Note
This image is based on my gbraad-devenv/fedora image, and is therefore personalized;
it uses Gerard as user with my dotfiles and tailored to use services exposed by my homelab setup.
For a more generic image, have a look at spotsnel-apps/personal-obsidian
$ podman run -d --name obsidian --cap-add=NET_ADMIN --cap-add=NET_RAW --device=/dev/net/tun --device=/dev/fuse ghcr.io/gbraad-apps/obsidian:latest
$ podman exec obsidian tailscale up
$ ip=`podman exec obsidian tailscale ip -4`
$ echo "Open Obsidian at https://${ip}:8444"
... and then open https://[tailscale_ip]:8444 as shown