Lol I remember when I had trouble setting up slskd in docker, when I was learning. I couldnt figure out how to properly setup my shared files directory and was getting auto banned by people and couldnt figure out why. Then I finally figured it out and got it working. It is a bit dumb to auto ban for that but as you said, it is what it is.
No, as Azura said it applies to everything. It creates a mesh network that all of your devices can talk to. I do suggest using gluetun in your docker setup though so you can still run slskd behind a vpn. But all containers will be accessible through your tailscale ip address.
Maybe try running through tailscale. With tailscale you dont need to open ports. I run soulseek and my entire server behind tailscale and download and upload just fine in soulseek.
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