b. Preserve existing playlists/state (optional)
+
+If you already run the musician, copy its working playlists into the data
+volume so nothing is regenerated from scratch:
+
+```bash
+sudo cp all_playlist.playlist hit.playlist request.playlist \
+        priority_queue.playlist playlist.json  /srv/musician/data/ 2>/dev/null || true
+```
+
+The container's entrypoint (`docker/entrypoint.musician.sh`) creates any
+missing playlists and touches `radio_log.log` / `persistence.log` empty so the
+track-forwarding thread waits instead of crashing when the radio runs
+elsewhere. It never overwrites files you copied in.
+
+### 3c. Configure and launch
+
+```bash
+cp docker/env/musician.env.example docker/env/musician.env
+# edit: CONJURER_MAIN_BOT=http://BOT_VM_IP:5000 and CONJURER_API_KEY (match the bot)
+
+docker compose -f docker/compose.musician.yaml up -d --build
+docker logs -f conjurer-musician
+```
+
+### 3d. Radio coupling (if you keep Liquidsoap separate)
+
+The musician only forwards "now playing" to the bot by tailing the radio's
+`radio_log.log` / `persistence.log`. To wire them up, have Liquidsoap write
+those two files into the same `/srv/musician/data` directory (or set
+`CONJURER_RADIO_LOG` / `CONJURER_PERSISTENCE_LOG` to wherever it writes). The
+`/stream` page template is served from the baked-in `/app/stream.html`
+(override with `CONJURER_STREAM_TEMPLATE` if you customise it).
+
+---
+
+## 4. Networking & auth
+
+- Open the ports between VMs on the Proxmox LAN: **bot 5000**, **librarian 5001**,
+  **musician 5000** (+ radio harbor 54321 if used). A simple `ufw allow from
+  <lan-subnet>` per port is enough; do not expose them to the internet.
+- **Auth:** set the same `CONJURER_API_KEY` in all three `*.env` files. Then
+  every internal call carries `X-Conjurer-Api-Key` and each service rejects
+  requests without it (HTTP 401). Leave it empty everywhere to disable auth
+  (fully backward compatible). ⚠️ Setting it on only one side breaks the link.
+- The addresses point at each other by VM IP (or a DNS name). Set:
+  - bot: `CONJURER_FILE_SERVICE`, `CONJURER_RADIO_HARBOR`, `CONJURER_LIBRARIAN_SERVICE`
+  - librarian & musician: `CONJURER_MAIN_BOT`
+
+---
+
+## 5. Verify
+
+```bash
+# bot is up and reachable from another VM:
+curl http://BOT_VM_IP:5000/conjurer            # -> "ALIVE"
+# librarian answers:
+curl http://LIBRARIAN_VM_IP:5001/ -I           # service reachable
+docker ps            # all containers "Up"
+docker logs conjurer-bot --tail 50
+```
+
+In Discord, exercise a command that round-trips through a service (e.g. a music
+search that hits the musician, or a librarian query) to confirm the wiring and
+the API key.
+
+---
+
+## 6. Updates
+
+```bash
+cd /opt/conjurer && git pull
+docker compose -f docker/compose.bot.yaml up -d --build   # rebuild + restart
+```
+
+Data in `/srv/.../data` and `/doi` / `/music` volumes survives rebuilds, so
+history and databases persist across updates.
+
+---
+
+## 7. Rollback / coexistence
+
+- The native (Raspberry Pi / systemd) deployment is unaffected — none of the
+  defaults changed; the container behaviour is opt-in via `CONJURER_DATA_DIR`
+  and the other env vars. You can run both during migration.
+- To roll back a VM: `docker compose -f docker/compose.<svc>.yaml down` and
+  restart the previous deployment. The JSON state in `/srv/.../data` is plain
+  files you can copy back to the Pi if needed.
+
+---
+
+## Notes on the images
+
+- **Bot** uses the vendored `yt_dlp/` and `spotify_dl/` forks (they win over the
+  pip packages because `/app` is first on `sys.path`), so your patches stay
+  active without the old `sed` hacks from `install_main_bot.sh`.
+- **Tectonic** (LaTeX `$latex` command) is installed best-effort; if the build
+  step fails the bot still runs, just without LaTeX. Remove that layer from
+  `Dockerfile.bot` if you don't need it.
+- Voice needs `ffmpeg` + `libopus0` (both in the image). No microphone/pyaudio
+  is required — voice is received over Discord and transcribed via AssemblyAI.