nix: Make nix the root

Which means now I'll have to think about real prefixes in commit names.

unprocessed/config/scripts/musiqueBof

@@ -0,0 +1,39 @@
+#!/usr/bin/env python3
+
+import logging
+import os
+import shutil
+import sys
+
+import coloredlogs
+
+coloredlogs.install(level="DEBUG", fmt="%(levelname)s %(message)s")
+log = logging.getLogger()
+
+MUSICS_FOLDER = os.path.join(os.path.expanduser("~"), "Musique")
+BOF_FOLDER = os.path.join(os.path.expanduser("~"), ".MusiqueBof")
+
+for f in sys.argv[1:]:
+    src = os.path.realpath(f)
+    if not os.path.isfile(src):
+        log.error("{} does not exists".format(src))
+        continue
+
+    srcBase = None
+    if src.startswith(MUSICS_FOLDER):
+        srcBase = MUSICS_FOLDER
+        dstBase = BOF_FOLDER
+    elif src.startswith(BOF_FOLDER):
+        srcBase = BOF_FOLDER
+        dstBase = MUSIC_FOLDER
+    else:
+        log.error("{} not in any music folder".format(src))
+        continue
+
+    common = os.path.relpath(src, srcBase)
+    dst = os.path.join(dstBase, common)
+    dstFolder = os.path.dirname(dst)
+
+    log.info("{} → {}".format(src, dst))
+    os.makedirs(dstFolder, exist_ok=True)
+    shutil.move(src, dst)