diff --git a/Makefile b/Makefile
index 1c47226..c472ed8 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,10 @@
 .PHONY: run test build frontend backend
 
 run:
-	HOST=127.0.0.1 PORT=4009 COOKIES_DIR=cookies python3 ./backend/main.py
+	# See backend/config.py for more fields
+	HOST=127.0.0.1 PORT=4009 \
+	COOKIES_DIR=cookies \
+	python3 ./backend/main.py
 
 test:
 	@python3 -m unittest discover -vcs ./backend
diff --git a/backend/config.py b/backend/config.py
index 86e3d40..daba5d4 100644
--- a/backend/config.py
+++ b/backend/config.py
@@ -8,9 +8,24 @@ class Config:
 
         self.host = os.getenv('HOST') or '0.0.0.0'
         self.port = int(os.getenv('PORT') or 4009)
-        self.path_length = int(os.getenv('PATH_LENGTH') or 255)
+
+        # This directory will be searched for <site>.txt (e.g. yandex.txt)
+        # Cookies are in Netscape CSV format, see yt-dlp docs
         self.cookies_dir = Path(os.getenv('COOKIES_DIR') or 'cookies')
 
+        # Note: yt-dlp's path trimmer also counts album_path_tmpl, not only filename
+        # Why 235? 255 is the ext4 limit. 255 - len("/var/lib/musicdlp/") = 237, rounded down to 235
+        self.path_length = int(os.getenv('PATH_LENGTH') or 235)
+
+        self.tmpl = os.path.join(
+            # `artists.0` instead of `artist`, because the latter can contain "feat. ..."
+            os.getenv('ALBUM_PATH_TMPL') or 'music/%(artists.0)s/%(album)s',
+            os.getenv('TRACK_FILE_TMPL') or '%(track)s.%(ext)s',
+        )
+
+        # Proxy URL for yt_proxied downloader (can be used for geo-restricted content)
+        self.yt_proxy = os.getenv('YT_PROXY') or 'http://127.0.0.1:1080'
+
 
 _config: Config | None = None
 
diff --git a/backend/ydl_pool.py b/backend/ydl_pool.py
index ee6bef7..e899b09 100644
--- a/backend/ydl_pool.py
+++ b/backend/ydl_pool.py
@@ -17,7 +17,7 @@ class _CreateYDL:
     @staticmethod
     def yt_proxied() -> YoutubeDL:
         ydl = _CreateYDL.youtube()
-        ydl.params['proxy'] = 'http://127.0.0.1:1080'  # TODO
+        ydl.params['proxy'] = config.get().yt_proxy
         return ydl
 
     @staticmethod
@@ -52,9 +52,8 @@ class Downloaders:
         if ydl is None:
             ydl = create_ydl_fn[site]()
 
-            ydl.params['trim_file_name'] = cfg.path_length  # NOTE: includes path, not only filename
-            # artists.0 instead of artist, because it can contain "feat. ..."
-            ydl.params['outtmpl']['default'] = 'music/%(artists.0)s/%(album)s/%(track)s.%(ext)s'
+            ydl.params['trim_file_name'] = cfg.path_length  # Note: not only filename, but path in outtmpl
+            ydl.params['outtmpl']['default'] = cfg.tmpl
             ydl.add_post_processor(id3pp.ID3TagsPP(), when='post_process')
 
             cookies = cfg.cookies_dir / (site + '.txt')