Here's mine for comparison
root@c7d72d55d4ec:/app# which yt-dlp
/usr/local/bin/yt-dlp
root@c7d72d55d4ec:/app# yt-dlp --version
2026.06.09
root@c7d72d55d4ec:/app# yt-dlp -U
Latest version: [email protected] from yt-dlp/yt-dlp
yt-dlp is up to date ([email protected] from yt-dlp/yt-dlp)
root@c7d72d55d4ec:/app# yt-dlp -F https://www.youtube.com/@KittenAcademy/live
[youtube:tab] Extracting URL: https://www.youtube.com/@KittenAcademy/live
[youtube:tab] @KittenAcademy/live: Downloading webpage
[youtube] Extracting URL: https://www.youtube.com/watch?v=T4XZmMPQ9Kw
[youtube] T4XZmMPQ9Kw: Downloading webpage
WARNING: [youtube] No supported JavaScript runtime could be found. Only deno is enabled by default; to use another runtime add --js-runtimes RUNTIME[:PATH] to your command/config. YouTube extraction without a JS runtime has been deprecated, and some formats may be missing. See https://github.com/yt-dlp/yt-dlp/wiki/EJS for details on installing one
[youtube] T4XZmMPQ9Kw: Downloading android vr player API JSON
[youtube] T4XZmMPQ9Kw: Downloading m3u8 information
[info] Available formats for T4XZmMPQ9Kw:
ID EXT RESOLUTION FPS ¦ TBR PROTO ¦ VCODEC ACODEC
-----------------------------------------------------------
91 mp4 256x144 15 ¦ 290k m3u8 ¦ avc1.42C00B mp4a.40.5
92 mp4 426x240 30 ¦ 546k m3u8 ¦ avc1.4D4015 mp4a.40.5
93 mp4 640x360 30 ¦ 1210k m3u8 ¦ avc1.4D401E mp4a.40.2
94 mp4 854x480 30 ¦ 1569k m3u8 ¦ avc1.4D401F mp4a.40.2
95 mp4 1280x720 30 ¦ 2969k m3u8 ¦ avc1.4D401F mp4a.40.2
96 mp4 1920x1080 30 ¦ 5421k m3u8 ¦ avc1.640028 mp4a.40.2
Looks like SLM is using an older yt-dlp
root@84221e15c7fb:/app# which yt-dlp
/usr/local/bin/yt-dlp
root@84221e15c7fb:/app# yt-dlp --version
2026.03.17
root@84221e15c7fb:/app# yt-dlp -U
Current version: [email protected] from yt-dlp/yt-dlp
Latest version: [email protected] from yt-dlp/yt-dlp
ERROR: You installed yt-dlp from a manual build or with a package manager; Use that to update
root@84221e15c7fb:/app# yt-dlp -F https://www.youtube.com/@KittenAcademy/live
[youtube:tab] Extracting URL: https://www.youtube.com/@KittenAcademy/live
[youtube:tab] @KittenAcademy/live: Downloading webpage
[youtube] Extracting URL: https://www.youtube.com/watch?v=T4XZmMPQ9Kw
[youtube] T4XZmMPQ9Kw: Downloading webpage
WARNING: [youtube] No supported JavaScript runtime could be found. Only deno is enabled by default; to use another runtime add --js-runtimes RUNTIME[:PATH] to your command/config. YouTube extraction without a JS runtime has been deprecated, and some formats may be missing. See https://github.com/yt-dlp/yt-dlp/wiki/EJS for details on installing one
[youtube] T4XZmMPQ9Kw: Downloading android vr player API JSON
[youtube] T4XZmMPQ9Kw: Downloading m3u8 information
[info] Available formats for T4XZmMPQ9Kw:
ID EXT RESOLUTION FPS ¦ TBR PROTO ¦ VCODEC ACODEC
-----------------------------------------------------------
91 mp4 256x144 15 ¦ 290k m3u8 ¦ avc1.42C00B mp4a.40.5
92 mp4 426x240 30 ¦ 546k m3u8 ¦ avc1.4D4015 mp4a.40.5
93 mp4 640x360 30 ¦ 1210k m3u8 ¦ avc1.4D401E mp4a.40.2
94 mp4 854x480 30 ¦ 1569k m3u8 ¦ avc1.4D401F mp4a.40.2
95 mp4 1280x720 30 ¦ 2969k m3u8 ¦ avc1.4D401F mp4a.40.2
96 mp4 1920x1080 30 ¦ 5421k m3u8 ¦ avc1.640028 mp4a.40.2