diff --git a/fsck2025/artwork/fsck-outro-base.mov b/fsck2025/artwork/fsck-outro-base.mov
deleted file mode 100644
index a92d4bc..0000000
Binary files a/fsck2025/artwork/fsck-outro-base.mov and /dev/null differ
diff --git a/fsck2025/config.ini b/fsck2025/config.ini
index 1bd8aec..fcc53fc 100644
--- a/fsck2025/config.ini
+++ b/fsck2025/config.ini
@@ -1,7 +1,7 @@
 [meta]
 schedule = https://cfp.ctbk.de/fsck-2025/schedule/export/schedule.xml
 ;; path to background video
-template = artwork/fsck-intro-base.mov
+template = artwork/fsck-intro-base.mkv
 ;; whether background video uses transparency (needs to be .mov)
 alpha = false
 ;; whether background video is prores 4444
diff --git a/make-ffmpeg.py b/make-ffmpeg.py
index c708142..2bdf880 100755
--- a/make-ffmpeg.py
+++ b/make-ffmpeg.py
@@ -220,11 +220,12 @@ def enqueue_job(conf: Config, event):
 
     outfile = str(PurePath(args.project, event_id + ".ts"))
     outfile_mov = str(PurePath(args.project, event_id + ".mov"))
+    outfile_mkv = str(PurePath(args.project, event_id + ".mkv"))
 
     if event_id in args.skip:
         event_print(event, "skipping " + str(event["id"]))
         return
-    if (os.path.exists(outfile) or os.path.exists(outfile_mov)) and not args.force:
+    if (os.path.exists(outfile) or os.path.exists(outfile_mov) or os.path.exists(outfile_mkv)) and not args.force:
         event_print(event, "file exist, skipping " + str(event["id"]))
         return
 
@@ -280,6 +281,29 @@ def enqueue_job(conf: Config, event):
                 "mov",
                 outfile_mov,
             ]
+    elif conf.fileext == ".mkv":
+        cmd += [
+            "-map",
+            "0:0",
+            "-c:v",
+            "libsvtav1",
+            "-preset",
+            "8",
+            "-b:v",
+            "10M",
+            "-aspect",
+            "16:9",
+            "-map",
+            "0:1",
+            "-c:a",
+            "libopus",
+            "-b:a",
+            "196k",
+            "-shortest",
+            "-f",
+            "matroska",
+            outfile_mkv,
+        ]
     else:
         cmd += [
             "-map",
@@ -308,6 +332,7 @@ def enqueue_job(conf: Config, event):
     subprocess.check_call(
         cmd,
         stderr=subprocess.STDOUT,
+        stdout=subprocess.DEVNULL,
     )
 
     return event_id