Your home instance will only start receiving posts from remote communities from the time that the first user subscribes to it onwards. So assuming you are the first person from the SDF.org Lemmy instance to sub to that community, the SDF.org instance will not backfill posts or comments from prior to the time that you subbed. If you know the URL of a specific post or comment, you can force the SDF.org instance to fetch it by plugging the post or comment’s direct URL into the search bar.
See the Lemmy federation docs
I’m also currently migrating all of my self-hosted services from docker to podman. Look into using Quadlet and systemd rather than podman-compose: https://www.redhat.com/sysadmin/quadlet-podman
Your Quadlet
.container
files will end up looking very similar to your docker compose files. Podman will automatically generate a systemd service unit for you if you drop the.container
file in your user systemd unit directory ($HOME/.config/containers/systemd/) and runsystemctl --user daemon-reload
. Then starting the container on boot is as simple assystemctl --user enable --now containername.service
.This will not solve your rootful vs. rootless issues, as others have pointed out, but Quadlet/systemd is nice replacement for the service/container management layer instead of docker-compose/podman-compose